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Comet Hale-Bopp Images - February 1997

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Observer: Alessandro Dimai
Location: Col Druscie Observatory, Cortina d'Ampezzo, Italy
Date: February 28, 1997

Image of the comet Hale Bopp taken with a Takahashi 102 mm f/6, exp. 4' (Kodak Express Gold 400 II hyper.). The comet was of magnitude 0.2 with a naked eye visible ion tail of ~10 degrees and a diffuse dust tail of ~5 degrees, despite the Moon was in the sky.


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Observer: Russell Sipe
Location: Anaheim, California
Date: February 28, 1997

This drawing shows an upclose view of the coma and southern jet which has dominated the comet for more than a month now. The bright area just to the left of the stellar like nucleus is ever so slightly brighter than the rest of the jet. This area can be preceived as being almost nucleus-like at times. This so-called "false nucleus" can give the comet the appearance of having an elongated nucleus when viewed at the eyepiece.


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Observer: Alberto Quijano Vodniza
Location: Mayaguez, Puerto Rico
Date: February 20, 1997 - March 19, 1997

RGB Images were taken with a ST-6 CCD camera through a 5 inch. telescope.


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Observer: Rainer Timm
Location: Bavarie/Munich, Germany
Date: February 28, 1997 03:18, 04:15 UT

Both pictures are taken by Nikon EM, 50mm f1,8 15.sec.


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Observer: Martin Mutti
Location: Stockerenweg 1, Wichtrach, Switzerland
Date: February 28, 1997 04:13-04:31 UT

CCD color image taken Feb 28 1997

Telescope:              Objective Minolta MD Macro F=3D55mm f/1.7
CCD-Camera:             SBIG ST-7 HiRes mode
Size:                   7.2=B0 x 4.8=B0
                        IR stop + red, green, blue filter
Integrations:           red:    1 X 60 sec
                        green:  1 X 90 sec
                        blue:   1 X 300 sec
                        total:  450 sec
Image manipulation:     dark substract, flat field
Imaging software:       CCDOPS36, PRISM

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Observer: Herman Mikuz
Location: Crni Vrh Observatory, Slovenia
Date: February 28, 1997 04:29 UT

Wide-field false-color image of comet Hale-Bopp, taken in moonlight conditions on 1997 Feb. 28 with 4/90mm lens, CCD and V filter. The field of view is 5.5ox4.1o. North is at the top, East to the left.


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Observers: R. Calanca, M. Facchini
Location: Osservatorio Astronomico di Cavezzo, Italy
Date: February 28, 1997 04:30 UT

The sum of 50 images of 3 seconds of integration time. Images taken with the 40 cm telescope and the CCD camera ERG 110 288x384, field: 10'x14'. Larson Sekanina rotational algorithm; 10 degrees and false color.


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Observer: Martin Mutti
Location: Stockerenweg 1, Wichtrach, Switzerland
Date: February 28, 1997 04:31-04:50 UT

Telescope:              Objective Minolta MD Macro F=28mm f/2.5
CCD-Camera:             SBIG ST-7 HiRes mode
Size:                   140 x 9.30
                        IR stop + red, green, blue filter
Integrations:           red:    1 X 120 sec
                        green:  1 X 180 sec
                        blue:   1 X 600 sec
                        total:  900 sec
Image manipulation:     dark substract, flat field
Imaging software:       CCDOPS36, PRISM

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Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: February 28, 1997 09:45:46, 09:53:48 UT

The first image was taken with a ST-6 CCD camera through a 5 inch, F10 reflector. 15 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. 5 sec exposure. The field of view is 7.3 X 5.5 .


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Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: February 28, 1997 10:06-10:47 UT

First image is a 300 second exposure of Hale Bopp through a 12 inch f5 Maksutov telescope, taken using a Lumicon Swann band filter. Image has had a dark frame subtracted, been flat fielded, and then gamma and contrast scaled. A false colour pallate has then been applied. Second image is a false colour version of the previous image. Third image is a 420 second exposure of Hale Bopp taken through a narrow band H20+ emission filter (7000.0 nanometers, 22nm FWHM). The camera head was guided on the motion of the comet, which gives the star trails visible in the picture. Image taken at the prime focus of a 12" Maksutov telescope, using an SBIG ST8 CCD camera, working in medium resolution mode (18 micron pixels) [Image] Fourth image is a 180 second exposure of comet Hale Bopp, taken through a narrow band continuum filter centered at 684.0nm (9nm FWHM). Image has been flat fielded, contrast and gamma scaled and a false colour pallate applied.


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Observer: John Chumack
Location: John Bryan State Park Observatory, Ohio
Date: February 28, 1997 10:57 UT

The Image on the left is the original, on the right was processed to show any internal structure and the main sources of the(Top) dust and Ion tails (Bottom). Taken in the presence of the waning gibbous moon. These images are through an ST-6 CCD camera attached to a 3" F6 Refractor, mounted on my NSF/AAVSO Widefield Camera Platform. Taken using an Omega B, V, & R Filter set with an inline IR Blocking filter. R=30sec, V=60sec., B=90sec. exposures. Aligned on the Comets Nucleus.


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Observer: Gary Kronk
Location: St. Louis, Missouri
Date: February 28, 1997 11:12 UT

Sketch of Comet Hale-Bopp using 33.3-cm reflector, 200x & 500x.


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

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