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Comet Hale-Bopp Images - February 1997

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Observer: Scott Eckert
Location: Hickory, North Carolina
Date: February 22, 1997

Nikon 35-105 3.5 lens set on 70mm on Kodak Royal Gold 1000 film,30 sec. exposure.


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Observers: R. Calanca, M. Facchini
Location: Osservatorio Astronomico di Cavezzo, Italy
Date: February 22, 1997 04:15 UT

The sum of 12 images of 5 seconds of integration time with the 40 cm telescope and the CCD camera 512x512, field: 12'x12'. The image has been treated with the Larson Sekanina rotational algorithm; 10 degrees; -2 pixels and 10 degrees rotation; -2 pixels translation and sawtooth scaling and false color(the North is up, East on the left).The gas shells which surround the nucleus, are clearly visible.


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Observer: Herman Mikuz
Location: Crni Vrh Observatory, Slovenia
Date: February 22, 1997 04:22 UT

False-color image of comet Hale-Bopp, taken in moonlight conditions on 1997 Feb. 22.182UT (start), with 4/90mm lens, CCD and V filter. Exposure time was 1 minute. The field of view is 5.5x4.1 deg. North is at the top, East to the left.


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Observer: Martin Mutti
Location: Oberwichtrach, Switzerland
Date: February 22, 1997 04:31:46-05:19:37 UT

I have taken this morning a CCD color image of Hale Bopp with a 55mm foto objective.

Telescope:              Objective Minolta MD Macro F=3D55mm f/1.7 stopped by f/4
CCD-Camera:             SBIG ST-7 HiRes mode
Size:                   7.2=B0 x 4.8=B0
                        IR stop + red, green, blue filter
Integrations:           red:    2 X 120 sec
                        green:  2 X 180 sec
                        blue:   2 X 600 sec
                        total:  1800 sec
Image manipulation:     dark substract, flat field
Imaging software:       CCDOPS36, PRISM

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Observer: Nick James
Location: Chelmsford, United Kingdom
Date: February 22, 1997 05:57 UT

Taken from Chelmsford, UK using a 0.30m, f/5.25 Newt. + SX CCD. 8 x 5 second exposures.


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Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: February 22, 1997 09:29:09, 10:14:40 UT

The first image was taken with a ST-6 CCD camera through a 5 inch, F10 reflector. 20 sec exposure. The field of view is 23.1 X 17.4 arc min. Second image was taken with a ST-6 CCD camera through a 16 inch, F10 reflector. 5 sec exposure. The field of view is 7.3 X 5.5 . The image is unprocessed.


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Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: February 22, 1997 09:47:39 UT

A 300 second exposure of comet Hale Bopp taken using a 12 inch Maksutov telescope, working at f5. Image was taken through a Lumicon Swann Band filter. The original grey scale image has been coloured to show detail. Image obtained using an SBIG ST8 camera, working in medium resolution mode (18 micron pixels). Field of view is approximately 0.3 degree (long RA axis) by 0,2 degrees (short declination axis). The second image is a false coloured version of the above 300 second exposure of comet Hale Bopp.


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Observers: Adolfo Cabral-Porchas, Fernando Avila-Castro, Carlos Armendariz-Cuningam
Location: University of Sonora, Mexico
Date: Februray 22, 1997 12:16-13:10 UT

Images taken with 28mm and 50mm + CCD ST-4X + IR filter 830 nm.


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Observer: Patrick Dyer
Location: San Antonio, Texas
Date: February 22, 1997 11:58 UT

Pentax K-1000, f/2, 50-mm. Kodacolor 400, 30 seconds unguided.


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Observers: Calvin Hill, Debbie Hill
Location: Grand Prairie, Texas
Date: February 22, 1997 12:23 UT

Magnitude: ~1.0. Conditions: 37 degrees F, 96% humidity, clear with a Full Moon. Equipment: Cookbook 245 CCD on a Meade 8" f/6 reflector, Murnaghan 'IR-C' IR Continuum filter. First attempt at near infrared, image was dark-subtracted and processed with AIP245 and SkyPro. 1 second tracked.


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Observer: Bill Hutchinson
Location: Kenai National Wildlife Refuge, Alaska
Date: February 23, 1997

Nikon N2020 210mm f4, 1 minute exposure on Haig mount. Kodak Gold 1000.


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Observer: Bill Hutchinson
Location: Kenai National Wildlife Refuge, Alaska
Date: February 23, 1997

Birch tree shots but with slower less grainy film. Nikon N90 50mm f2, 1 minute exposure on Haig mount. Fuji Provia 100.


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Observer: Martin Mutti
Location: Oberwichtrach, Switzerland
Date: February 23, 1997 03:51-04:59 UT

Telescope:              Objective Minolta F=28mm f/2.4 stopped by f/4
Observatory:            Stockerenweg 1, Wichtrach, Switzerland
CCD-Camera:             SBIG ST-7 HiRes mode
Size:                   14\060 x 9.3\060
                        IR stop + red, green, blue filter
Integrations:           red:    1 X 120 sec
                        green:  2 X 180 sec
                        blue:   4 X 600 sec
                        total:  2880 sec
Image manipulation:     dark substract, flat field
Imaging software:       CCDOPS36, PRISM

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Observers: Salvador Sanchez, Antonio Garcia
Location: Observatorio Astronomico de Mallorca, Costitx, Spain
Date: February 23, 1997 04:16 UT

First Image: 50mm objective + SXL8 CCD. Second Image: 5 second exposure, blue-filter. 35cm telescope (C14) at f/22 + ST6 CCD, 2.78x2.87 arcmin^2. Third image is processed.


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Observer: Andreas Berthold
Location: Ravelsbach, Austria
Date: February 23, 1997 04:57 UT

Image taken with a Genesis Refactor, 5 second exposure.


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Observer: Rainer Timm
Location: Munich, Germany
Date: February 23, 1997 04:45 UT

Image taken with Nikon EM 50mm 1,8, 20 sec, and Fuji Sensia 400 /push 1600.


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Observer: Andjelko Glivar
Location: Donja Stubica, Croatia
Date: February 23, 1997 05:24, 05:40 UT

First image: 10 minutes on Fujicolor super G+ 800 with Celestron 8.

Second image: 10 minutes exp. on Fujicolor super G+ 800 with Tele 200mm/f:3,5


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Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: February 23, 1997 09:26-09:57 UT

The first image was taken with a ST-6 CCD camera through a 5 inch, F10 reflector. 20 sec exposure. The field of view is 23.1 X 17.4 arc min. Second image was taken with a ST-6 CCD camera through a 16 inch, F10 reflector. 10 sec exposure. The field of view is 7.3 X 5.5 . The image is unprocessed. Third image was taken with a ST-6 CCD camera through a 16 inch, F10 reflector. 10 sec exposure. With BLUE FILTER. The field of view is 7.3 X 5.5 . The image is unprocessed.


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Observer: Richard Didick
Location: Taunton, Massachusetts
Date: February 23, 1997 09:35 UT

Sketch made using a 10" F4.5 refl. at 127x.


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Observer: Nick Campitelli
Location: Slippery Rock, Pennsylvania
Date: February 23, 1997 10:13, 10:22 UT

The first image was taken using Fugi 800 super G plus, tracking for 5 minutes. The lens was a 50mm at f/4. The building in the corner is a brick tower on a hill. The second image was taken using Fugi 800 super G plus, tracking for 4 minutes. The lens was a 300mm at f/4.


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Observer: Chris Protopapas
Location: Lexington, New York
Date: February 23, 1997 10:20 UT

Image taken using a Fujica ST801 camera. 50mm f1.4 @ approximately 20 seconds exposure on Fujicolor 800 SuperG. The camera was piggybacked onto a Celestron 80 refractor.


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Observers: George Varros, Dave Varros
Location: Mt. Airy, Maryland
Date: February 23, 1997 10:25-10:30 UT

First set of images are 1 and 2 second exposure with an 8" SCT. North is left. Second set of images are both 5 sec exposure with 8" SCT.


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Observer: Uwe Heine
Location: Burlington, North Carolina
Date: February 23, 1997 10:30-11:00 UT

My first drawing of Hale-Bopp based on telescopic (instead of binocular) observation. The amazing thing that was immediately apparent at a number of different magnifications was the pattern of concentric bands in the major southward jet. Close examination revealed it to be a sigmoid pattern (see inset), suggesting an expanding helix as seen from the side. This would be consistent with the spin axis of the comet being almost exactly perpendicular to our current line-of-sight, and oriented in the general direction of the southward facing jet. Is there any data to confirm or deny this hypothesis? I realize this is stretching things do base such a conclusion on one observation!


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Observer: Gary Holmes
Location: Tuscaloosa, Alabama
Date: February 23, 1997 10:45 UT

These are very dark prints of moonstruck negatives. The two images are unfiltered on hypered 2415 film. The second image used a blue filter. Both are 60-second exposures. The white-light one shows both tails nicely, at about the same level.


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Observer: James C. Wallace II
Location: Terre Haute, Indiana
Date: February 23, 1997 10:45, 10:47 UT

First image acquired using Fujicolor 3200 Super G film at f/3.4, 28mm wide angle lens. exposure is at 30 seconds. Foreground is illuminated by the full moon. Although not apparent in photo, tail is over 2 degrees long, curving upwards to the southeast. Magnitude estimate is 1.0. Second image acquired using Fujicolor 3200 Super G film at f/3.4, 70mm zoom lens. Foreground is illuminated by the full moon. More apparent in this photo is the tail, which is over 2 degrees long, curving upwards to the southeast. Magnitude estimate is 1.0.


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Observer: Moises Urbina
Location: San Salvador, El Salvador
Date: February 23, 1997 11:00 UT

Image taken with a Cannon Eos Rebel camera an a Tokina 70-210 mm telephoto and Asa-400 film, f/4, 30 seconds. This picture was taken on a static tripod mounted on a street with public lighting.


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Observer: Francis Graham
Location: Christine Alley Observatory, Pittsburgh, Pennsylvania
Date: February 23, 1997 11:00 UT

Sketch of Comet Hale-Bopp, 16 cm. f/15 refractor, 20 mm ocular.


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Observer: David Hanon
Location: Ringgold, Georgia
Date: February 23, 1997 11:10 UT

The first image is a tri-color image taken at 11:10 UT on 02/23/97. It is the result of 14, 21, and 60 sec red, green, and blue exposures with my 7" f/9 refractor at f/9 and ST-8 ccd camera. I have the center of the first image processed at a larger scale and enhanced to show the structure around the nucleus.


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Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: February 23, 1997 11:21-11:23 UT

First image is a 30 second exposure of comet Hale Bopp taken using a 12 inch Maksutov telescope, working at f5. Image was taken through a Red (wratten 25) filter.. The original grey scale image has been coloured to show detail. Image obtained using an SBIG ST8 camera, working in medium resolution mode (18 micron pixels). Field of view is approximately 0.3 degree (long RA axis) by 0,2 degrees (short declination axis). The second image is a false coloured version of the above 300 second exposure of comet Hale Bopp, The jets of comet Hale Bopp are visible in the third image. This image has been processed by subtracting a 15 x 15 pixel median filtered masked version of the original image which had an exposure time of ten seconds Incidentally, the jets visible in this picture are really easy to see with the unaided eye...


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

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