M101 The Pinwheel Galaxy

M101 was among the first "spiral nebulae" identified as such. In smaller telescopes is visible only the central region of this galaxy. On images, M101 is revealed as one of the most prominent Grand Design spirals in the sky. The distance of M101 has been determined by the measurement of Cepheid variables with the Hubble Space Telescope in 1994/95 to be about 24 +/- 2 million light years and it has a linear diameter of over 170,000 light years .

 

Image is taken with Celestron Pixcel 237 CCD Camera through a C8 at f:3,3. LRGB image is assembled of luminance image (25x30 second) and RGB image ( Red 11x30 second, Green 10x30 second and Blue 15x30 second). Processed in CCDSoft v5, AIP for Win and Photoshop.

 


(C) Copyright 1996 - 2017 by Andjelko Glivar. All rights reserved. This material may not be published in any form without permission.

 

 


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