Hickson 88 Galaxy Cluster
Hickson 88 (description below from Sloan Digital Sky Survey Website)
"
Starting at the right center of the image and going up to the left are NGC 6975, 6976, 6977 and 6978. The
lower two are type Sbc galaxies while NGC 6978 (top) is a more tightly wound Sb. NGC 6977 is a barred
spiral SBb, just like our own galaxy. These four, which reside in the constellation Aquarius, show no signs of
previous or current interactions. In the left-most three you can see the rate of star formation neatly increase as
you go up."

This image was obtained with 50 minutes of clear luminance unbinned combined with 15 minutes red, 20 minutes
green, and 30 minutes blue exposures binned 2x2.  An ST10XME camera was used through a Meade 12"
LX200R at f/7.
Music:  Vivaldi's Four Seasons - Summer
click on image for full size view