Imaging telescope or lens: Meade Series 5000 80mm Apo
Imaging camera: Canon EOS 500D / Digital Rebel T1i
Guiding telescope or lens: Orion USA 80mm Short-tube
Guiding camera: Orion StarShoot AutoGuider
Accessory: Astro-Tech 2" Field Flattener
Dates: July 8, 2013
Integration: 2.0 hours
Avg. Moon age: 0.19 days
Avg. Moon phase: 0.04%
Astrometry.net job: 93172
RA center: 186.760 degrees
DEC center: 12.868 degrees
Pixel scale: 2.012 arcsec/pixel
Orientation: -88.984 degrees
Field radius: 1.520 degrees
Locations: Pousada dos Anões, Alto Paraíso de Goiás, Goiás, Brazil
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. (Wikipedia)
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