Markarian Chain (group Of Galaxies In Virgo)

Member galaxies include M84 (NGC 4374), M86 (NGC 4406), NGC 4477, NGC 4473, NGC 4461, NGC 4458, NGC 4438 and NGC 4435.

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