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Comet Hale-Bopp Images - November 1996

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Observer: Paolo Candy
Location: Cimini Mountains, Viterbo, Italy
Date: November 1, 1996 18:00 UT

Celestron SCT 14 inch modified by the author at f/3.1 (1,080 mm of focal length) on CG Losmandy + Deepsky Lumicon filter - Fujicolor NPH400 Professional = film 20 minutes of exposure guiding by GEG Lumicon off axis. (Electronic work by PhotoShop 3.0 and solarized effect) Note 5 jets from the nucleus, one of which in antisolar direction.


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Observer: Siebren Klein
Location: Portimao, Algarve, Portugal
Date: November 1-2, 1996

Images taken with the 50cm COAA telescope at Portimao, Algarve, Portugal, with an SX camera both expertly operated by Bev Ewen-Smith at my suggestion. All image manipulations are mine.


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Observer(s): Hermann Boehnhardt
Location: European Southern Observatory, La Silla, Chile
Date: November 2, 1996 00:00 UT

This series of four images shows the appearance of Comet Hale Bopp in early November 1996. At this time it was approaching the Sun in the sky. The images were taken at the Danish 1.5-metre telescope with the DFOSC multi-mode instrument on 2 November 1996 around 0 UT. The detector was a LORAL CCD chip (2052 x 2052 pix). The orientation is such that North is up and East is to the left. The pixel size is 0.4 arcsec. At the time of the exposures the comet was just 20 deg above the horizon and still in the twilight sky. The heliocentric distance was 2.49 AU (372 million km) and the Earth distance was 3.05 AU (456 million km). Thus, 1 pix = 885 km. The exposure time was 300 sec (41a+b; CN-filter) and 5 sec (41c+d; R-filter), respectively.


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Observer: David Hanon
Location: Ringgold, Georgia
Date: November 3, 1996

Image taken with a ST8 7" F/6.


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Observers: Andjelko Glivar
Location: Donja Stubica, Croatia
Date: November 3, 1996 17:46 UT

This image was taken on Fujicolor super G plus 800, 13 min. exposure with Celestron 8.


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Observers: Gianluca Masi, Franco Mallia
Location: Astronomical Observatory, Campo Catino, Italy
Date: November 4, 1996 17:53 UT

120 second exposure. Refractor 25 cm f/9 APO. CCD SBIG ST-6.


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Observer(s): Astronomy Class (Students - Age 16-18)
Location: Sonderborg Observatory, Denmark
Date: November 8, 1996

100 Sec. CCD photo. Vertical Image Size: 1200 Arcsec. The color picture has logarithmic stretch in order to enhance jet structures - pseudo colors.


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Observer: Alberto Quijano Vodniza
Location: Mayaguez, Puerto Rico
Date: November 9, 1996 - October 11, 1997

Images taken with a ST-6 CCD camera through a 16 inch, F10 reflector.


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Observers: O. Hainaut, K. Meech, J. Bauer, C. Petersen
Location: University of Hawaii
Date: November 12, 1996

Top exposure has been taken through a R filter; the exposure time was kept very short (10sec) in order not to saturate the central region of the comet.

The brightness of the coma (or "hair") of a comet that is smoothly, continuously active will drop as the inverse of the distance to the nucleus (i.e., as 1/rho). So, to enhance the deviations from a smooth coma such as jets, we divided the original image by a model representing a perfectly uniform comet with a 1/rho coma.


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Observers: Glenda Denicolo, Miquel Serra-Ricart
Location: Teide Observatory, Canary Islands, Spain
Date: November 13, 1996

Images taken with the 82 cm. IAC-80 telescope Two images are presented, which represent the sum of 6, individual exposures of 15 seconds. As the comet moves substantially between exposures, the frames have been shifted to centre the comet on the same position each time; this is why the edges of the image have a striated appearance. The first, shows the raw frame, with no special processing. The second shows the same image after being filtered to show the jets more clearly close to the nucleus.


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Copyright John Chumack
Observer: John Chumack
Location: Sapello, New Mexico
Date: November 13, 1996 02:30 UT

16cm F3.3 Takahashi Hyberbolic Astrograph, 30 minute Exp. on PRN 100 Negative Film.


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Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puetro Rico
Date: November 14, 1996 23:14:43 UT

Image was taken with a ST-6 CCD camera through a 16 inch, F10 reflector. 10 sec exposure. The observatory is part of the University of Puerto Rico, located in the city of Mayaguez, western coast of Puerto Rico (lat = 18 N, long 67 W). The field of view in each image is 5.5 x 7.7 arc min. The image is unprocessed.


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Observers: H. Fukushima, N. Yamamoto
Location: National Astronomy Observatory, Japan
Date: July - December 1996

Images taken using the NAOJ 50cm reflector with a CCD camera.


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Observers: H. Fukushima, N. Yamamoto
Location: National Astronomy Observatory, Japan
Date: April - November 1996

Images taken using the NAOJ 50cm reflector with a CCD camera.


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Observer: Herman Mikuz
Location: Crni Vrh Observatory, Slovenia
Date: November 19, 1996 17:00 UT
Copyright 1996 Herman Mikuz

False-color image of comet Hale-Bopp, obtained in the light of singly-ionized water ions. It was taken in moonlight conditions the 36-cm, f/6.8 S-C telescope, H2O+ filter and Wright CCD. Exposure time was 1 minute. The frame field of view is 16.7x10.9 arc min. Several prominent streamers are visible.


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Observer: Marcus Arzt
Location: Swabian Observatory, Stuttgart, Germany
Date: November 22, 1996 16:49 UT

A Hale-Bopp CCD-image taken with ST-6 at focal length 3910mm. exposure = 60s, telescope = Celestron 14, field = 7.7' x 5.8', north is up.


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Observers: Milos Tichy, J. Ticha
Location: Klet Observatory, Czech Republic
Date: November 22, 1996 16:51 UT

The false-color image was taken with 0.57-m f/5.2 reflector + CCD camera SBIG ST-8 and is 60 seconds exposure. The field of view is 16 to 10 arcminutes with north to the top and west to the right. Diffrent colors represent diffrent brightness levels with the brightest region in the centre of comet.


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Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puetro Rico
Date: November 26, 1996 22:49:54 UT

Image was taken with a ST-6 CCD camera through a 16 inch, F10 reflector. 10 sec exposure. The observatory is part of the University of Puerto Rico, located in the city of Mayaguez, western coast of Puerto Rico (lat = 18 N, long 67 W). The field of view in each image is 5.5 x 7.7 arc min. The image is unprocessed.


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Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: November 27, 1996

Image was taken with a ST-6 CCD camera through a 16 inch, F10 reflector. 10 sec exposure. The field of view in each image is 5.5 x 7.7 arc min. The image is unprocessed.


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

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