Deep Sky Object in Spring
The Virgo Cluster

Date & Time: Mar 17 2007, from 24:14 to 27:17 JST(+0900)
Mosaic of 9 flames of 4 shots composed with 4 minutes exposed
Optical: TAMRON SP f=300mmF2.8, Aperture: F3.5
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Nikon D70 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3008×2000)
CCD Sensitivity...ISO1000

Virgo Cluster
R.A.12h 32m
Dec.+11° 30'
Apparent Sizeabout 600'
# of galaxies>2500
Radial Velocity+895km/s
Magnitude -
Distance52 million light yrs.
Supergalactic clusterVirgo
Perhaps you will notice that there are many indexes of galaxies in the field of star chart of Virgo to Coma Berenices. These dozens of galaxies are distributed in the spring sky of about 10 degrees diameter. "The Virgo Galaxy Cluster", which contains about 2500 galaxies in a span of 12 million light years, is considered to be about 40 to 50 million light years distant. This can be said the cluster is "extraordinarily close" to us. So we can observe many of members only with amateur's telescopes.
This image presents around the central region of Virgo Cluster, includes several Messier's galaxies relatively bright, an elliptical galaxy of M87, a spiral of M88, and so on.

And I've provided a wide field image of Virgo Cluster including a picture above. This image covers the sky field of 10 degrees in east-west direction and 6 degrees in north-south.

Click Here !

Warning !...This image has very large-size ! (with 1600×1200 pixels, 293KB JPEG Format)
Please understand it may take much time to download that.

Quasar 3C273

Markarian's chain

Copyright(c) 2007 by Naoyuki Kurita, All rights reserved.
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