Markarian Chain (Group of Galaxies in Virgo)

Markarian's Chain is a stretch of galaxies that forms part of the Virgo Cluster. It's 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 it in the mid 1970s. 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′.

Telescope: Skywatcher ED80 & William Optics FF/FR 0.8 II
Mount: HEQ5 Pro
Camera: QHY8
Filter: IDAS LPS
Guidescope: Skywatcher 70/500mm
Guide with LVI SmartGuider
Exp. Time: 3 hours (9*20 min subframes), bin 1x1
Calibration Frames: 50 flat, 50 bias, 10 darks
Capture: Nebulosity 2.2.5
Stack: Nebulosity 2.2.5
Processing: Photoshop CS3
Date: 9 April 2010
Location: Salamina, GR

Markarian Chain Wiki