Comet 17P/ Holmes
October 27 through November 13, 2007
Page 6 of 6
by Gary Honis
October 29, 2007 animation: (2.4 MB)
October 27, 2007:
This photo using a camera lens shows the interference from the nearby Moon. The comet was positioned as an extra extension on the leg of the running man of the constellation Perseus. The nearer two bright stars in Perseus are 3.0 and 1.8 magnitude. My guess is that the magnitude of the comet was around 2.0:
The Orion ED80 Refractor provided this image of the comet. 8 exposures of six seconds each at ISO 1600 were stacked using sigma clipped median in Images Plus for the image.
The 20" Starmaster provided this image of the comet. 18 exposures of two seconds each at ISO 1600 were stacked using sigma clipped median in Images Plus for the image:
The following animation cycles through images taken of the comet through the 20" Starmaster at exposures varying from .8 seconds to 2.5 seconds. The nucleus of the comet is very bright. The animation helps to show layers of structure in the comet. The shorter .8 second exposure shows more detail near the nucleus. Some movement of the nucleus in relation to the background stars can also be seen. This is an animated GIF file and may take some time to load:
For Comet Holmes images in 3-D CLICK HERE.
For other deep sky images taken with the Modified Digital Rebel CLICK HERE.