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Comet Hale-Bopp Images - April 1997

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Observers: Jay Edwards, George Normandin, Lee Shelp
Location: Kopernik Space Education Center, Vestal, New York
Date: April 11, 1997

80MM Brandon refractor at prime focus. Approx. 6 Mins. On 400 Fuji.


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Observer: Bill Hutchinson
Location: Kenai National Wildlife Refuge, Alaska
Date: April 11, 1997 UT

The comet has crossed the path taken by Hyakutake one year earlier. It now lies in nearly the same spot on the same date 365 days later. The similarities in these two photos taken one year apart are eerie. Nikon N90 50mm lens at f 2.0 25 seconds on Fuji 400 HG.


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Observer: Mark Starzomski
Location: Peggy's Cove, Nova Scotia, Canada
Date: April 11, 1997

Trees in the foreground were lit by a flashlight. 30 sec exposure, with 50 mm lens, Black's 400 speed film, at f/2.


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Observer: Don Koenigsberg
Location: Bryn Mawr, Pennsylvania
Date: April 11, 1997

Image taken with a Celestron 8. I used fuji 800 film with a 1 minute exposure at prime focus.


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Observer: Thommy Backstrom
Location: Sweden
Date: April 11, 1997

2.8 / 100 tele-lens, 120 sec exposure (guided with my refractortelescope), 400 ISO Fujicolor film.


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Observer: Guy Westcott
Location: Winnipeg, Manitoba, Canada
Date: April 11, 1997


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Observer: Lasse Olsson
Location: Uddevalla, Sweden
Date: April 11, 1997 00:00 UT

Film Fuji 400 Canon EOS 1 30 sek. 80-200.


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Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: April 11, 1997 00:30-01:00 UT

First image is 28 x 20 second images of Hale Bopp obtained between 00:30 and 01:00 UT using a blue filter and a 12 inch Maksutov telescope has been dark subtracted and flat fielded,and a false colour pallate applied.

Second image 28 x 20 second exposures of Hale Bopp, taken through a blue filter have been combined and processed by subtracting a 5 by 5 pixel masked version from 105% of the original image. 1st exposure started at 00:30 UT on April 11th, last exposure started at 01:00 UT.


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Observer: Jan Curtis
Location: Fairbanks, Alaska
Date: April 11, 1997 00:51 AM

Nikon FM2 w/35 mm Nikkor lens at f/2.0 on Royal Gold Kodacolor 400 film for 25 seconds. Comet almost lost in aurora. The northern lights resulted from a major solar flare on 8 Apr as reported in world news.


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Observer: Thomas Collin
Location: Parc National de la Mauricie, Quebec, Canada
Date: April 11, 1997 01:00 UT

28 mm lens on Fujicolor film.


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Observer: Jim Yolda
Location: Vint Hill Farms Station, Warrenton, Virginia
Date: April 11, 1997 01:45, 03:00 UT

1. Hasselblad 500C/M camera, 80mm f2.8 @ 25 seconds, Kodak PPF 400.

2. Nikon F2AS camera, Nikkor 80-200mm f4 @ 20 seconds, Kodak Royal Gold 1000.


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Observer: Tom Whitney
Location: Burlington, Vermont
Date: April 11, 1997 02:00-02:40 UT

1. 50mm f2 lens, Fuji 800SG and 30 second exposure from tripod.

2. 38mm f3.8 setting of zoom lens, Fuji 800SG and 15 second exposure from tripod.

3. 38mm f3.8 setting of zoom lens, Fuji 800SG and 15 second exposure from tripod.


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Observer: Bill Drennon
Location: Visalia, California
Date: April 11, 1997 03:15 UT

Cannon 50mm lens with Fuji 1600 color print film at f/2.8 for 30 seconds. The camera was rested on a granite bolder facing northwest.


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Observer: Gary Cervo
Location: Los Altos, California
Date: April 11, 1997 04:00 UT

200mm, 5min., f/2.8, PPF-400 with barndoor tracker.


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Observer: Ron Baalke
Location: Whitaker Peak, California
Date: April 11, 1997 04:10 UT, 04:14 UT

Both images taken with a Canon A2 mounted on a tripod with a 100mm/f2.8 lens, unguided. Film used is Fujicolor Super HG 1600. First image is a 40 second exposure, second image is a 30 second exposure.


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Observers: Mike Garnsey, Maureen Garnsey
Location: Pierrepont Manor, New York
Date: April 11, 1997 04:15 UT

Pentax w/ 40mm lens, Fuji Super G 800, 20-30 seconds.


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Observer: Uwe Schmidtmann
Location: Brunstein Observatory, Kreiensen, Germany
Date: April 11, 1997 19:11-20:01 UT

The following composite of the comet Hale-Bopp contains two ccd-images. Both were taken with an ST5 CCD camera.

The left image was taken using a Maksutov telefoto lens with 10cm apperture and f/10 (1m focal length). The Maksutov was used in prime focus. 4 images of 0.75 seconds have been added using the track and accumulate mode from CCDops, the camera control software. The upper image is scaled logarithmically, while the lower one shows the core region with extremly enhanced contrast. To achieve this, two images have been created by shifting the original image by 3 pixel in vertical direction - one up, the other one down. Then the original image was multiplied by two and both shifted images were subtracted.

The right image has been taken using a 24mm canon lens. The field of view is abt. 30 arcminutes.


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Observer: Frank Coburger
Location: Eisenach, Thuringian Forest, Germany
Date: April 11, 1997 19:37 UT

40 sec 2.8/80 Pentacon SIX Kodak Vericolor 400.


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Observers: Jose Manteca, Albert Sanchez
Location: Barcolona, Spain
Date: April 11, 1997 20:03-20:05 UT

1. 20:03:13s TELESCOPIO: MEADE S/C 10" F:6,3 CCD: SX FILTER V TIME: 2s.

2. 20:04:40s TELESCOPIO: MEADE S/C 10" F:6,3 CCD: SX FILTER V TIME: 1s.

3. 20:05 TELESCOPIO MEADE S/C F:10 CCD PIXEL 211 NO FILTER TIME: 1s


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Observer: Astronomy Class (Students - Age 16-18)
Location: Sonderborg Observatory, Island of Als, Denmark
Date: April 11, 1997 20:31 UT

Comet Hale Bopp at Algol and Rho Persei 135 mm f/3,5 camera, 180 Sec photo, Fuji sG800 +, 2031 UT + 3 min. Faint meteor to the left.


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Observer: Bernd Schatzman
Location: Denmark
Date: April 11, 1997 20:44 UT

Comet Hale Bopp at Algol and Rho Persei 300 mm f/6.0 camera, 900 Sec photo, Fuji sG800 +, 2044 UT + 15 min.


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Observer: Dr. Malte Scholz
Location: Tenerife, Canary Islands, Spain
Date: April 11, 1997, 21:30 UT

50 mm F1.4, 20 s exposure time on Fujicolor Super G 400.


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Observers: Casey Lisse, Yan Fernandez, Joseph Hora, Bill Golisch, Mike A'Hearn
Location: NASA Infrared Telescope Facility, Mauna Kea Observatory, Hawaii
Date: April 12, 1997 UT

11.7 micron filter (10% bandwidth). North is up and East to the left, and the image is 44 arcsec on a side. This is a single 6 second integration. The image clearly shows the spiral structure towards the Sun, due to a jet from the comet's surface rotating with the nucleus in an ~11 hour period. The 11.7 um filter contains emission at the peak of the ~300K greybody and silicate emission features from the comet's dust. Hale-Bopp is one of the dustiest comets on record.


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Observer: Sean Campbell
Location: Cody, Wyoming
Date: April 12, 1997

All exposures were on Fuji Super-G800 for 50 sec. at f/1.7 to f/2.8.


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Observer: Tom Polakis
Location: Gillespie Dam, Arizona
Date: April 12, 1997

1. Kodak Elite II 400 film with a 28 mm lens and a 15 second exposure.

2. 15mm fisheye lens at f/2.8 for 30 seconds on Elite II 400 film.

3. 55mm lens, f/2, 15 seconds, Elite II 400 film.


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Observer: Jose Fernando Barral Caballero
Location: Victoria City, Mexico
Date: April 12, 1997

Camera Praktica LTL-3, Kodacolor ASA 400. Lens 35 mm, f2.5, 2:30 min.


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Observer: Christopher Richey
Location: Coffee City, Texas
Date: April 12, 1997

Fuji 800 speed film with a 70mm lens.


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Observer: Gordon Mutton
Location: Dorset, England
Date: April 12, 1997 00:00 UT


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Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: April 12, 1997 00:00:05

The first image was taken with a ST-6 CCD camera through a 5 inch, F10 reflector. 1.0 sec exposure. The field of view is 23.1 X 17.4 arc min.

The second image was taken with a ST-6 CCD camera through a 16 inch, F10 reflector. 0.5 sec. exposure . The fiel of view is 7.3 X 5.5 arc min.


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Observer: Denis Bergeron
Location: Quebec, Canada
Date: April 12, 1997 00:40 UT

Meade SCT 10" F10 (FL:2500mm). I used a CCD camera SBIG ST6 and have taken 9 images exposed 1 sec each (Total exposure= 9 sec). 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. The image is very similar to what we can see now when we observe Hale-Bopp with a telescope at high magnification. Take a note about the spiral form of the jet near the false nuclei. The streak in the images is caused by a star trail in the sky due to the comet movement. All images were added (AVERAGE) with the comet in registration.


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Observer: Michael Boschat
Location: Halifax, Nova Scotia, Canada
Date: April 12, 1997 00:55, 00:58 UT

30 sec. exposure on Kodak Gold 400 with Zenit-B 58mm f/2 camera. A 20 sec. exposure on Kodak Gold 400 with a Zenit-B 200mm f/3.3 telephoto.


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Observer: William Griffiths
Location: Marietta, Ohio
Date: April 12, 1997 01:00 UT

Canon T70 camera with a 28mm lens set at 2.8 for 20 sec.


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Observer: Glenn French
Location: Brattleboro, Vermont
Date: April 12, 1997 02:00 UT

50mm f1.8 piggybacked on a Celestron SCT.


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Observers: Dewey Vanderhoff, Mack Frost
Location: Cody, Wyoming
Date: April 12, 1997 03:15-06:00 UT


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Observer: Mike Cecile
Location: Calgary, Alberta, Canada
Date: April 12, 1997 04:30 UT

1. 50 mm lenses, f1.8 3 min. guided exposure, 400 ASA Ektachrome slide film.

2. 10 inch Meade, f5.6 6 min. guided exposure, 400 ASA Ektachrome slide film.


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Observer: Fraser Thomson
Location: Near Mt. Shasta, California
Date: April 12, 1997 05:45 UT

Minolta XG-1, 45mm Rokkor lens, f2 aperture, ASA 1600 film, exposure time ~25 seconds.


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Observer: Bill Hutchinson
Location: Kenai National Wildlife Refuge, Alaska
Date: April 12, 1997 10:00 UT

Nikon N90 50mm lens at f 2.0 20 seconds on Fuji 400 HG


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Observer: Toni Scarmato
Location: Calabria, Italy
Date: April 12, 1997 18:45 UT

Reflex YASHICA Ob. 50 mm, f/1.7, Time Exposure 30 sec on KODAK Professional 400 ISO.


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Observer: Krzysztof Petrykowski
Location: Wroclaw, Poland
Date: April 12, 1997 19:30 UT

Practica MTL; 85mm lens; F=1,8; Konica VX200; 16 sec exposure.


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Observer: Dr. Malte Scholz
Location: Tenerife, Canary Islands, Spain
Date: April 12, 1997, 20:30 UT

50 mm F1.4, 15 s exposure time on Fujicolor Super G 1600.


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Observer: Rosalba Gelardi
Location: Claviere, Italy
Date: April 12, 1997 21:10 UT

Minolta X-300, Tamron 50mm lens, f4.5 aperture, ASA 1600 film, exposure time 30 secs.


If you would like to submit a new image to this home page, contact:
Ron Baalke
ron@jpl.nasa.gov

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