24K
Observer: Alessandro Dimai
Location: Col Druscie Observatory, Cortina d'Ampezzo, Italy
Date: April 1997
43K
Observer: Mark Oetting
Location: Colorado
Date: April 1997
Two small flashlights, automobile headlights and flashers, my duct-taped Minolta x700, some fuji 800 film.
32K
Observer: Don Lieu
Location: Mipitas, California
Date: April 1997
1. Fuji 400, Nikon 35 mm set @ f/2.8, 1 min on tripod
2. Fuji 400, Nikon 24 mm set @ f/2.8, 1 min on tripod
72K
Observers: Gladys McAffrey, Lisa McAffrey
Location: Wasilla, Alaska
Date: April 1997
177K
Observer: William Riggles
Location: Ruidoso, New Mexico
Date: April 1997
28mm f 2.8 @2.8 15sec.
7K
Observer: Terry Jay Jones
Location: ???
Date: April 1997
1. Normal intensity image of the comet at K. Note how the combination of the jet activity and the rotation of the comet creates a clear 'sprinkler hose' pattern on the side of the nucleus facing the Sun (SW).
2. Same image run through a Sobel edge filter. The filter just takes the derivative of the image and is brightest where the [Image] slope in the intensity is greatest. The bright arcs to the SW are at the leading edges of the jets.
3. Here is the percent polarization image. The brightest spots in the second jet arc are about 11% at 2.2 microns. The darkest areas to the NW are about 7%. The polarization for the whole comet and the nucles is about 9.5%. If all of the grains in the coma were the same everywhere, then the polarization would be the same [Image] everywhere as well. The clear presence of the jet in the polarization image indicates that the grain population in the jet material is different is some ways than the general grain population lifting off of the nucleus. Most likely the grains in the jet are significantly smaller than the grains in the rest of the coma.
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Observer: Gianni Rende
Location: Cosenza, Italy
Date: April 1997
Film Kodak 100 ISO, 15 second exposure.
6K
Observer: Travis Norman
Location: Houston, Texas
Date: April 1997
1. 55mm f2 regular 35mm camera tracking for about 10-15min exposure with 400 ASA.
2. 2000mm f10 8" celestron (cass) tracking for about 20-35 min exposure with 400 ASA.
43K
Observer: William Daugherty
Location: Brick, New Jersey
Date: April 1997
Pentax ME with 135mm and 10 sec. with Kodak 400 film.
122K
Observer: Pete Petree
Location: Kansas City, Missouri
Date: April 1997 21:00 PM
35mm Canon A2 W/50mm 1:1.8 lens mounted on a fixed tripod. Film is Fuji Provia 1600. Exsposure was 40 sec. @ f1.8.
49K
Observer: Jerry Lodriguss
Location: Cassel Observatory, New Buffalo, Pennsylvania
Date: April 1, 1997
Photo taken with a Nikon 400mm F/2.8 lens on unhypered Fujicolor Super G 800 Plus color negative film, 5 minute exposure.
93K
Observer: Jerry Lodriguss
Location: Cassel Observatory, New Buffalo, Pennsylvania
Date: April 1, 1997
Photo taken with a Nikon 85mm F/1.4 lens working at f/2.8 on unhypered Fujicolor Super G 800 Plus color negative film, 5 minute exposure.
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Observer: Gregory Terrance
Location: Lima, New York
Date: April 1, 1997
1. tri-color image of hb's nucleus using a 10" f6 reflector, PixCel 255 CCD camera. (r = .07s, g = .1s, b = .15s) Note the double wave in the shell structure.
2. 100mm Olympus lens with 80a blue filter, 300 sec exposure, IMG1300 CCD camera from Finger Lakes Instr.
3. 200mm Olympus lens, 300 sec expsoure, IMG1300
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42K
Observer: Glenn Banack
Location: Camrose, Alberta, Canada
Date: April 1, 1997
All photos were taken with a 35mm cam. 50mm lens, 1.7 fstop and kodak gold plus 100 asa film.
98K
Observer: Jerry Lodriguss
Location: Cassel Observatory, New Buffalo, Pennsylvania
Date: April 1, 1997
Nikon 35mm F/2 lens working at f/2.8 on unhypered Fujicolor Super G 800 Plus color negative film, 5 minute exposure tracking on the comet. My two sons are in the foreground and they are illuminated by a strobe with a red filter fired at the beginning of the exposure.
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20K
Observer: Peter Barvoets
Location: Adirondacks, New York
Date: April 1, 1997
105mm and 18mm. 5 min. each.
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63K
Observer: Bob Yen
Location: Mojave Desert, California
Date: April 1, 1997
First image taken with a 610mm telephoto. Second image is a perihelion image, taken with a 50 mm lens (35mm format).
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63K
Observer: Bob Yen
Location: Mt. Pinos, California
Date: April 1, 1997
93K
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Observers: Larry Daniel, Ski Chilton
Location: Pinnacle, North Carolina
Date: April 1, 1997
The images were taken with Kodak Gold 400 using a 50mm lens at f1.8 for 30 seconds. The first image shows Pilot Mountain with the Andromeda Galaxy to the right. In the second image, the log tobacco barn was lit with a Vivitar 283 flash unit set at maximum range for the camera settings.
10K
Observer: K. Good
Location: Oak Hollow Park, Irwin, Pennsylvania
Date: April 1, 1997
1. 50 mm f/1.8, 30 sec., ASA 1000.
2. 210 mm f/4, 30 sec. ASA 1000.
24K
Observer: Serge Lavoie
Location: Rawdon, Quebec, Canada
Date: April 1, 1997
Image taken with a lens of 135mm f:3.2 on Kodak 400 a.s.a. it was a 5 minutes exposure.
69K
Observer: Peter Gottlieb
Location: Bottrop, Germany
Date: April 1, 1997
Canon EOS 1000 F/N with f1,8/50mm, 20 sec on Fuji SG800, unguided.
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Observer: Denis Bergeron
Location: Quebec, Canada
Date: April 1, 1997 00:05 UT
Images of the Hale-Bopp comet's nuclei were taken with a Meade SCT 10" F10 (FL:2500mm). I used a CCD camera SBIG ST6 and have taken 9 images exposed 1 sec each. All the 9 images were added and processed by unsharp masking and other processing technics. The blue color was added to increase the appearance of the comet and is not the real color of Hale-Bopp.
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8K
Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: April 1, 1997 00:30, 00:40 UT
First image is a 0 second image through a red filter started at 00:30:00 has been processed using a rotational gradient filter with rotation 10 degrees and amplification 10.
Second image is a 20 second image through a blue filter started at 00:40:00 has been processed using a rank order masking technique; a 5x5 pixel mask with rank 60% and amplification 10 was used in this case.
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Observers: Alberto Quijano Vodniza, Luis M. Quinones
Location: Mayaguez, Puerto Rico
Date: April 1, 1997 00:30, 00:40 UT
The first image was taken with a Canon camera through a 16 inch, F10 reflector. 10 sec exposure. Film : 1000 ASA Kodak Royal Gold .
The second image was taken with a Canon camera through a 5 inch, F10 reflector. 15 sec exposure. Film : 1000 ASA Kodak Royal Gold . Sky was very cloudy.
53K
Observer: James Leonard
Location: Kenova, West Virginia
Date: April 1, 1997 00:45 UT
Photograph taken with a Pentax K-1000 on Fuji 800 Super G+ with a 50mm f/2 lens for 20 seconds. Foreground illuminated with a flash.
26K
Observers: Ricardo Valverde, Pablo Ortega Rodriguez, Eduardo Lopez
Location: Costa Rica
Date: April 1, 1997 01:00 UT
5 minutes on ASA 800 Fuji. The lens were piggybacked and it was a 400 mm. Nikon, f:2.8 series.
28K
Observer: Philippe Deschenes
Location: St-Valerien, Quebec, Canada
Date: April 1, 1997 01:00 UT
Equipment: Nikkormat + 210 mm, F/3.5. Exposure: App. 15 min.
11K
Observer: John Pane
Location: Fort DeSoto Park, St Petersburg, Florida
Date: April 1, 1997 01:14 UT
35mm SLR camera on a fixed tripod, 50mm lens at f/2.0, Kodak Ektachrome EPH-1600 slide film, 30 second exposure.
13K
Observer: Anna Thornton-Wyman
Location: Auburndale, Florida
Date: April 1, 1997 01:15-01:30 UT
50mm 2.8, KodakGold 400, 10sec.
19K
Observer: Scott Kroeger
Location: Green Lake, Wisconsin
Date: April 1, 1997 01:20 UT
28mm f/4.5, 1 min, Fuji SuperHG 1600, Battery driven "Barn Door" mount.
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Observers: Bill Keel, Christopher Keel
Location: University of Alabama, Tuscaloosa, Alabama
Date: April 1, 1997 01:21, 02:00 UT
First image is the nucleus in a 5-second exposure showing the encircling dust arcs, Kodacolor 1000, the 25-cm refractor of the University of Alabama in Tuscaloosa.
In the second image, the comet is over the dome of the Alabama refractor, being admired by Christopher Keel (age 8). 10-second exposure in moderate light pollution (only because some light sources are shut down for spring break). Kodacolor 1000, 50mm f/1.8
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Observer: William Griffiths
Location: St. Marietta, Ohio
Date: April 1, 1997 01:35 UT
First picture taken with Canon A2E with 28mm lens at 3.5 1000 seed Kodak Royal Gold film 10 sec. Comet is above Washingtion County Courthouse 216 Putnam St. Marietta, Ohio. Second picture is taken with a 300mm lens at 5.6 same place and about same time as first picture
35K
Observer: Ellen Papenburg
Location: Drayton, Ontario, Canada
Date: April 1, 1997 01:48 UT
Equipment: an old Practica f/1.8-50mm not guided on tripod. Exposure and film: 30 seconds on Fujicolor Super HG 1600 ASA/ISO.
Second image:
Equipment: Telelens (f/3.8-205mm) guided with a "barndoor tracker" mounted
on an old Unitron tripod.
Exposure and film: 4 minutes on Kodak Royal Gold 1000 ASA/ISO.
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Observer: David Lynch
Location: Puckett Observatory, Mountain Town, Georgia
Date: April 1, 1997 01:50 UT
This color photo of Hale-Bopp was obtained with a Nikon 2.8 300mm lens. Exposure time-4 minutes on PJM-2 film.
97K
Observer: Ron Needham
Location: Lafayette, Indiana
Date: April 1, 1997 02:00 UT
Kodak Royal Gold 1000, 60mm lens, f2.8, 15sec.
55K
21K
Observers: David Fideler, Andy Harwood
Location: Lake Michigan, Pentwater, Michigan
Date: April 1, 1997 02:00-03:00 UT
FILM: Kodak Ektachrome P1600; CAMERA: Pentax K1000 on stationary tripod; LENS: 50mm; EXPOSURES: About one minute. Photos processed for brightness, contrast, and sharpness in Photoshop; the cyan in the photos was increased to bring out the detail of the blue ion tail.
17K
Observers: David Renneke, Mike Shaw
Location: Dixon, Iowa
Date: April 1, 1997 02:08 UT
20 second exposure, 85mm lens. Image taken at the St. Ambrose University Menke Observatory north of Dixon, Iowa, using a Minolta zoom lens at f/4 on an SBIG ST-6 CCD camera guided by a telescope.
48K
Observers: Michael Peck, George Krumins
Location: Champaign County, Illinois
Date: April 1, 1997 02:15 UT
Accidental multiple exposure of ~15 min. total length. Nikon FM2 piggybacked on guiding telescope; 105mm f/2.8 micro-Nikkor @ f 2.8. Film: Ektachrome 100SW pushed 2 stops.
41K
Observer: Mitchell Kite
Location: Madison, Wisconsin
Date: April 1, 1997 02:17 UT
This photo was taken using a Canon AE-1 camera with a Canon 50mm lens at f/1.8. The camera was mounted on a tripod and the exposure time was 35 seconds on Fuji Super G 800 color print film.
129K
20K
Observer: John Terpstra
Location: Garson, Ontario, Canada
Date: April 1, 1997 02:30 UT
60 second exposure on Kodak Gold 200; 50mm at f1.8. Note the greenish coloring at the bottom of the photo, a portion of an arc of aurora borealis.
57K
Observer: Susan Wright
Location: Parc de la Mauricie, Quebec, Canada
Date: April 1, 1997 03:00 UT
Instrument: Lens 35mm f: 3.5, with Fudjicolor iso 400. You see M31 near the trees.
170K
31K
Observer: Ron Richolson
Location: Salina, Kansas
Date: April 1, 1997 03:15 UT
This photo was taken using a Minolta SRT101 with a 90-230 mm lens using Kodak PJM film. It was set at 230 mm at f4.5 for 10 minutes.
15K
Observers: Ron Baalke, Sue Kientz
Location: Pasadena, California
Date: April 1, 1997 03:24 UT
Image of Comet Hale-Bopp just 10 minutes after perihelion (its closest approach to the Sun). Image taken with a Canon A2 mounted on a tripod with a 100mm/f2.8 lens, unguided. Film used is Fujicolor Super HG 1600. 30 second exposure.
42K
Observer: Fred Stauffer
Location: Gondiswil, Switzerland
Date: April 1, 1997 04:15 UT
Image taken by Olympus-2n, 50mm lens f=1.4, Kodak Royal Gold 400, 20 sec. The tree was lighted by electric torch.
8K
Observer: Bill Robicheaux
Location: Seattle, Washington
Date: April 1, 1997 04:15 UT
60 second exposure on ASA 400 film taken through a 6 inch reflecting telescope (262W X 275H).
31K
Observer: Fred Stauffer
Location: Gondiswil, Switzerland
Date: April 1, 1997 04:30 UT
Camera: Olympus OM-2n. 50mm/f=1.4 lens. Kodak Ektar 1000. Exposure time 20 sec. The image was scanned by Remo Nyfeler from a 20x30cm paper print. Note on left side of Hale-Bopp the track of MIR Space Station rising from the horizon.
65K
Observer: Charles McKee
Location: Burnaby Mountain, BC, Canada
Date: April 1, 1997 04:55-05:35 UT
Camera: Olympus OM-1, barndoor tracker Film: Fujui 1600 asa.
78K
Observer: Norman Azose
Location: Seward Park, Seattle, Washington
Date: April 1, 1997 05:00 UT
Minolta SRT-101 35mm camera on a fixed tripod with a cable release using Kodak Royal Gold 1000 film. 58mm f/2.8, 15 seconds.
52K
13K
Observers: Jean Lecacheux, Francois Colas
Location: Pic du Midi Observatory, France
Date: April 1, 1997 05:03 UT
This image was taken on April 1st, at 5h03 UT just after comet perihelion (April 1st, 3H18 UT). This image is representative of our extensive comet survey using Gunn 6 filter and the 105 cm telescope. The comet is now difficult to observe in the morning sky, we can point the telescope only 1 hour before sunrise, the comet is at only 10 degrees of elevation. The image was processed with a radial gradient to enhance the shell structure. The dust shells visible since the end of january are now showing a double structure. Each "wave system" have the same interval but not the same curvature. This double structure have to be study in relation with the two jets now clearly visible, close to the nucleus.
269K
85K
Observer: Richard Wainscoat
Location: Mokuleia, Oahu, Hawaii
Date: April 1, 1997 06:00 UT
Nikon N90s.
53K
Observer: Brian Schuette
Location: Toronto, Canada
Date: April 1, 1997 08:15 PM
Kodak 400 film with a 135 mm lens at F2.8. The exposure time was 30 seconds.
19K
Observer: Nancy Lamping
Location: Midland, Michigan
Date: April 1, 1997 09:45 UT
Fujica MPF105X. Time elapse at 50 seconds using a Katana mc zoom f=80-200mm lens at 200mm.
24K
Observer: Wolfgang Rafelt
Location: Sachsen, Germany
Date: April 1, 1997 19:12 UT
35mm/f.28, 8'. Scotch Chrome 400.
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Observer: Martin Mutti
Location: Stockerenweg 1, Wichtrach, Switzerland
Date: April 1, 1997 19:40-20:20 UT
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Photo Lens: Minolta 28mm f/2.5 stopped by f/4
CCD-Camera: SBIG ST-7
IR Stop + red, green, blue filter
Integrations: red: 4 X 60 sec
green: 4 X 90 sec
blue: 4 X 300 sec
total: 1800 sec
Image manipulation: dark substract, flat field
Imaging software: CCDOPS36, PRISM
51K
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Observer: Udo Zlender
Location: Bonn, Germany
Date: April 1, 1997 19:53 UT
These three ccd-images of comet Hale-Bopp were made at the prime focus of a Celestron C11 at 19:53 UT. Camera was OES LcCCD14 in high resolution mode (772 x 580 pixels), exp. time was 5 seconds, no filters were used. The pictures are a combination of 7 images which were dark subtracted, flat fielded, registered and median combined.
165K
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Observers: Marianna Nodale, Francois St-Pierre, Jochen Rink
Location: Pearson College Observatory, Victoria, British-Columbia, Canada
Date: April 1, 1997 08:00, 08:30
The first image was taken with Fujicolor 800 super G was exposed through a 250mm zoomlens working at f: 4.5, exposure time 13 minutes.
The second image was taken with Fujicolor 800 super G was exposed through a 180mm; the exposure time was 9 minutes. Note that the ion tail reaches a double cluster in Perseus.
16K
Observer: Anna Winiarska
Location: Skoczow, Poland
Date: April 1, 1997 18:36 UT
Tele 110mm/2.8, Zenit TTL,exposition 80s, film Konica 100.
22K
Observers: Vadim Burwitz, Klaus Reinsch, Juergen Krieg, Harald Schink
Location: Hainberg Observatory, Goettingen, Germany
Date: April 1, 1997 19:01-19:16 UT
Stacked images obtained from two series of short (3-9 sec) exposures taken with an ST-6 CCD camera at the 25 cm, f/16 refractor. The exposures combined to the first image have been taken between 19:01 and 19:16 UT on the evening of April 1, 1997. The image is shown with a logarithmic intensity scale. The second image is a contrast enhanced version obtained by applying an adaptive Laplace filter to the first image.
47K
Observer: Fred Wehner
Location: Kaiserslautern, Germany
Date: April 1, 1997 19:25 UT
This image is made on Scotch Chrome 800/3200P (pushed to 1600 ISO) with a Pentax 1:1.4 50mm and 25 sec exp. time.
99K
Observer: Erwin Schwab
Location: Starkenburg Observatory, Heppenheim, Germany
Date: April 1, 1997 19:46-19:57 UT
Telescope: Celestron Schmidt-camera d=5.5 inches f=225mm. Film: Kodak Elite 100ASA.
52K
Observer: Fred Stauffer
Location: Gondiswil, Switzerland
Date: April 1, 1997 19:50, 21:15 UT
Camera: Olympus-2n, 50mm/f=1.4 lens, tripod mount unguided.
First image: Kodak RG 400, 7 sec. The Jura-Mountains in the background are in a distance of 28 kms.
Second image: Kodak Ektar 1000, 25 sec. For receiving better effect, I "painted" the tree's top with the beam of a flash-light by moving it rapidly back and forth during 8 seconds.
44K
Observer: Sybrand Kiljan
Location: Bergen aan Zee (North Sea Coast), The Netherlands
Date: April 1, 1997 19:55 UT
Lens: Nikon 16 mm Fish-Eye f 2.8, Exposure Time: 1 minute (not guided), Film: Fuji 400 ASA.
73K
Observers: Oliver Krause, Niklas Goerke
Location: Pass Bernina, Switzerland
Date: April 1, 1997 19:55-20:22 UT
All images were exposed on TMAX 400 pushed to 800 ASA. Guiding was done directly on the comet.
1. 250mm/5.6
2. 750mm/5 (Newtonian + coma corrector) (with satellite trail)
58K
Observer: Roman Fangor
Location: Mariew / Kampinos Forest, Poland
Date: April 1, 1997 20:15 UT
Lens: PANCOLAR 2/50. Film: EKTACHROME 1600 ASA. Exposure: 2 min.
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Observers: Salvador Sanchez, Antonio Garcia
Location: Observatorio Astronomico de Mallorca, Costitx, Spain
Date: April 1, 1997 20:18, 20:39 UT
The images the sum of 25 red filter 0.3 sec images obtained with the C14 (35cm diameter) telescope at f/11 and an ST-6 CCD camera.
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Observer: Hartwig Luethen
Location: Hamburg, Germany
Date: April 1, 1997 20:20 UT
Camera: Celestron Schmidt-Camera (f=225mm, f//1.65). Film: Ektagraphic HC . Exposure time 15 min.
53K
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Observer: Jan Vesely
Location: Hradec Kralove, Czech Republic
Date: April 1, 1997 20:23-21:02 UT
First image is taken by 200 mm refractor f/17.5 at prime focus with CCD camera PixCel 255. Field of view is 3.2x2.5 arcmin. Exposure lasted 10 seconds. The second image is the same exposure, but the image was log-scaled
Third image is taken through photographic lens 2.8/80 with CCD camera PixCel 255. 30 sec. Field of view is about 2x1.5 degs. The image was log-scaled.
The last image is taken by CCD PixCel 255 and photographic lens 4/300. Filed of view is 37x28 arcmin. 60 sec. exposure
11K
Observer: Fred Wehner
Location: Kaiserslautern, Germany
Date: April 1, 1997 20:30 UT
The first image is taken with a Pentax 1:1.4 50mm on Kodak Tri-X-Pan
with 25 sec exposure time.
The 2nd images is taken with a Pentax 1:2.5 200mm on Kodak Tri-X-Pan and
15 sec exp. time.
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Observer: Thierry Moreau
Location: Tours, France
Date: April 1, 1997 20:30 UT
20 sec. exposure, 90 mm lens at f3.5, Fujichrome 800 ISO SuperG.
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Observer: The Isaac Newton Group of Telescopes
Location: Roque de Los Muchachos Observatory, La Palma, Spain
Date: April 1, 1997 20:33 UT
The first picture is the sum of four 120s exposures using a narrow band filter centered at 618 nanometers. Note how the dust tail is curved.
The second picture is the sum of four 120s exposures using a narrow band filter centered at 555 nanometers. The ion tail isn't visible because the 555nm filter is used to observe the molecule C2.
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Observer: Jeremy Chapple
Location: Bristol, England
Date: April 1, 1997 20:35 UT
Drawing of Comet Hale-Bopp. Instrument 4inch SCT, Mag x40, Seeing 3.
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Observers: Alessandro Dimai, Davide Ghirardo, Piergiorgio Cusinato
Location: Col Druscie Observatory, Cortina d'Ampezzo, Italy
Date: April 1, 1997 21:07 UT
Two images of the Hale Bopp comet taken on April 01.88 U.T with a Tele 300 mm f/2.8, exp. 2' - 35 mm. lens f/2.8, exp 1'.
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Observer: Laurent Drissen
Location: Camp Mercier, Reserve Faunique des Laurentides, Canada
Date: April 1, 1997 21:15
50 mm (Minolta X-700), open at f/1.7. Exposure time: 25 seconds. Film Fuji 800 Super G plus.
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Observer: Frans Frenken
Location: At Goes, The Netherlands
Date: April 1, 1997 21:45 UT
Nikon FM, 50/1.2, 21 seconds, Fuji 800 SG.
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Observer: Xavier Verians
Location: Brussels, Belgium
Date: April 1, 1997 22:00-23:30
These images were taken on a Fuji 800 Super G Plus film with a Canon EOS 500 on a static tripod.
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Observer: Philippe Demoulin
Location: Morville, Durbuy, Belgium
Date: April 1, 1997 22:15 UT
Lens: 29 mm at f/2.8. Exposure time 30 seconds. Film Fujicolor SG800.
14K
Observer: Pierre Arpin
Location: Montreal, Canada
Date: April 1, 1997 23:30 UT
A Fuji Sensia ISO 100 color slide film with a 50 mm objective and contrast enhanced with LView Pro.
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Observer: Mike Broussard
Location: ???
Date: April 1, 1997 23:35 UT
Kodak Royal Gold 1000 ISO and a 25 sec exposure. The lens used was a 50mm f/1.8 and the camera was mounted on a tripod.
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Observer: Jerry Lodriguss
Location: Cassel Observatory, New Buffalo, Pennsylvania
Date: April 2, 1997
Comet Hale-Bopp is show here, one day after perihelion. Photo taken with a Nikon 400mm F/2.8 ED lens on unhypered Kodak Ektapress Multispeed 640 PJM film, 4 minute exposure.
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Observer: Bill Hutchinson
Location: Alaska
Date: April 2, 1997
Nikon N90 50mm at f2.0, 25 second exposure on Fuji 400HG.
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Observer: Glenn Banack
Location: Camrose, Alberta, Canada
Date: April 2, 1997
The photos were taken with a 35mm cam. 50mm lens.
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Observer: Rett Alonzi
Location: Lansing, Kansas
Date: April 2, 1997
50mm f2, Fujii 800 film. Multiple (3) - 10 second exposures, 7 minutes between exposures.
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Observer: Ralph Marrero
Location: New Jersey
Date: April 2, 1997
Minolta X-700 with a 70-200 mm lens. The film used was Kodak 100. Exposure time was 30 sec.
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Observer: Terry Acomb
Location: Needles Overlook, Utah
Date: April 2, 1997
Ektapress 1600 film, 50 mm lens, fixed tripod, about 30 seconds.
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Observer: Serge Lavoie
Location: Rawdon, Quebec, Canada
Date: April 2, 1997
First image taken on April 2nd, with a lens of 400mm, f: 6.3 72mm of diameter, with Kodak 400 a.s.a. it was a 5 minutes exposure. Second image taken on April 2nd, with the 135mm lens, same film, it is a 5 minutes too.
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Observer: Rob Adkins
Location: Spruce Knob, West Virginia
Date: April 2, 1997
odak 1000 Gold and a 30 sec. exposure (unguided) with a Canon AE-1 and a 50mm lens at f 2.8.
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Observer: Bob Wykle
Location: Franklin, North Carolina
Date: April 2, 1997
A Nikon FE2 was used with Kodak Gold 400 at f1.8 for 20 seconds.
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Observer: Rick Leies
Location: Conn, Ontario, Canada
Date: April 2, 1997
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Observer: Mike Hovis
Location: Sequim, Washington
Date: April 2, 1997
200 mm lens.
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Observer: Denis Bergeron
Location: Quebec, Canada
Date: April 2, 1997 00:00 UT
Meade SCT 10" F10 (FL:2500mm). I used a CCD camera SBIG ST6 and have taken 39 images exposed 1 sec each (Total exposure=39 sec). All the 39 images were added and processed by unsharp masking and other processing technics.
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Observers: Alberto Quijano Vodniza, Luis M. Quinones
Location: Mayaguez, Puerto Rico
Date: April 2, 1997 00:30:07 UT
The image was taken with a ST-6 CCD camera through a 5 inch, F10 reflector. 5 sec exposure. The field of view is 23.1 X 17.4 arc min.
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Observer: Ralph Pass
Location: Andover, Massachussetts
Date: April 2, 1997 00:52, 01:10 UT
The first image is a two second exposure of the coma. A Meade Pictor 416 was attached to a Meade 10" F/6.3 telescope. The image was corrected with a dark field, unsharp masked, and logarithmically stretched.
The second image is three 20 second exposures of the comet. A 28mm F/3.5 lens was stopped to F/5.6. A Meade Pictor 416 was used to capture the image. A bilinear factor was used to reduce the effects of light pollution and the result image was logarithmically stretched.
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Observer: Charles Fredrickson
Location: 20 Mile Bend, Florida
Date: April 2, 1997 01:00 UT
50 mm lens @ f/2, Kodak Royal Gold 1000 film, approx. 40 sec. exposure, piggybacked on SCT.
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Observer: Fran Kittek
Location: Easton, Pennsylvania
Date: April 2, 1997 01:00 UT
Fuji 800g, 1 minute exposure, Nikon 200mm f/2 lens, mounted piggy-back on a 10inch SCT.
5K
Observer: Jayn Delancey
Location: Marietta, Ohio
Date: April 2, 1997 01:00 UT
Minolta x370 camera, a 300 mm lens set at 5.6 for 20 sec.
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Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: April 2, 1997 01:00-02:00 UT
3 10 second images have been summmed and combined in this image of Hale Bopp, obtained using a blue filter and a 12 inch Maksutov telescope. The images has been dark subtracted and flat fielded,and a false colour pallate applied using Mira.
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Observer: William Griffiths
Location: Marietta, Ohio
Date: April 2, 1997 01:00 UT
Camera is Canon A2E with 1000 speed Kodak Royal Gold film Exp. time is = from 10 to 30 sec. with lens set at from 3.5 to 5.6.
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Observer: John Chumack
Location: Dayton, Ohio
Date: April 2, 1997 01:03-01:45 UT
1. Taken with a 3" F6 refractor on Royal Gold 1000 for 5 minutes at 01:03 U.T. on 4-2-97. This shows the individual Ion streamers.
2. 100mm lens @F4, 5 minutes on Royal Gold 1000, 01:15 U.T. 4-2-97 this image shows The Famous Double Cluster in Perseus as well.
3. 135mm lens @F4 for 5 minutes on Royal Gold 1000, 01:15 U.T. 4-2-97 a very nice image.
4. 80mm medium format@ F4 over the city PPF 400 8 minutes. at 01:45 U.T. 4-2-97
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Observer: Donato O. Cacciapaglia
Location: Blacksburg, Virginia
Date: April 2, 1997 01:12 UT
Exposure was 15 sec at f/3.2 using F 70 mm and Fuji 1600 film.
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Observer: Jean Pierre Couture
Location: Near Montreal, Canada
Date: April 2, 1997 01:15 UT
Camera: Topcon Lens: Tamron zoom 80-250 set at 80mm at 3.8 Film: Fuji 1600 HG Exposure: 90 "steamboats" unguided
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Observer: Bob Pinkham
Location: Leesburg, Virginia
Date: April 2, 1998 01:30-02:15 UT
Olympus OM-1 w/50mm lens set at f1.8 and a 20 sec exposure.
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Observers: Yvan Bourassa, Dominique Beauchamp, Jonny Gauvin
Location: Observatoire Alphonse-Tardif, St-Neree, Quebec, Canada
Date: April 2, 1997 01:30 UT
We used the Schmidt Camera of Observatoire Alphonse-Tardif. We exposed for 45 sec on PPF ISO 400 processed with C41.
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Observer: Thomas Collin
Location: Parc de la Mauricie, Quebec, Canada
Date: April 2, 1997 01:30 UT
These images were taken on Fujicolor 400 using a manual equatorial table. The first one is a 20 second exposure with a 50mm lens. You can see M31, the Andromeda galaxy in the trees. The second picture is a 2 minute exposure with a 50mm lens. The third one is a 5 minutes exposure with a 135mm lens.
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Observer: Dan Pfeiffer
Location: Euclid, Ohio
Date: April 2, 1997 01:30 UT
50mm, f2, about 90 seconds, Fuji Super HG 400.
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Observer: Norman Peterson
Location: Derwood, Maryland
Date: April 2, 1997 01:30 UT
Exposure was 9 sec at f/1.2, 75 mm fl, EDC1000U CCD camera. Dark current subtraction, contrast enhancement, aspect ratio corrected.
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Observers: Frederic Pelletier, Pierre Thibault
Location: Aster's Observatory, Quebec, Canada
Date: April 2, 1997 02:00 UT
5 minute exposure on a Kodak 400. A 135mm lens was used.
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Observer: Tom Doe
Location: Pine Knoll Shores, North Carolina
Date: April 2, 1997 01:00 UT
Nikon n-90 camera with Nikon 24-50mm zoom at about 35mm, f-3.8 for 60 seconds.
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Observer: Gary Holmes
Location: Near Tuscaloosa, Alabama
Date: April 2, 1997 02:05 UT
10-minute exposure on hypered Fuji 800, finally got a good rendition of the ion tail streamers. Lens: 200mm at f/3.5
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Observer: Paul Gitto
Location: Arcturus Observatory, Pine Barrens of Whiting, New Jersey
Date: April 2, 1997 02:36 UT
2 sec. exp. of Comet Hale-Bopp, logscaled, unsharp masked, and edge enhanced. Meade 10" LX 200 @F/3.3 Pictor 416 CCD.
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Observers: John Strohsacker, Sarah Maher, Henry Ebert
Location: Loch Raven Reservoir, Towson, Maryland
Date: April 2, 1997 02:45 UT
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Observer: Tom Bowers
Location: Indiana
Date: April 2, 1997 03:00 UT
Canon T-90 85mm 2.8 Kodak Gold 100 25sec.
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Observer: Michael Warner
Location: Tucson, Arizona
Date: April 2, 1997 03:02 UT
Celestron C5+ telescope, CookBook245LDC CCD Camera, 1.5 second exposure, Post-Processing included sharp filter and Gamma correction ( 0.5 ) to enhance jets and ripples near the nucleus, the field of view = 18'x13'.
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Observer: Craig Bryson
Location: Lookout Mountain, Gadsden, Alabama
Date: April 2, 1997 03:55 UT
Canon AE-1 Program with 135mm set at f2.8 and Kodak 1000 film for 30 seconds Reflection in water.
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Observer: Lynn Umbarger and George Ford
Location: Bad Axe, Michigan
Date: April 2, 1997 04:00 UT
Camera: 35mm Konica SLR(on a fixed tripod)
Film: Kodak Gold Plus 400 ASA
Lens: 50mm
f-stop: 1.7
Music: Brian Eno and Robert Fripp
Beer: Bud Light/Labatts Blue(medisanal purposes)
#1 30 second exposure
#2 60 second exposure
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Observer: Bob Perovich
Location: Seattle, Washington
Date: April 2, 1997 04:00 UT
Camera: Nikon F3. Lens: Nikkor 50 mm f1.2. Film: Ektachrome P1600. Exposure 4 to 8 seconds.
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Observer: Bill Robicheaux
Location: Seattle, Washington
Date: April 2, 1997 04:10 UT
Ten minute exposure on ASA 400 film through the camera's 50mm lens (250W X 275H).
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Observer: Dale Ireland
Location: Silverdale, Washington
Date: April 2, 1997 04:30 UT
Two color photos of Hale-Bopp taken 0430UTC 2 April, Both Fuji 800g, 1 minute. The wide angle 58mm Noct f/1.2, the close-up 200mm f/4.
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Observer: Mack Frost
Location: Cody, Wyoming
Date: April 2, 1997 04:30 UT
The exposure was for 11-minutes on Fuji 800 Super G+ using a 70-210mm/f3.5 lens set at 210mm wide open, and guided by means of piggybacking on a Meade 2080 LX10. The image was scanned off a matte print and manipulated to enhance the blue gas-plasma tail, and slightly increase the contrast.
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Observer: Fred Stauffer
Location: Gondiswil, Switzerland
Date: April 2, 1997 04:45 UT
Image taken by Olympus-2n, 50mm lens f=1.4, Kodak Ektar 1000, 10 sec.
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Observer: Norman Azose
Location: Rattlesnake Lake, Washington
Date: April 2, 1997 05:00 UT
Images of comet Hale-Bopp taken with a Minolta SRT-101 35mm camera on a fixed tripod with a cable release using Kodak Royal Gold 1000 film.
First image: 58mm f/2.8, 30 seconds.
Second image: 135mm f/2.8, 15 seconds.
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Observer: Allen Bell
Location: Wells, Maine
Date: April 2, 1997 07:40, 07:50 PM
The first image was taken using a Nikon F3 with a 105mm f2.5 Nikkor lens. Exposure was 15 seconds at f/2.5. Film was Fujicolor 1600 pushed one stop.
The second image was taken using a Nikon F3 with a 105mm f2.5 Nikkor lens. Exposure was 25 seconds at f/2.5. Film was Agfachrome 1000 pushed one stop.
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Observer: Herman Mikuz
Location: Crni Vrh Observatory, Slovenia
Date: April 2, 1997 19:07-19:24 UT
Color image of comet Hale-Bopp, taken with 19-cm, f/4 Flat-field S-C camera and Kodak Vericolor 400 film (6x7 format).
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Observers: Vadim Burwitz, Klaus Reinsch, Juergen Krieg, Harald Schink
Location: Hainberg Observatory, Goettingen, Germany
Date: April 2, 1997 19:24-19:40 UT
Stacked images obtained from two series of short (3-9 sec) exposures taken with an ST-6 CCD camera at the 25 cm, f/16 refractor of the Hainberg Observatory at Goettingen, Germany. The exposures combined to the first image have been taken between 19:24 and 19:40 UT on the evening of April 2, 1997. The image is shown with a logarithmic intensity scale. The second image is a contrast enhanced version obtained by applying an adaptive Laplace filter to the first image.
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Observer: Lorenzo Comolli
Location: Mount S. Martino, Italy
Date: April 2, 1997 19:30-20:00 UT
1. 2 min exposure, Scotch Chrome 3200 ISO, 200 mm (f/3.5).
1m30s exposure, Scotch Chrome 3200 ISO, 55 mm (f/2.8). The Ion Tail is on the Double Cluster in Perseus.
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Three series of ccd-images of comet Hale-Bopp were made at the prime focus of a Celestron C11 at 19:53 UT. Exp. times were 8, 4, 2 seconds. Each image was combined of 7 individual exposures. In this hazy night only image processing tricks could bring out the the wavy structure in the vicinity of the comets core.
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Observer: Josep Trigo
Location: Benicassim (Castellon), Spain
Date: April 2, 1997 19:59:50-20:16:40 UT
1. 210mm telelens.
2. 100mm telelens.
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Observer: Arto Oksanen
Location: Finland
Date: April 2, 1997 20:00 UT
The first image was taken soon after sunset with 24 mm wide-angle lens f2.8, 30s, no guiding, film: Kodak Ektaprint Muti-Speed.
The second images was taken later on the same night with 180mm f2.8 tele, exp. 5 min, Kodak Muti-Speed.
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Observers: Oliver Krause, Niklas Goerke
Location: Pass Bernina, Switzerland
Date: April 2, 1997 20:00-20:35 UT
All images were exposed on TMAX 400 pushed to 800 ASA. Guiding was done directly on the comet.
1. 85mm/2.8
2. 250mm/4.5 . Enhanced contrast to show faint tail structures.
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Observer: Herve Choplin
Location: Tours, France
Date: April 1, 1997 20:00, 20:15 UT
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Camera: Olympus OM1 with a 200mm f/3.5 lens
Exposure time: 20s & 30s
Film: Konica 3200 SR-G Professional
Comments: enhancement of cyan and blue colors via Adobe Photoshop
to see details in plasma tail.
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Observer: Josep Trigo
Location: Benicassim (Castellon), Spain
Date: April 2, 1997 20:07:05-20:09:26 UT
Image obtained with a 135mm lens. The film was Kodak Ektachrome Panther P1600x colour slides.
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Observer: Fred Stauffer
Location: Wyher Castle near Ettiswil, Switzerland
Date: April 2, 1997 20:50-21:50 UT
Camera: Olympus-2n, first image with 35mm/f=2.8 lens, the other images with 50mm/f=1.4 lens. Fujicolor 800 SG+. Exposure time 5-20 sec.
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Observer: Jean Dumont
Location: France
Date: April 2, 1997 21:00 UT
300mm lens opened at F/4, on a Fujicolor SG 800 film. The camera was mounted in parallel on a CG11. The exposure was of 6 min.
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Observer: Allen Bell
Location: Wells, Maine
Date: April 2, 1997 23:45 UT
Image taken with a Nikon F3 using a 105mm f 2.5 Nikkor lens. Fuji ISO 1600 print film.
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