M90 = NGC4569 ( 12h 36.8m +13°10´, 9.5 mag. )
This large spiral galaxy in Virgo was discovered by Messier on March 18, 1781. Streaching across some 150,000 ly, this is one of the larger spirals in Virgo cluster. To find M90, look 39' NNE of M89 (see Virgo Cluster Map and the detailed chart below). M91 is visible about 1°20' NNW in the same low power field.
The above image was taken on December 20, 1998 from Sooke, BC. Cookbook 245 LDC CCD camera was used on Celestron Ultima 8 f6.3 telescope autoguided with Cookbook 211 LDC CCD camera on piggybacked 500mm f8 telephoto lens. Four white integrations (240 sec. each) were processed with AIP4WIN.
North is to the right.
Map created in Guide 7.0 - 2° x 3°. North is up.
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© Jan Wisniewski