RA center: 186.595 degrees
DEC center: 12.833 degrees
Pixel scale: 0.367 arcsec/pixel
Orientation: 179.709 degrees
Field radius: 0.512 degrees
Markarian's Chain in the Virgo Cluster
This has been for sure the hardest assembling/processing so far.
It is a composition of 4 fields of view from the Subaru Telescope enriched with Hubble Space Telescope data and data from the Very Large Telescope at Cerro Paranal for all the main galaxies in the field.
RGB data kindly granted by Giovanni Paglioli.
The Virgo Cluster (VC) is a cluster of galaxies whose center is 53.8 ± 0.3 Mly (16.5 ± 0.1 Mpc) away in the constellation Virgo. Comprising approximately 1300 (and possibly up to 2000) member galaxies, the cluster forms the heart of the larger Virgo Supercluster, of which the Local Group (LG) is an outlying member. However, the LG experiences the mass of the VC as the Virgocentric flow. It is estimated that the VC's mass is 1.2×1015 M☉ out to 8 degrees of the cluster's center or a radius of about 2.2 Mpc.
Many of the brighter galaxies in this cluster, including the giant elliptical galaxy Messier 87, were discovered in the late 1770s and early 1780s and subsequently included in Charles Messier's catalogue of non-cometary fuzzy objects. Described by Messier as nebulae without stars, their true nature was not recognized until the 1920s.
The cluster subtends a maximum arc of approximately 8 degrees centered in the constellation Virgo. Many of the member galaxies of the cluster are visible with a small telescope. Its brightest member is the elliptical galaxy Messier 49; however its most famous member is the also elliptical galaxy Messier 87, that unlike the former is located in the center of the cluster.
Subaru frequency: W-C-RC
Subaru panels: approx. 200
HST frequency: 850nm LP
HST objects: M84, M86, NGC4387, NGC4402
VLT objects: NGC4438, NGC4435
Overall copyright: Colombari/Paglioli
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