Print This PostThe Pinwheel Galaxy (M101) Imaged by Peter Campbell-Burns
Peter Campbell-Burns — By pcburns on September 22, 2009 at 9:48 pmM101, NGC 5457 was discovered by Pierre Méchain in March 27, 1781 was one of the last entries in Charles Messier’s catalog. It was one of the first “spiral nebula” identified as such, in 1851 by William Parsons, the third Earl of Rosse. Also visible is NGC 5474 (to the bottom of the image)NGC 5474 is an asymmetric spiral galaxy and is being dramatically disturbed by the gravitational effect of its much larger neighbor M101.
The Pinwheel Galaxy (M101) - click to enlarge
In addition to M101 and NGC 5474, there are another 7 galaxies visble in this image:
M101 Annotated Image - click to enlarge
The image was taken with a QSI 583 WSG through a Takahashi FSQ106 ED.
The total exposure time is 48 minutes (as 24 120 second subframes):
- 720 seconds luminance exposure (IR)
- 720 seconds exposures in R
- 720 seconds exposures in G
- 720 seconds exposures in B
Image processed by John Moore
Tags: ATIK 16HR, Deep Sky, fsq-106ed, Galaxy, M101, NGC 5457, NGC 5473, NGC 5474, NGC 5485, Peter Campbell-Burns, Pinwheel
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1 Comment
Isn’t it amazing what you can find when you Google your own name!!