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Dark Horse Observatory - Image Details: Pinwheel Galaxy
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Image Details: Pinwheel Galaxy

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Pinwheel Galaxy

Object/Name: (M101, (NGC5457, , PGC 50063; UGC 8981; MCG-9-23-28, IRAS 14013+5435; CGCG 272-21; KARA 610; Arp 26;) Image Details:
Type: Spiral Galaxy (Sc) Luminance:5.00 min. (22) – 110.00 min. 1x1
Constellation: Ursa Major Red:5.00 min. (15) – 75.00 min. 1x1
RA: 14 hours 03 minutes Green:5.00 min. (13) – 65.00 min. 1x1
Dec: +54 degreees 4 minutes Blue:5.00 min. (13) – 65.00 min. 1x1
Distance: 17.5 - 27.0 million light years Total Time:315 minutes
Magnitude: 7.9 mag   
Size: 28.8 x 26.9 arc minutes   
Imaging Dates: 9 June 2103 - 12 June 2013   
Location: Dark Horse Observatory, Kimberton, PA 19460 U.S.A.   
Equipment:
Telescope: Takahashi BRC-250 CCD: SBIG ST-10XME
Filter wheel: SBIG CFW-10 Mount: Astelco NTM-500
Rotator: None Focuser: Finger Lakes Instruments DF2
Filters: Astrodon Series E   
Software Used:
  CCDNavigator 3 Maxim DL
FocusMax CCDAutopilot 4
The Sky 6 CCDStack 2
PixInsight Photoshop CS4
FocusMagic, Topaz Labs - DeNoise and Detail Ron Wodaski's Gradient Xterminator
Excalibrator Noel Carboni's Astronomy Tools
Detailed Information:
I decided to try and image this object myself to see how it would look under brighter skies and with a smaller aperture. I was surprised at how nicely it turned out.
Messier 101 (M101, NGC 5457) also known as the Pinwheel Galaxy is a magnitude 8.3 face-on spiral galaxy in the constellation of Ursa Major, and is located at a distance of about 27 million light years. It has an apparent size of 28.8x26.9 arc minutes. This object was discovered by Pierre Méchain in 1781. It was cataloged later by Messier on 27 March 1781.
This galaxy is faint and difficult to see except under dark skies. It can be located between the tail of Ursa Major and Boötes. This also happens to be M102 which was a double observation by Messier. So technically you are seeing two Messier objects at once.
The image below is annotated to help you identifiy other objects in the FOV. I apologize for the overlapping labels, but I could not fix them.


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