Deep Sky Object in Spring
M84 & M86 (Galaxies in Virgo)

Date & Time: Jan 30 2004, from 25:55 to 26:14 JST(+0900)
Composed 3 shots with 8 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Fujifilm FinePix S2 Pro
Location: Ooizumi vil., Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3024×2016)
CCD Sensitivity...ISO1600, White Balance...Auto

M84 (NGC4374) / Galaxy, type E1
R.A.12h 25m 3.7s (2000.0)
Dec.+12° 53' 15" (2000.0)
Apparent Size6.4×5.6'
Radial Velocity+1239km/s
Distance57 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC7494, MCG2-32-34,
M86 (NGC4406) / Galaxy, type E3
R.A.12h 26m 11.7s (2000.0)
Dec.+12° 56' 49" (2000.0)
Apparent Size8.9×5.8'
Radial Velocity+37km/s
Distance57 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC7532, MCG2-32-46,
These elliptic galaxies are positioned around center of the Virgo Cluster paralleling only 17 arc minutes in interval. Right and left ones in upper side in this picture have the Messier's numbers of M84 and M86, respectively. Both look like simple dimmed lump of light without any striking structures.
Those galaxies are positioned at the western edge of a famous galactic line, the Markarian's chain that is formed from ten or more galaxies. You can detect many faint galaxies around this field.



Copyright(c) 2004 by Naoyuki Kurita, All rights reserved.
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