SOCO IMAGE GALLERY


 

NGC 147 and NGC 185     

NGC 147 and NGC 185 are two small elliptical galaxies that are satellites of M 31, the Andromeda Galaxy. In my image, NGC 185 is on the left, while NGC 147 is on the right. NGC 147 and NGC 185 are located in the sky around 6 degrees north of M 31 in the neighboring constellation Cassiopeia, and are separated by around 1 degree. NGC 185 is the brighter of the two (visual magnitude 10.1) and lies at a distance of around 2.05 million LY from us. NGC 147 has a visual magnitude of 10.5 and lies at a distance of around 2.53 million LY. Research suggests that these two small galaxies form a stable binary system with an orbit around M 31 that does not result in their plunging into the larger spiral galaxy in the forseeable future.
To produce the image shown above, I mosaiced two separate color composite images, with each color composite image created from six 7-minute exposures in the red, green and blue spectral bands.

Date(s) Acquired: 28 and 29 October 2014
Telescope: Orion 120mm EON Apochromatic Refractor
Camera: QSI Model 583

 

   Exposure Time (min) 
   Number of Exposures
   RGB
   7
   Hα
   -
   Hβ
   -
   OIII
   -
   RGB
   6*2
   Hα
   0
   Hβ
   0
   OIII
   0

 

Processing:
Master red, green, and blue images created using SuperSIAM.
Color composite image created using Basic Processing Procedure III.
Color composite image contrast-stretched using Adobe Photoshop.
Individual color composite images (2) mosaiced using Adobe Photoshop.




 

 

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