13K
Observer: Rett Alonzi
Location: Powell Observatory, Louisburg, Kansas
Date: May 3, 1997
50 mm, f2, 20 second exposure on Kodak 400 Gold film.
24K
Observer: Herman Mikuz
Location: Island of Cres, Croatia
Date: May 3, 1997
300mm, f/4 Asahi Pentax camera lens (6x7) and Kodak Vericolor 400 film.
7K
Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: May 3, 1997 00:04:52 UT
The first image was taken with a ST-6 CCD camera through a 5 inch, F10 reflector. 5.0 sec exposure. The field of view is 23.1 X17.4 arc min.
The second image is in false color. Image was processed with Mira software.
145K
Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: May 3, 1997 00:43-01:24 UT
1. 37 x 30 second images of Hale Bopp obtained between 00:43 and 01:24 UT using a blue filter and a 12 inch Maksutov telescope has been dark subtracted and flat fielded,and a false colour pallete applied.
2. 37 x 30 second exposures of Hale Bopp, taken through a blue filter have been combined and processed subtracting a 20 by 20 pixel masked version from 105% of the original image.
28K
Observer: Mike Garnsey
Location: Pierrepont Manor, New York
Date: May 3, 1997 00:55-01:25 UT
Camera/Film: Pentax, 40mm, Fuji Super G+ 800, 20 seconds.
63K
Observer: Thomas Collin
Location: Parc National de la Mauricie, Quebec, Canada
Date: May 3, 1997 01:00 UT
Fujicolor 400 film. First image is a 20 seconds exposure with a 50 mm lens. Second image is a 4 minutes guided exposure with a 200 mm lens.
53K
Observer: Jean-Luc Filion
Location: 80 km North of Montreal, QC, Canada
Date: May 3, 1997 01:34-01:39 UT
1- Canon FTB camera equipped with a 50mm F1.8 lens. Exposure time was 2 minutes 30 seconds on ISO 400 film. The camera was mounted on an equatorial platform with a stepper motor.
2- 200mm F3.3 telephoto lens using the same setup as above. Exposure time: 4 minutes.
30K
Observer: Geoff Chester
Location: Merck Forest, East Rupert, Vermont
Date: May 3, 1997 01:45 UT
50mm f/1.8 Series-E Nikkor lens, and is a 15-second exposure on PPF-400.
28K
Observer: Patrick Dyer
Location: San Antonio, Texas
Date: May 3, 1997 02:04, 02:12 UT
1. Pentax K-1000, f/2, 50-mm with 2x teleconverter. Fuji 800, 30 seconds piggyback on clockdriven Criterion RV-6.
2. Pentax K-1000, projection from 25-mm eyepiece on Criterion RV-6 (6", f/8 Newtonian). Kodacolor 400, 10 seconds clockdriven ("hat trick"), west at top, south at right.
6K
Observer: Leon Reneau
Location: Santa Cruz Mountains, California
Date: May 3, 1997 04:20, 04:35 UT
90mm, f/2.8, 10 min, Fuji Super G 800, barndoor tracker.
48K
Observer: Mike Cecile
Location: Calgary, Alberta, Canada
Date: May 3, 1997 04:45, 05:00 UT
1. Pentax 50 mm lens, f1.8, tripod, 30 secs, Ektachrome 400 pushed twice.
2. Pentax 50 mm lens, f1.8, piggy-back guided, 30 secs, Ektachrome 400 pushed twice. Ion tail just visible and still in its normal position.
23K
Observer: Michael Horn
Location: Injune, Queensland, Australia
Date: May 3, 1997 08:35 UT
Exposure: 15 seconds with 50mm lens, f1.7, Fuji G-800.
73K
Observer: Kevin Parker
Location: Mackay, Queensland, Australia
Date: May 3, 1997 18:45PM
135mm f2.8 shot with fuji 400 film.
24K
Observer: Gianluca Masi
Location: Ceccano, Italy
Date: May 3, 1997 19:07-19:11 UT
1. Three frame mosaic, each frame 1 min exposure. Technical informations on the same picture. Vixen SP R-150S, 15 cm f/5 reflector telescope; CCD SBIG ST-7. Log scaled.
2. Shows the inner region, with dust waves. Technical informations on the same picture. Vixen SP R-150S, 15 cm f/5 reflector telescope; CCD SBIG ST-7; elaboration: QMiPS32.
3. The last one uses the Larson/Sekanina algorithm to extract hidden features. Technical informations on the same picture. Vixen SP R-150S, 15 cm f/5 reflector telescope; CCD SBIG ST-7; elaboration: QMiPS32.
28K
Observer: Michel Benvenuto
Location: Mont Chauve, France
Date: May 3, 1997 19:53 UT
50mm Nikon lens at F/D 2.8, in 15s on Ektar 1000 on a tripod.
77K
Observers: Francesca Lucentini, Marco Paolo Pavese
Location: Genoa, Italy
Date: May 3, 1997 22:00 PM
1. Kodak Gold 1000 ASA, camera NIKON F4, lens Nikon AFD 180mm F2.8, TIME 45 sec.
2. FUJI PROVIA 400 ASA, camera NIKON F4, lens Nikon AFD 16mm F.2.8, TIME 40 sec.
3. FUJI PROVIA 400 ASA, camera NIKON F4, lens Nikon AFD 35mm F.2.8, TIME 45 sec.
4. FUJI PROVIA 400 ASA, camera NIKON F4, lens Nikon AFD 50mm F.1.4, TIME 45 sec.
5. FUJI PROVIA 400 ASA, camera NIKON F4, lens Nikon AFD 50mm F.1.4, TIME 50sec.
60K
Observer: Loke Kun Tan
Location: Red Rock Canyon Park, California
Date: May 4, 1997
Pentax 6x7 camera was used with a 165mm f2.8 lens.
125K
Observer: Loke Kun Tan
Location: Red Rock Canyon Park, California
Date: May 4, 1997
This is one day after the comet crossed the plane of the solar equator where the sun's magnetic field exhibits large amounts of irregularity. Note the 'forking' of the ion tail further from the head of the comet. 8" f1.5 Celstron/Epoch Schmidt Camera.
65K
Observer: Takashi Nakashima
Location: Kumanmoto Civil Astronomical Observatory, Japan
Date: May 4, 1997
35mm F2.5, Fuji G-800, 20 second exposure.
13K
Observer: Chris Serio
Location: Wallingford, Connecticut
Date: May 4, 1997
Pentax MV F/2 50mm lens and iso/asa 200 film.
47K
Observer: Paul Cichocki
Location: Mojave Desert, Nevada
Date: May 4, 1997
50 mm lens, Minolta 35 mm camera, 25 second exposure, Fuji 800 super G plus print film.
12K
Observer: Daniel Henry
Location: Lacona, New York
Date: May 4, 1997
Fuji G800 w/50mm lens ~20sec.
26K
Observer: Mike Garnsey
Location: Pierrepont Manor, New York
Date: May 4, 1997 01:05 UT
Camera/Film: Pentax, 40mm, Fuji Super G+ 800, 20 seconds.
28K
Observer: Tim Forrest
Location: Broad Creek, Newport, North Carolina
Date: May 4, 1997 01:47-03:07 UT
32K
Observer: Patrick Dyer
Location: San Antonio, Tecas
Date: May 4, 1997 02:04, 02:12 UT
1. Pentax K-1000, f/2, 50-mm with 2x teleconverter. Fuji 800, 30 seconds piggyback on clockdriven Criterion RV-6.
2. Pentax K-1000, projection from 40-mm eyepiece on Criterion RV-6 (6", f/8 Newtonian). Kodacolor 400, 7 seconds clockdriven ("hat trick"). West at top, south at right.
54K
Observer: Glenn Ray
Location: Sealy, Texas
Date: May 4, 1997 02:08, 02:37 UT
12K
12K
16K
12K
11K
27K
63K
36K
17K
6K
47K
52K
26K
36K
73K
77K
43K
64K
41K
28K
31K
26K
18K
82K
First Image
Camera: Pentax 645 (6x4.5) 75mm f/2.8 @ f/4
Film: Kodak Pro 1000 (PMZ)
Exposure: 30 seconds, unguided
Notes: Note Aldebaran/Hayades near horizon. This was about an hour
after sunset.
Second Image
Camera: Pentax 645 (6x4.5) 200mm f/4
Film: Kodak Pro 400 (PPF), hypersensitized
Exposure: 4 minutes
Notes: North is right. Guided on comet nucleus.
34K
Observers: Dewey Vanderhoff, Mack Frost
Location: Polecat Bench, Wyoming
Date: May 4, 1997 04:00 UT
1967 Nikon F camera mounted with a Tokina 80-200mm f/2.8 ATX lens, and mated to the barrel of a Meade LX-20 SCT. Exposure was 7 mins wide open at f/2.8 on Fuji Super G 800, at 200 mm focal length.
65K
Observer: Frank Camacho
Location: Albuquerque, New Mexico
Date: May 4, 1997 04:00 UT
45-second exposure on Kodak Royal Gold 1000 film using an Albinar zoom lens at 70-mm and f/3.5 on a tripod mounted Pentax K1000 camera.
33K
Observer: Dave Schmahl
Location: Highway 79, Julian, California
Date: May 4, 1997 04:10 UT
50mm lens at f1.7, 1000 Kodak Gold, 20 sec exposure, unguided.
63K
Observer: Mike Cecile
Location: BearPaw Village, Canada
Date: May 4, 1997 05:00 UT
Tripod, Pentax 50mm lens at 1.8, 30 sec. exposure, 400 ASA Ektachrome pushed twice.
21K
Observer: Michael Horn
Location: Clermont, Queensland, Australia
Date: May 4, 1997 08:54 UT
Exposure: 4 minutes prime focus 1350mm, f4.5, Fuji G-800.
84K
Observer: Michael Horn
Location: Clermont, Queensland, Australia
Date: May 4, 1997 09:07 UT
Exposure: 4 minutes 135mm, f2.8, Fuji G-800.
87K
Observer: Kevin Parker
Location: Mackay, Queensland, Australia
Date: May 4, 1997 18:45 PM
400mm f5.6 shot on May 4th with fuji 400 film 12 minutes.
22K
Observer: Rainer Timm
Location: Lochham, Germany
Date: May 4, 1997 19:50 UT
Nikon EM, Nikkor 50mm f1,8, 15 sec Kodak Elite II 400 Slide-Film.
41K
Observer: Martin Mutti
Location: Stockerenweg 1, Wichtrach, Switzerland
Date: May 4, 1997 20:16:20-20:23:50 UT
31K
Photo Lens: Minolta MD Macro 100mm f/4
CCD-Camera: SBIG ST-7
Size: 4 deg x 2.6 deg
IR Stop + green filter
Image manipulation: dark substract, flat field, log enhance
Imaging software: CCDOPS36, PRISM
62K
Observer: Emmanuel Vigneron
Location: Chateau Thierry, France
Date: May 4, 1997 21:00 UT
Canon EOS 100 50mm 55 s T MAX 400 ASA.
7K
Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: May 4, 1997 23:48:49 UT
The first image was taken with a ST-6 CCD camera through a 5 inch, F10 reflector. 10.0 sec exposure. The field of view is 23.1 X17.4 arc min.
The second image is in false color. Image was processed with Mira software.
6K