"The sky is the ultimate art gallery just above us." - Ralph Waldo Emerson (1803 - 82)
Astrophotography by Jason Jennings

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Galaxies :: Grus Triplet

Grus Triplet


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         Object Grus Triplet
         Comment Located in the constellation Grus, three spiral galaxies located very close to each other interact. When galaxies are close enough, a mutual gravitational attraction can result, often altering the appearance and in some cases the composition of their systems. An example of this is the galaxy center of frame, NGC7582. This barred spiral galaxy exhibits tidal tails extending towards the two neighbouring galaxies (NGC7590 and NGC7599) at top left and another galaxy below which is not present in the frame (NGC7552).

The image is a LRGB composite. Data acquired by Alvin Jeng of Lightbuckets, processed by Jason Jennings.
         Optics RCOS 14.5" F/9 (3315mm FL)
         Camera SBIG STL-11000M - 1x1 bin (image scale .56 arcsec/pix)
         Mount Paramount ME
         Exposure Total exposure time: 12.6 hours (L:260min,R:160min,G:150min,B:190min)
         Date 31/10/2008


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