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Comet Hale-Bopp Images - April 1997

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Observer: Geoff Chester
Location: Alexandria, Virginia
Date: Late April 1997

10 second exposure on Kodak PPF-400 color negative film.


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Observer: Francesco Poli
Location: Florence, Italy
Date: April 1997

Kodak Gold 400, 35-40 secs. of exposure, with a 50mm Olympus camera.


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Observers: Giuseppe Menardi, Alessandro Dimai, Renzo Volcan, Davide Ghirardo
Location: Paso Giau, Italy
Date: April 29, 1997

50 mm. lens f/1,7, exp. 90".


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Observer: Kensaku Kitazawa
Location: Kyoto, Japan
Date: April 29, 1997


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Observer: JJ Whittington
Location: Organ Pipe Cactus National Monument, Arizona
Date: April 29, 1997

1. Camera: Pentax MX w/50mm f/1.7 lens. Film: Kodak PJM Multispeed. Exposure: f/1.7 for 10 min. guided on scotch mount.

2. Camera: Canon Elan II w/85mm f/1.8 lens. Film: Kodak PJM Multispeed. Exposure: 30 sec. at f/1.8.


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Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: April 29, 1997 00:09:44 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.


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Observer: Tim Forrest
Location: Newport, North Carolina
Date: April 29, 1997 00:30-00:55 UT

1. 25 seconds 135mm f 2.8 on Kodak Royal Gold 1000.

2. 35 seconds 50mm f 2.0 KODAK Royal Gold 1000.

3. 35 seconds 50mm f 2.0 KODAK Royal Gold 1000.


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Observer: John Pane
Location: Imperial, Pennsylvania
Date: April 29, 1997 01:37 UT

35mm SLR camera on a fixed tripod, 50mm lens at f/2.0, Fuji Super G+ 800 film, composite of four 15 second exposures.


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Observer: Patrick Dyer
Location: San Antonio, Texas
Date: April 29, 1997 02:02 UT

Pentax K-1000, f/2, 50-mm. Fuji 800, 30 seconds piggyback on clockdriven Criterion RV-6.


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Observer: Frank Marotta
Location: White Rock Lake, Dallas, Texas
Date: April 29, 1997 03:05 UT

Equipment: Nikon F3HP with 50mm Nikkor set at f 1.4, 15 seconds. Film: Fuji 400 SG+.


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Observer: David McDavid
Location: Limber Observatory, Pipe Creek, Texas
Date: April 29, 1997 02:40-02:51 UT

This pseudocolor image is a composite of six 90 s exposures of the inner 7 arcmin of the coma of Comet Hale-Bopp, taken in blue light (Johnson B filter with polarizers) with a Photometrics CCD camera (Thomson 512 chip) on the 0.4 m telescope at Limber Observatory. North is up and east is left.


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Observers: Mark Stafford, Kay Brown
Location: Amra, Kansas
Date: April 29, 1997 02:45, 02:55 UT

Canon EOS 35mm camera using a 80-200mm lens at 135mm, Fuji SuperG 800 film, a 30 sec. exposure at f4.6. No tracking was used. Tripod mounted.


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Observer: Lerpong Rungrodnimitchai
Location: Boulder, Colorado
Date: April 29, 1997 04:30 UT

1. Nikon F90X, FUJI Super G Plus 800 shot at 1600. 60 mm Micro Nikkor set at f2.8 and 25 second exposure.

2. Nikon F90X, FUJI Super G plus 800 shot at 1600. 75-300 mm Nikkor lens, set at 100 mm, wide open and 25 second exposure.


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Observer: Mike Cecile
Location: Calgary, Alberta, Canada
Date: April 29, 1997 04:55 UT

Ektakrome 400, 50 mm lens, f1.8, 4 minute exposure.


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Observers: Francois Colas, Jean Lecacheux, Sylvie Jancart, Luc Henrard
Location: Pic du Midi Observatory, France
Date: April 29, 1997 20:35 UT

The newly discovered tail of neutral sodium atoms (see IAUC 6631 and Web pages made by the Isaac Newton Group, Canary Islands) is a major new feature, never seen in bright comets in the past, excepted during some hours in the sungrazing ones, but under very extreme temperature conditions that comet Hale-Bopp does not experience. We used a 50-mm F/1.4 Pentax photographic objective , a narrow band interference filter and a HiSiS-44 CCD camera (equipped with a Kodak 1536x1024 chip) to observe the new sodium tail of the comet. The field of view was not less than 15x10 degrees. The bandpass centered on the yellow D line doublet was 2.8 nm wide. The present image is a 32 minutes integration. North is up. The sodium tail is the narrow 8 degrees long feature near p.a. 55 degrees. Do not confuse it with the ion tail, of which general orientation is roughly similar : in fact no ion emission seems exist in our filter bandpass.


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Observer: Alberto Quijano Vodniza
Location: Mayaguez, Puerto Rico
Date: April 29, 1997 23:39:09 UT

The first image was taken with a ST-6 CCD camera through a 5 inch, F10 reflector. 2.0 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.


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Observer: Rett Alonzi
Location: Lansing, Kansas
Date: April 30, 1997

1. Kodak 1000 film, 50 mm at f2, with a 25 second exposure after sunset 3. Kodak 1000 film, 100 mm at f3.5, with a 80 second exposure


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Observer: Eric Rosen
Location: Saguaro National Park, Arizona
Date: April 30, 1997

Tripod mounted Pentax P30T 50mmF2.0 lens set at F2.8 and 1600ASA Fugicolor film, for approx 15-25 sec exposures...I aso used a fill flash or flashlight to paint the cactus n the foreground


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Observers: Giuseppe Menardi, Alessandro Dimai, Renzo Volcan, Davide Ghirardo
Location: Col Druscie Observatory, Cortina d'Ampezzo, Italy
Date: April 30, 1997

50 mm lens and Kodak Pro Gold 400 hyper.


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Observer: Francisco Burguera Catala
Location: Los Roques, Tenerife Island, Spain
Date: April 30, 1997

30" unguided exposure, 50mm lens and Fuji 1600.


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Observer: Loke Kun Tan
Location: Red Rock Canyon Park, California
Date: April 30, 1997

8" Celestron/Epoch Schmidt camera.


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Observer: Tim Forrest
Location: Croatan National Forest, Newport, North Carolina
Date: April 30, 1997 00:30-01:12 UT

1. 25 seconds 135mm f2.8 KODAK Royal Gold 1000.

2. 35 seconds 50mm f 2.0 KODAK Royal Gold 1000.

3. 25 seconds 135mm f 2.8 KODAK Royal Gold 1000.


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Observer: Warren Spivack
Location: Brooklyn, New York
Date: April 30, 1997 00:35-00:45 UT

Film - Fujicolor Super G Plus, 400 ISO. Camera - Konica FS-1, 35mm.

1. Tamron 38~100mm zoom set at 100mm, f/3.5. Exposure: 20 sec. Image "contrast-enhanced" with ColorIt! 2.0 auto contrast filter.

2. Spiratone 500mm mirror telephoto, f/8. Exposure 10 sec. Image filtered to increase contrast and brightness to better show the fading dust tail.


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Observer: Allen Bell
Location: Wells, Maine
Date: April 30, 1997 00:45-01:30 UT

The first two images were taken with a Nikon F3 using a 55mm F 1.4 Nikkor lens. The third with 105mm f2.5 Nikkor lens. All were taken on Fujicolor 800 FG Print film from 10 to 20 seconds exposure.


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Observer: Patrick Dyer
Location: San Antonio, Texas
Date: April 30, 1997 02:04, 02:08 UT

1. Pentax K-1000, f/2, projection from 40-mm eyepiece on Criterion RV-6 (6", f/8 Newtonian). Kodacolor 400, 6 seconds clockdriven ("hat trick"), west at top, south at right.

2. Pentax K-1000, f/2, 50-mm with 2x teleconverter. Fuji 800, 30 seconds piggyback on clockdriven Criterion RV-6.


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Observer: Glenn Ray
Location: Sealy, Texas
Date: April 30, 1997 02:07-03:01 UT

First Image
Camera:    Pentax ME Super (35mm) 50mm f/2
Film:      Fuji SG 800 (hypersensitized)
Exposure:  30 seconds @f/2.8 and 60 seconds @f/4

Second Image
Camera:    Pentax ME Super (35mm) 150mm f/4
Film:      Fuji SG 800 (hypersensitized)
Exposure:  2 minutes
Notes:     North is right.  Detail of original print; about 1/4 size.

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Observer: Frank Marotta
Location: Dallas, Texas
Date: April 30, 1997 02:30 UT

Equipment: Nikon F3HP with Nikkor 50mm lens set at f 1.4, 15 seconds. Film: Fuji 400 SG+.


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Observer: David McDavid
Location: Limber Observatory, Pipe Creek, Texas
Date: April 30, 1997 02:45-02:50 UT

his picture of Comet Hale-Bopp is the average of six 30 s exposures through a red (Cousins R) filter and a polarizer with a Photometrics CCD camera (Thomson 512 chip) on the 0.4 m telescope at Limber Observatory, North is up and east is left, and the field of view is about 7 arcmin square.


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Observer: Dave Schmahl
Location: Fallbrook, Northwest San Diego County, California
Date: April 30, 1997 03:00 UT

50mm lens at f1.7, 1000 Kodak Gold, 20 sec exposure, unguided.


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Observer: Michael Horn
Location: Lake Samsonvale, Brisbane, Australia
Date: April 30, 1997 08:32, 08:44 UT

1. Exposure: 15 seconds with 50mm lens, f1.4, Fuji G-800 on a camera tripod.

2. Exposure: 30 seconds with 135mm lens, f2.8, Fuji G-800 on a camera tripod.


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Observer: Paolo Bussola
Location: Prada Alta, Monte Baldo, Italy
Date: April 30, 1997 19:00-19:30 UT

All images taken with Scotch Chrome 800-3200P.

First image: 50 mm lens at f4, 20 seconds exposure.
Second image: 85 mm lens at f4, 3 minutes exposure.
Third image: 400 mm lens at f5.6, 6 minutes exposure.


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Observer: Steve Dunn
Location: Cape Canaveral Air Force Space and Missle Museum, Florida
Date: April 30, 1997 20:10

Canon FTQL , f 1.8, 50 mm, Fugi 400, 30 second exp with hand-held flash.


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Observer: Anthony Parra
Location: Barcelona, Spain
Date: April 30, 1997 20:15 UT

Optics: 55 mm f/2.8. Exposure: 20 seconds on Fuji 400 super G film.


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Observer: Lorenzo Comolli
Location: Mount S. Martino, Italy
Date: April 30, 1997 20:20, 20:30 UT

1. 30 sec exposure, Scotch Chrome 3200 ISO, 55 mm (f/2.8)

2. 2 min exposure, Scotch Chrome 3200 ISO, 200 mm (f/3.5)


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Observer: Joao Porto
Location: Azores Islands
Date: April 30, 1997 22:30-23:00 UT


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

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