Imaging telescope or lens: TEC-140
Imaging camera: Canon 60D Unmodded
Mount: AP1200DA Stepper Version
Guiding telescope or lens: Celestron C-60 60MM F15 Refractor
Guiding camera: MEADE DSI1 Guider
Dates: April 28, 2014
Integration: 2.3 hours
Avg. Moon age: 28.75 days
Avg. Moon phase: 0.68%
Astrometry.net job: 230780
RA center: 187.008 degrees
DEC center: 13.035 degrees
Pixel scale: 0.899 arcsec/pixel
Orientation: 178.416 degrees
Field radius: 0.781 degrees
Locations: Home Observatory, Tucson, AZ, United States
Markarian's Chain is a stretch of galaxies that forms part of the Virgo Cluster. It is called a chain because, when viewed from Earth, the galaxies lie along a smoothly curved line. It was named after the Armenian astrophysicist, B. E. Markarian, who discovered their common motion in the early 1960s. Member galaxies include M84 (NGC 4374), M86 (NGC 4406), NGC 4477, NGC 4473, NGC 4461, NGC 4458, NGC 4438 and NGC 4435. It's located at RA 12h 27m and Dec +13° 10′.
At least seven galaxies in the chain appear to move coherently, although others appear to be superposed by chance.
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