Comet 17P/Holmes

	Comet 17P/Holmes Photographs by Matthew T. Russell
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Object: Comet 17P/Holmes Constellation: Perseus Distance from Earth: 2.51 Astronomical Units	Click here to view the full color image. Click here to view the full monochrome image. Click here to view the full psuedo/contour image.	Date Taken: 11/11/2007 Location: Black Forest, CO Equipment: 16" RCOS Ritchey-Chretien Bisque Paramount ME SBIG STL-11000M AstroDon Series I Filter Set Exposure Specs: 6 minutes total Red: 1 x 120 sec Grn: 1 x 120 sec Blu: 1 x 120 sec Processed with: CCDStack Adobe Photoshop CS2
Photograph Description Discovered 1892 by Edwin Holmes. The entire orbit of this comet is 6.9 years. Occassionally, this comet has an outburst of gas as shown in this photograph. This current outburst started on October 24th, 2007. Normally, this comet is extremely dim and can only be seen through long exposure photography, not the unaided eye. Over the course of the last month, the brightness has gone through almost a 1 million increase.

Photograph Description