NGC7331 and Stephen's Quintet


"NGC 7331 (also known as Caldwell 30) is a spiral galaxy about 40 megalight-years (12 Mpc) away in the constellation Pegasus. It was discovered by William Herschel in 1784. NGC 7331 is the brightest member of the NGC 7331 Group of galaxies. The galaxy is similar in size and structure to the galaxy we inhabit, and is often referred to as ""the Milky Way's twin"", although recent discoveries regarding the structure of the Milky Way may call this similarity into doubt

Stephan's Quintet in the constellation Pegasus is a visual grouping of five galaxies of which four form the first compact galaxy group ever discovered. The group was discovered by Edouard Stephan in 1877 at Marseille Observatory. The group is the most studied of all the compact galaxy groups. The brightest member of the visual grouping is NGC 7320 that is shown to have extensive H II regions, identified as red blobs, where active star formation is occurring."

Equipment and processing

Telescope: Meade SN6

Mount: Orion Atlas

Camera: ST 8300M

Filters: Baader LRGB

Guiding: PHD

Processing: PixInsight

Capture software: Maxim

Exposures: LRGB: 13x300

Location: Hatteras,NC


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