Skip Navigation: Avoid going through Home page links and jump straight to content

Comet Hale-Bopp Images - March 1997

clrbar.gif

yen17_t.gif gif.gif252K jpg.gif178K
Observer: Bob Yen
Location: Mojave Desert, California
Date: March 5-11, 1997

The strengtening of comet is evidenced, by development of ion and dust tails. The ion tail features *spike-like* streamers near the nucleus (especially active on March 7), and *downwind* vorticular action with gaps + disconnections. The dust tail begins to show hints of *dust bands* on March 5, and are particularly evident on certain days. The source is the very active + productive dust jet (which the visual observers are raving about), which is generating a strong dust stream.


haynes1_t.gif gif.gif155K jpg.gif46K
Observer: Joel Haynes
Location: Pawnee Grasslands, Colorado
Date: March 11, 1997

The 15 minute guided exposure was made on unhypered Kodak PPF 400 using a Televue Genesis 100 mm f/5 refractor at prime focus.


ortiz12_t.gif gif.gif219K jpg.gif63K

ortiz13_t.gif gif.gif198K jpg.gif55K
Observer: Jose-Luis Ortiz
Location: Observatorio de Sierra Nevada, Granada, Spain
Date: March 11, 1997

Images taken through a f/5.4 300mm lens + 1024 x 1024 CCD.


hammer4_t.gif gif.gif82K jpg.gif12K
Observer: Greg Hammer
Location: Greeley, Colorado
Date: March 11, 1997

Kodak Royal Gold 1000. Photo was taken with a stationary 55 mm f2 lens, 25 second exposure. The colors of the tail are remarkable.


alonso197_t.gif jpg.gif38K
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.


gitto10_t.gif gif.gif31K jpg.gif26K

gitto11_t.gif gif.gif96K jpg.gif15K
Observer: Paul Gitto
Location: Arcturus Observatory, Pine Barrens of Whiting, New Jersey
Date: March 11, 1997 00:01 UT

First image is a3 sec. exp. of Hale-Bopp. Dark & flat frame corrected, unsharp masked, log scaled, false colorized and enlarged to bring out details of the pseudonucleus 10" LX 200 @ F/3.3 Pictor 416 CCD. Second image is a 3 sec. exp. Dark & flat frame corrected, and unsharp masked. 10" LX 200 @ F/3.3 Pictor 416 CCD.


cob1_t.gif gif.gif154K jpg.gif46K

cob2_t.gif gif.gif184K jpg.gif69K
Observer: Frank Coburger
Location: Eisenach, Thuringian Forest, Germany
Date: March 11, 1997 02:30-02:45 UT

Image 1:   7.5 min,  2.8/80   Biometar
           scanned with high gamma and yellow filtered
Image 2:   14  min,  2.8/180 Zeiss Sonnar
           scanned normal and sharped
Both images taken with Pentacon SIX 6x6 mounted on a 8"-LX200, Film: Kodak Vericolor 400 ASA.

kre1_t.gif jpg.gif28K
Observer: Tymon Kretschmer
Location: Niepolomice
Date: March 11, 1997 03:12 UT

Film Fujicolor Super G Plus 400 ASA, 3 minutes, Prakticar teleobjektiv 500/5.6.


horn5_t.gif gif.gif183K jpg.gif52K

horn6_t.gif gif.gif319K jpg.gif158K
Observer: Konrad Horn
Location: Germany
Date: March 11, 1997 03:20-03:34 UT

Images taken with a 177/300 Schmidtcamera. All black/white pictures were made with TP2415 hyp., the color ones with Kodak Pro Gold 400.


gliv20_t.gif gif.gif128K jpg.gif15K

gliv21_t.gif gif.gif117K jpg.gif20K
Observer: Andjelko Glivar
Location: Donja Stubica, Croatia
Date: March 11, 1997 03:26, 03:46 UT

First image taken with a Tele 200mm/f:3,5 , Fujicolor super HG 1600, 6 minute exposure. Second images taken with a Celestron 8, 6 min.exp. on Fujicolor super HG 1600.


ves10_t.gif gif.gif3K jpg.gif12K

ves11_t.gif gif.gif78K jpg.gif6K

ves12_t.gif gif.gif78K jpg.gif12K
Observer(s): Jan Vesely
Location: Hradec Kralove, Czech Republic
Date: March 11, 1997 03:34-03:51 UT

First image is taken in prime focus of 20 cm refractor f/17.5 with CCD camera PixCel 255. Field of view is 2.4 x 3.2 arcmin. 5 sec. exposure. This image is unprocessed. The second image is the same frame, but log-scaled. Third image is a "wide-field" 97 x 130 arcmin taken through photographic lens 2/85. Exposure lasted 60 sec. The image was processed: flat fielded and log scaled.


crni25_t.gif gif.gif167K jpg.gif79K
Observer: Herman Mikuz
Location: Crni Vrh Observatory, Slovenia
Date: March 11, 1997 03:42 UT

Wide-field view of comet Hale-Bopp tails structure, obtained with 2.8/90mm lens, CCD and narrow-band filters. Image was taken in the light of singly ionized water ions centered at 620nm (FWHM=10nm). It shows the ion tail spanning beyond the 7.5 deg image frame. Exposure time was 10 minutes. The field of view is 7.5ox5.0o.


heil1_t.gif gif.gif146K jpg.gif57K

heil2_t.gif gif.gif172K jpg.gif38K

heil3_t.gif gif.gif194K jpg.gif38K
Observers: Bruno Stampfer, Martin Dandrea, Rainer Eisendle
Location: Heiligkreuz Observatory, Hall in Tyrol, Austria
Date: March 11, 1997 03:56 UT

First image was taken with a 200mm lens on Kodak Pro Gold 400 6x6 film; 18min. Second image through a 300mm lens on Fuji G800 36mm film; 10min. Third image with our 750mm f5 Schmidt-Newton on Fuji G800; 10min. The pictures were only enhanced in brightness.


hille1_t.gif gif.gif54K jpg.gif14K

hille2_t.gif gif.gif54K jpg.gif14K
Observer: Rudolf A. Hillebrecht
Location: Grasweg-Observatory, Northern Germany
Date: March 11, 1997 04:06-04:32 UT

The first image shows the nucleus region taken in rgb-color. Camera was an ST 5 with CFW6A filter wheel. Images taken with blue 25 sec. (5x5), green 10 sec. (5x2) and red 5 sec. (5x1). No further processing than color registering. Taken at normal focus of my 7-inch refractor, f/9. Second image is the nucleus region with several shells and detail taken at the same instrument with a 2x barlow lens at f/18. 7 images of 1 sec. each, automatically added by SBIG traccum mode. Log scaled, no further processing.


hain1_t.gif gif.gif171K jpg.gif16K

hain2_t.gif gif.gif171K jpg.gif25K
Observers: Vadim Burwitz, Markus Koschinsky, Juergen Krieg, Christoph Ritter
Location: Hainberg Observatory, Goettingen, Germany
Date: March 11, 1997 04:29:11 UT

The first image is a 5 sec unfiltered exposure using our 25 cm refractor at f/16 and an ST-6 CCD camera. The second image shows the interesting results obtained after treating the first image with an adaptive filter.


alonso108_t.gif gif.gif38K jpg.gif3K

alonso109_t.gif gif.gif34K jpg.gif3K
Observers: Alberto Quijano Vodniza, Jose Alonso
Location: Mayaguez, Puerto Rico
Date: March 11, 1997 09:39:09, 09:50:35 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 .


ampo104_t.gif gif.gif140K jpg.gif28K

ampo105_t.gif gif.gif152K jpg.gif13K

ampo106_t.gif gif.gif163K jpg.gif26K
Observer(s): Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: March 11, 1997 09:40:14 UT

First image is a five minute (300 second) exposure of comet Hale-Bopp. A 12 inch Maksutov telescope, working at a focal ratio of f5 was used with an SBIG ST8 CCD camera and a Lumicon Swann Band filter. Second image is the the original 300 second exposure used to make the top image on this page. It has been flat fielded and dark subtracted. This image is a false colour version of the 2nd image.


ches2_t.gif gif.gif292K jpg.gif77K
Observer: Geoff Chester
Location: Blackwater Falls State Park, David, West Virginia
Date: March 11, 1997 09:55 UT

Image made with the 20 cm f/1.5 Schmidt Camera. It was a one minute exposure on Kodak PPF-400 color negative film


ches8_t.gif jpg.gif73K
Observer: Geoff Chester
Location: Blackwater Falls State Park, Davis, West Virginia
Date: March 11, 1997 09:55 UT

20-cm f/1.5 Celestron Schmidt Camera and is a one minute exposure on Kodak PPF-400 color negative film.


varr3_t.gif gif.gif91K jpg.gif83K
Observer: George Varros
Location: Mt. Airy, Maryland
Date: March 11, 1997 10:03-10:07 UT

200mm f/10 EDC-1000. 3 images, Each image is 2x5 seconds, used red, yellow, and blue filters then combined to 24bit with yellow = green.


sch3_t.gif gif.gif15K jpg.gif3K
Observer: Bill Schwittek
Location: Peachland, North Carolina
Date: March 11, 1997 10:10 UT

Image taken on Fuji Super G+ 400 film thru an Astro-Physics 155mm f/7 scope. All negatives scanned directly-no print. 6 minute exposure. Close-up of comet head.


mel1_t.gif jpg.gif115K
Observer: Jim Melka
Location: New Florence, Missouri
Date: March 11, 1997 10:35 UT

SLR 55mm f/2, 4 min exp on Extachrome 1600. I used a manual barn door mount on a camera tripod.


maser1_t.gif gif.gif72K jpg.gif24K
Observer: Don Maser
Location: Last Chance, Colorado
Date: March 11, 1997 11:10 UT

Nikon F with Nikkor 105mm, f2.5, 4min 30sec, Fuji SG 800 Plus, tracked with home made barndoor drive.


nye1_t.gif gif.gif117K jpg.gif39K
Observer: Ralph Nye
Location: Verde Valley, Arizona
Date: March 11, 1997 11:10 UT

15 minutes at f 3.5, 200 mm Konica lens, guided, Fujicolor 400.


kar7_t.gif gif.gif70K jpg.gif41K

kar8_t.gif gif.gif66K jpg.gif40K

kar9_t.gif gif.gif288K jpg.gif44K
Observer: Scott Kardel
Location: Lake Afton Public Observatory, Wichita, Kansas
Date: March 11, 1997 11:22-11:25 UT

First image: Comet over Observatory Dome - 50 mm lens, ~25 seconds on Kodak Royal Gold 1000 film. Second image: Comet over trees - 50 mm lens, ~25 seconds on Kodak Royal Gold 1000 film. Third image: 300 mm lens, 3 minutes (11:22 - 11:25 UT) on Kodak Royal Gold 1000 film.


marotta3_t.gif gif.gif75K jpg.gif17K

marotta4_t.gif gif.gif53K jpg.gif13K
Observer: Frank Marotta
Location: Dallas, Texas
Date: March 11, 1997 11:45-11:55 UT

Equipment: Nikon F3 with 50mm Nikkor set at f2.0, Fuji 400 Super G+.


farrell3_t.gif gif.gif190K jpg.gif35K
Observer: John Farrell
Location: Los Alamos, New Mexico
Date: March 11, 1997 12:00 UT

Image is the median of 10 individual 0.25 second exposures taken with a 0.36m SCT at f/7 and an Axiom Research AX-2 CCD camera, binned 2x2.


milan9_t.gif gif.gif88K jpg.gif25K

milan10_t.gif gif.gif213K jpg.gif39K
Observer: Wil Milan
Location: Table Mesa, Arizona
Date: March 11, 1997 12:15 UT

First image taken with a Tele Vue Genesis at f/5 on a Super Polaris mount, unhypered Fujicolor 1600 film, 15-minute exposure. Second image taken with a 200mm telephoto lens at f/4 piggybacked on a Super Polaris mount, unhypered Fujicolor 1600 film, 15-minute exposure.


reed1_t.gif gif.gif179K jpg.gif39K
Observer: J. Norman Reed
Location: Kamloops, British Columbia, Canada
Date: March 11, 1997 12:15 UT

This image was taken at 12:15 UTC on March 11th using Fuji Super G+ 800 ASA film with a 135mm (f3.5) lens with a 1 minute exposure.


lin1_t.gif gif.gif31K jpg.gif17K
Observer: Shawn Lindell
Location: Cerritos, California
Date: March 11, 1997 12:30 UT

Equipment: Tripod mouted Pentax Spotmatic with 200mm f3.8 2x tele extended lense-Unguided. Exposure: 19sec on Kodak 1000asa GOLD film- unguided.


kment3_t.gif jpg.gif23K
Observer: Milan Kment
Location: Ceska Trebova, Czech Republic
Date: March 11, 1997 18:05 UT

Konica VX-400 color negative film, Nikon FM-2, 2.8/28mm lens, exp. time 45 seconds.


masi34_t.gif gif.gif72K jpg.gif32K

masi37_t.gif gif.gif71K jpg.gif42K
Observer: Gianluca Masi
Location: Ceccano, Italy
Date: March 11, 1997 18:09-18:22 UT

All images have been taken with a 15 cm f/5 telescope, CCD SBIG ST-7 and have been scaled.


kojima8_t.gif gif.gif231K jpg.gif40K

kojima9_t.gif gif.gif260K jpg.gif59K
Observer: Takuo Kojima
Location: Chiyoda, Japan
Date: March 11, 1997 19:24, 20:03 UT

First image
Exp. time; Total 450 sec.
North is up and  4.8 deg. x 3.2 deg. field of view
RGB composit image
Some ghost images are exist in upper right

Taken with a 165mm f/2.8 photo lens + ST-8 CCD.

Second image
Exp. time; Total 0.9 sec.
North is up and  20' x 15' field of view
RGB composit image

Taken with a 25cm f/6 reflector + ST-6 CCD


maeda5_t.gif gif.gif244K jpg.gif60K
Observer: Atsushi Maeda
Location: Ueno, Tottori-shi, Tottori-ken, Japan
Date: March 11, 1997 19:30 UT

Nikon F3 / 50mm F1.4, exposed 20sec at F2.0 without guide, Fujicolor Super G Ace400.


dru29_t.gif gif.gif391K jpg.gif87K

dru30_t.gif gif.gif374K jpg.gif87K
Observer: Allessandro Dimai
Location: Col Druscie Observatory, Dolomites, Italy
Date: March 11, 1997 20:24 UT

Images taken with a Takahasi 102 mm f/8, exp. 5' and Tele 35 mm f/2.8, exp. 2'


berg7_t.gif gif.gif192K jpg.gif67K
Observer: Denis Bergeron
Location: Quebec, Canada
Date: March 11, 1997 23:30 UT

Image taken with a Meade SCT 10" F10 (FL:2500mm). CCD camera SBIG ST6 and a number of 10 images exposed 2 sec were taken. All the 10 images were added and processed by unsharp masking. The blue color of the comet were added to increase the look and are not the real color of Hale-Bopp. The image is very similar as we can see now when you observe Hale-Bopp with a telescope.


cal12_t.gif gif.gif160K jpg.gif29K
Observers: R. Calanca, M. Facchini
Location: Osservatorio Astronomico di Cavezzo, Italy
Date: March 10-12, 1997

Composite image, in the days 10th, 11th, 12th march, of the Hale Bopp. Each image is the sum of 50 images of 3 seconds of integration time, realized in the Astronomical Observatory of Cavezzo, with the 40 cm, f/5.5 telescope and the CCD camera ERG 110 288x384. Larson Sekanina rotational algorithm; 10 degrees and false color.


oam17_t.gif gif.gif106K jpg.gif45K
Observers: Salvador Sanchez, Antonio Garcia
Location: Observatorio Astronomico de Mallorca, Costitx, Spain
Date: March 11-12, 1997

Mosaic of Hale-Bopp images taken about 10 hours apart on March 11, 1997, 19:06 UT and March 12, 1997, 05:25 UT, using a red filter. The image scale is marked on the images. The images are taken using a C14 (35cm diameter) Telescope + ST-6 CCD.


ortiz11_t.gif gif.gif194K jpg.gif56K
Observer: Jose-Luis Ortiz
Location: Observatorio de Sierra Nevada, Granada, Spain
Date: March 12, 1997

Image taken through a f/5.4 300mm lens + 1024 x 1024 CCD.


terr2_t.gif gif.gif255K jpg.gif67K
Observer: Gregory Terrance
Location: Lima, New York
Date: March 12, 1997

200mm Olympus lens at f4, 60 sec. with a IMG1300 camera from Finger Lakes Instr.


timm20_t.gif jpg.gif31K
Observer: Rainer Timm
Location: Weilheim, Bavarie, Germany
Date: March 12, 1997

Nikon EM, 50mm f1.4, 20 sec Kodak Pro Gold 400.


farrell4_t.gif gif.gif146K jpg.gif15K

farrell5_t.gif gif.gif206K jpg.gif41K
Observer: John Farrell
Location: Los Alamos, New Mexico
Date: March 12, 1997

Both images taken with a 0.36m SCT at f/7 and an Axiom Research AX-2 CCD camera, binned 2x2. First image is a 10 second exposure to show the outer structure, second image is the median of a stack of sixteen, 0.25 second exposures to show the structure nearer the nucleus.


glea7_t.gif jpg.gif32K
Observer: Tom Gleason
Location: Foothill College Observatory, Los Altos Hills, California
Date: March 12, 1997

Approx.45 second exposure using Fuji Provia 1600 & Canon AE-1; 50mm lens.


james13_t.gif jpg.gif24K
Observer: Nick James
Location: Chelmsford, United Kingdom
Date: March 12, 1997


kar10_t.gif gif.gif86K jpg.gif16K
Observer: Scott Kardel
Location: Wichita, Kansas
Date: March 12, 1997

50 mm lens, ~25 seconds on Kodak Royal Gold 1000 film.


masi31_t.gif gif.gif106K jpg.gif69K

masi32_t.gif gif.gif76K jpg.gif39K
Observer: Gianluca Masi
Location: Ceccano, Italy
Date: March 12, 1997 02:26-03:28 UT

The first picture has been taken using a 180mm f/5.6 lens, and shows a two-frame mosaic. The field of view along the diagonal is about 3.4 degree. Each frame 2 min exposure. The second picture has been taken using a 150 mm f/5 reflector telescope and shows a four-frame mosaic. The field of view is about 1.1 x 0.7 degrees.


gliv22_t.gif gif.gif117K jpg.gif20K
Observer: Andjelko Glivar
Location: Donja Stubica, Croatia
Date: March 12, 1997 03:15 UT

Image taken with a tele 200mm/f:3.5 on Fujicolor super G plus 800, 10 min. exposure.


horn7_t.gif gif.gif173K jpg.gif49K
Observer: Konrad Horn
Location: Germany
Date: March 12, 1997 03:20-03:28 UT

Image taken with a 177/300 Schmidtcamera and TP2415 hyp.


masi38_t.gif gif.gif54K jpg.gif29K

masi38a_t.gif gif.gif94K jpg.gif60K
Observer: Gianluca Masi
Location: Ceccano, Italy
Date: March 12, 1997 03:32 UT

The first image has been taken with a 15 cm f/5 reflector telescope, equipped with a SBIG ST-7 CCD camera, 1 min exposure, processed with QMips32. The second image has been applied with the Larson/Sekanina method to show jets and inner structure.


trigo31_t.gif jpg.gif32K
Observer: Josep Trigo
Location: Benicassim (Castellon), Spain
Date: March 12, 1997 04:00 UT

Drawing made with (T) 173/1050mm.


schl1_t.gif gif.gif190K jpg.gif53K

schl2_t.gif gif.gif114K jpg.gif32K
Observer: Peter Schlatter
Location: Gurnigel, Switzerland
Date: March 12, 1997 04:00, 03:30 UT

First image:
Film:                   35 mm, Fuji G 800 PLUS
Exposure time:          1 min
Lens:                   Canon FD 50 mm 1:1.4, stopped down to 1:2
Scanner:                Minolta QuickScan 35
Special treatment:      stack of four 1-minute exposures (noise
                        reducement) down-sampled by a factor of 2.5

Second image:
Film:                   35 mm, Fuji G 800 PLUS
Exposure time:          2 min
Lens:                   Canon FD 200 mm 1:4
Scanner:                Minolta QuickScan 35
Special treatment:      down-sampled by a factor of 41

masi33_t.gif gif.gif59K jpg.gif31K

masi35_t.gif gif.gif66K jpg.gif67K

masi36_t.gif gif.gif39K jpg.gif30K
Observer: Gianluca Masi
Location: Ceccano, Italy
Date: March 12, 1997 03:32-04:21 UT

All images have been taken with a 15 cm f/5 telescope, CCD SBIG ST-7. The second image shows the brigthness levels of the coma using pseudocolors. The third set of images shows the aspect of the nucleus at different times. It is clearly visible the inner structure of the coma, with hoods and dust waves.


crni26_t.gif gif.gif141K jpg.gif43K
Observer: Herman Mikuz
Location: Crni Vrh Observatory, Slovenia
Date: March 12, 1997 03:36 UT

False-color image of comet Hale-Bopp, obtained in the light of singly-ionized water ions, with 2.8/180mm lens, CCD and narrow-band H2O+ filter, centered at 620nm (FWHM=10nm). Exposure time was 5 minutes. The field of view is 3.8ox2.5o.


crni29_t.gif gif.gif285K jpg.gif45K
Observers: B. Dintinjana, Herman Mikuz
Location: Crni Vrh Observatory, Slovenia
Date: March 12, 1997 03:36 UT

True-color image, obtained on 1997 Mar. 12.15UT (center) with 90mm, f/2.8 lens, CCD and three filters (H2O+, V and dust continuum).


knob1_t.gif gif.gif236K jpg.gif67K
Observer: Juergen Knobloch
Location: french Jura, Switzerland
Date: March 12, 1997 03:45 UT

200 mm lens f/3.5 on Fuji 800 ASA film. 5' exposure. The camera was mounted on a little (10cm reflector) telescope for guidance.


dru31_t.gif gif.gif94K jpg.gif26K

dru32_t.gif gif.gif82K jpg.gif28K
Observers: Alessandro Dimai, Piergiorgio Cusinato
Location: Col Druscie Observatory, Dolomites, Italy
Date: March 12, 1997 03:50 UT

Images taken with a Takahashi 102 mm f/6, exp. 6' (Kodak Express Gold 400 II hyper.), Tele 300 mm f/2.8, exp. 4'.


weh10_t.gif gif.gif87K jpg.gif14K
Observer: Fred Wehner
Location: Kaiserslautern, Germany
Date: March 12, 1997 04:10 UT

The image is taken with a Pentax 1:1.4 50mm on Kodak Tri-X-Pan with 25 sec exposure time.


trigo29_t.gif jpg.gif87K
Observer: Josep Trigo
Location: Benicassim (Castellon), Spain
Date: March 12, 1997 05:13-05:14 UT

(T) 173/1050 mm in focus.


club1_t.gif gif.gif52K jpg.gif5K

club2_t.gif gif.gif70K jpg.gif5K

club3_t.gif gif.gif114K jpg.gif25K
Observer: Club Astronomie - Ecole Centrale Paris
Location: Chatenay-Malabry, Paris, France
Date: March 12, 1997 05:30 UT

Images taken with a Hi-Sys 22 CCD camera, mounted on a C8 (200mm, F/D=3D10), 15 and 3 sec exposures (guided). The first one is a mosaic of two images. The second and third are respectively unprocessed, unsharp masked.


mir1_t.gif gif.gif144K jpg.gif27K
Observer: Rob Miracle
Location: ???
Date: March 12, 1997 05:40 AM

50 mm F1.8 Fuji Super HG 1600, 30 sec @ F2.8.


sivo1_t.gif gif.gif294K jpg.gif43K
Observer: Joseph Sivo
Location: Union City, New Jersey
Date: March 12, 1997 09:00 UT

1000 ASA Kodak Royal Gold Film, Pentax k-1000 camera, 50 mm f/2.0 lens, 10 sec exposure (unguided), scanned at 200 DPI, processed with PHOTOFINISH software.


camp7_t.gif gif.gif130K jpg.gif40K

camp8_t.gif gif.gif161K jpg.gif33K

camp9_t.gif gif.gif173K jpg.gif43K
Observer: Nick Campitelli
Location: Slippery Rock, Pennsylvania
Date: March 12, 1997 09:18-09:58 UT

Tracking with a barn-door tracker.

Image 1:  Taken on Fuji 800 Super G plus
          50mm lens at f/2.8
          Exposure: 100 seconds

Image 2:  Taken on Fuji 800 Super G plus
          50mm lens at f/2.8
          Exposure: 10 minutes

Image 3:  Taken on Fuji 800 Super G plus
          120mm lens at f/4
          Exposure: 5 minutes

ampo107_t.gif gif.gif279K jpg.gif89K

ampo108_t.gif gif.gif168K jpg.gif16K

ampo109_t.gif gif.gif199K jpg.gif36K
Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: March 12, 1997 09:35:14 UT

First image is a five minute (300 second) exposure of comet Hale-Bopp. A 12 inch Maksutov telescope, working at a focal ratio of f5 was used with an SBIG ST8 CCD camera and a Lumicon Swann Band filter. The second image is the original 300 second exposure used to make the top image on this page. It has been flat fielded and dark subtracted. The third image is a false colour version of the 2nd image.


sch4_t.gif gif.gif79K jpg.gif10K

sch5_t.gif gif.gif46K jpg.gif5K
Observer: Bill Schwittek
Location: Peachland, North Carolina
Date: March 12, 1997 09:50 UT

Images taken on Super G+ 400 film thru an Astro-Physics 155mm f/7 scope. All negatives scanned directly-no print. Very short exposure (15 sec) to show detail in nucleus. Second image is the same negative but exposed to attempt to show the "bands" or "arcs" eminating from the comet nucleus.


burns1_t.gif gif.gif50K jpg.gif13K

burns2_t.gif gif.gif47K jpg.gif16K
Observer: Todd Burns
Location: Pen Argyl, Pennsylvania
Date: March 12, 1997 09:55, 10:10 UT

The first image was taken through a 150 mm lens at f/4.0 on Ektapress 1600 film with an exposure time of 2 minutes. Setup was piggybacked on an equatorial mount. The second image was taken through a 28 mm lens at f/3.5 on Ektapress 1600 film with an exposure time of 2 minutes. Setup was piggybacked on an equatorial mount.


iat1_t.gif gif.gif73K jpg.gif16K
Observer: John Iatesta
Location: Brasstown Bald, Georgia
Date: March 12, 1997 10:05 UT

35mm Pentax MX with 135mm f2.8 lens on Fujicolor 1600 for 2 minutes. Guided on comet nucleus.


graham15_t.gif jpg.gif34K

graham16_t.gif jpg.gif26K
Observer: Francis Graham
Location: Christine Alley Observatory, Pittsburgh, Pennsylvania
Date: March 12, 1997 10:07, 10:20 UT

1. 16 cm. f/15 refractor, prime focus, 3 sec., ASA 400. Deliberately underexposed to bring out inner coma and jets.

2. 55 mm f/1.8 60 sec. ASA 400.


sabia1_t.gif gif.gif97K jpg.gif13K
Observer: John Sabia
Location: Keystone College Obserrvatory, Fleetville, Pennsylvania
Date: March 12, 1997 10:10 UT

A 40 second exposure on Kodak Royal Gold 1000 film , positive projection EFR of 40 with the 9.5 inch f/15 Clark Refractor.


durig24_t.gif gif.gif87K jpg.gif18K

durig25_t.gif gif.gif60K jpg.gif9K
Observer: Douglas Durig
Location: Cordell-Lorenz Observatory, Tennessee
Date: March 12, 1997 10:30 UT

The first has been processed to show the two tails and the other just shows the main structure of the comet. Both are from a track and accumulate combination of 10 different 30 sec exposures aligned on the comet taken at about 10:30 UT . I used a 60 mm f/5.6 camera lens attached to a ST-6 CCD camera.


berry1_t.gif gif.gif79K jpg.gif36K
Observers: Doug Berry, Jose Tijerina
Location: Fortville, Indiana
Date: March 12, 1997 10:35 UT

Nikon FA, Nikkor 50mmf/1.2 Konica SRG3200 film 2 minute exposure using hand-driven barn door tracker.


kub7_t.gif gif.gif93K jpg.gif47K
Observer: Pavel Kubicek
Location: Observatory and Planetarium, Teplice, Czech Republic
Date: March 12, 1997 18:40 UT

Image is a sum of ten original, processed images, 12 seconds each with 150mm (6") Maksutov - Cassegrain f/15 + Barlow lens 1.3x and Cookbook 245 CCD camera. It shows dramatic changes in appearance of envelopes!


hutch5_t.gif gif.gif126K jpg.gif16K
Observer: Bill Hutchinson
Location: Kenai National Wildlife Refuge, Alaska
Date: March 12, 1997 19:00 UT

Nikon N90 50mm at f2.0, 30 second exposure on Kodak Royal Gold 1000.


zle7_t.gif gif.gif73K jpg.gif8K
Observer: Udo Zlender
Location: Bonn, Germany
Date: March 12, 1997 20:06:11 UT

Camera: OES-LCCD14 2x2 pixel binning mode , 12 bits AD-resolution
Telescope: 1760mm F/6.3 Celestron C11 with focal reducer
Tracking: automatic on Losmandy G11
Filter: None
CCD-temp: -4 deg Celsius
Orientation: North is up
Exp. time: 8.0 sec
Processing: dark subtracted, log scaled

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

clrbar.gif

jplred.gif