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  Summary: Comet 17P/Holmes shocked astronomers on Oct. 24, 2007, with a spectacular eruption. In less than 24 hours, the 17th magnitude comet brightened by a factor of nearly a million, becoming a naked-eye object in the evening sky. Look for a golden 2.5th magnitude fuzzball in the constellation Perseus after sunset. [sky map] [ephemeris] [3D orbit]
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  Photographer, Location Images Comments


Helmut Groell,
Moers, Germany
Oct. 30, 2007
#1, more

Now I have an animated GIF-File of Holmes with our moon to compare it in size.


Frank Freestar8n,
Hudson Valley, NY, USA
Oct. 31, 2007
#1, more

This tail is pretty faint, but it shows clearly here. I started imaging this comet a few days ago with my c11 at f/10. Then f/4.5. Now I'm using Hyperstar at f/1.8 and the field still isn't big enough. This is from 75 1-minute shots with c11 at f/1.8 using SXVF-H9c camera. Processed in ImagesPlus, with some adaptive LR to enhance - but the tail is directly visible in the stack. UT 20071031 04:00


Martin Mc Kenna,
Maghera, Co.Derry, N. Ireland
Oct. 29, 2007
#1, #2, more

Hi Tony Here are a few recent images of Holmes with a firework which suddenly appeared in the same shot which I thought has a nice Halloween theme. Also a few others of the comet taken from the countryside. Fujifilm S5600 5.1MP at ISP800 15 sec/


Chris Cook,
Cape Cod, Massachusetts
Oct. 29, 2007
#1, more

This is an animation of Comet Holmes over two nights. It shows the expansion of the gas/dust shell. Both images were taken with a SV80S apo refractor and SBIG ST-8E CCD camera.


Mikkel Steine,
Blaker, Norway
Oct. 30, 2007
#1, #2, more

I tried for the comets tail and was successful. What a wonderful and strange comet. Spectacular. Outer shell (the faintest level) is easily visible in my 14x100 binoculars.


Mohammad Javad Fahimi,
Kerman,Iran
Oct. 27, 2007
#1

Canon EOS 400D,800 ISO,5S Exposure


Andrew Cooper,
Waikoloa, Hawaii, USA
Oct. 30, 2007
#1, more

Watching the coma expand night after night has been fascinating. Sequence of four frames taken each night with a Canon 20Da and 90mm APO. Each frame a stack of 25 10sec exposures processed identically.


Jean-Christophe Dalouzy,
Caen, Normandy, France
Oct. 30, 2007
#1, #2,

I took his picture last night near Caen, France. I use a FSQ 106 with 350 Baader. Exposure was 11 x 30 seconds at 800 ISO. It is a very nice comet !


Pieter Ibelings,
Dekalb-Peachtree Airport KPDK Atlanta, GA
Oct. 30, 2007
#1, #2

Comet 17P/Holmes was as bright as nearby stars. It was a very easy target even with all the city lights. Comet was photographed from the observation deck of the Dekalb-Peachtree Airport KPDK in Atlanta. Nikon D200, 18-200mm VR AFS


Nicholas M Guydosh,
Kopernik Observatory, Vestal, NY, near Binghamton, NY.
Oct. 30, 2007
#1

I am a staff member of the Kopernik Observatory, Vestal, NY. This is a composite of two exposures of Comet Holmes. The 15 second exposure details the inner coma, and the 2 minute exposure details the fainter haze outside the familiar inner coma "disk". Both images used a 300mm camera lens at f/5.6 on a Canon Rebel XT camera body at ISO 1600. The camera was mounted "piggy-back" on a 3.5" Questar telescope that was used to track the object. Sky conditions were a bit hazy with noticeable light pollution.


Eugene Miller,
Rooftop in Brooklyn, New York, 6:30AM
Oct. 31, 2007
#1, #2, #3, #4,

While photographing Comet Holmes a jet aircraft flew right through it! What a lucky flightpath. The sky was clear and the constellation Perseus and Comet Holmes were all very bright. As an added bonus a brilliant Moon was high in the sky and to the east Venus shone brightly at daybreak. Photo details: Canon EOS Digital Rebel XT camera, 400 ASA, 75-300mm lense (Comet Holmes and Moon), 18-55mm lense (Venus), 15s exposure, f=5.6 (for comet photos), for Moon 1/125s exposure at f=5.6, for Venus 1/4s exposure at f=3.5, all photos with tripod and remote shutter release and manual focus.


Elizabeth Warner,
College Park, MD
Oct. 31, 2007
#1, more

Although not spectacular like McNaught, Holmes has its own unique charms! I stayed most of the night at the campus observatory to get these pics and have to be back at work shortly. But it was well worth it! Details: Canon 20DA ISO 800, 152mm f/9 refractor, 2x30s shots about 75 minutes apart (12:27, 01:43 EDT)


Teri Smoot,
New Mexico Skies, Mayhill NM
Oct. 30, 2007
#1, more

I have been following this comet since the evening of the 24th. I've taken images every evening since then and combined them into a montage showing the position and size.

more images (Oct. 30-31): from David Strange of the Norman Lockyer Observatory, Devon, UK; from Rob Kantelberg of Sint-Oedenrode, the Netherlands; from Joerg Schuenemann of Kiel, Germany; from Donald A. Kocsis of Tucson, Arizona; from John McClintock of Johnsville, Ohio; from Erika Rix of Zanesville, Ohio; from Terry Lutz of Plymouth, Ohio; from Alin Tolea of Baltimore, MD; from Tom Davis of Salisbury, NC; from Ralph Pass of Merrimack College Observatory, North Andvoer, Massachusetts; from Roberto Garofalo & Fabrizio Marchi of TREVISO - ITALY; from Dr Armando Lee of Martinville Subdivision, Las Pinas City, Metro Manila, The Philippines; a sketch from Rok Vogrincic of Slovenia; from Catalin Fus of Alexandria, Teleorman, Romania; from Chris Jones of Tularosa, New Mexico; from Frans Kerren of Venlo Netherlands; from Reza Amini Nejad of Arak, Markazi, Iran; from Francisco A. Rodriguez Ramirez of MontaƱa Cabreja Observatory MPC J45 Gran Canaria - Canary Islands; from Ingo Scholtes of Lampaden, Germany; from Patrice Arnaudet of Mery sur oise, France;