On June 28, 2005 a Type II supernova designated SN2005cs was discovered in M51, the Whirlpool Galaxy. For a view of the supernova, click here

 

The Details
Object
M51 The Whirlpool Galaxy in Canes Venatici
Optics
12.5" RCOS Ritchey-Chretien at f/6.9
Platform
Astro-Physics 1200 GTO
Camera
SBIG ST-10XME
Filters
Tru-Balance LRGB
Date
23 June 2004
Location
Mount Wilson Observatory, Mount Wilson CA
Exposure
L 6 x 600 sec 1x1 bin, RGB 3ea x 300 sec 2x2 bin
Software
Maxim DL/CCD, Registar, CCDSharp, Photoshop, NEAT Image
Notes

M51 is located about 31 million lights years from earth. This beautiful face-on spiral and its companion, NGC 4199 are gravitationally bound and locked in a deep space dance. Lord Rosse observed this object with his 72 inch speculum reflector from Birr Castle, Ireland in 1845 and reported it to have a spiral structure.

This image was featured in the Gallery section of the May 2005 issue of Sky & Telescope Magazine.

 

 

 

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No reproduction of these images are permitted without prior approval of the author.