NGC 772 - a spiral galaxy in the constellation of Aries NGC 772 was discovered on 29 November 1785 by the English astronomer William Herschel . This is the 10th volume of a spiral galaxy of type SA (s ) b in the constellation Aries. In the catalog Dreyer has been described as an object bright , very large, round, shining gradually toward the center , giving separate. Based on the speed of the recession , which is 2472 km / s, estimated the distance of the galaxy from the Solar System , it amounts to about 115 million light years. This distance is also confirmed by the distance that separates NGC 770 from the solar system. Both NGC 772 and NGC 770 is likely to form a pair of mutually interacting galaxies. Taking into account the angular dimensions of NGC 772, which amount to 7.2 to 4.3 arcmin , the diameter of the galaxy is estimated to be about 240 thousand light years. NGC 772 observed using the 45 -cm reflector appears to us as an object : bright , very large, elongated in a ratio of 4:3 in the axis WNW-ESE . It has unbalanced the galactic halo , wider from the north west and very strongly marked elongated arm , mounted on the north side of the galaxy and extending August on the northern side of the galaxy. Creates a pair as mentioned above with a much weaker elliptical galaxy NGC 770 distant about 3.5 minutes to the south to south-west. Alternative designations : NGC 772, K73 80 TC 646, [ M98c ] 015635.3 184550 , APG 78 , LEDA 7525 UGC 1466 [ T76 ] 151B , HIPASS J0159 +18, 2MASX J01591958 1,900,271 , UZC J015919.8 190030 , IRAS 01565 1845 , MCG +03-06-011 , From 461-18 , IRAS F01565 1845 , PSCz Q01565 1845 , With 0156.5 1846 , ARP 78, CGCG 461-018 , CGCG 0156.5 1846 , 2MASXi J0159201 190024 , PGC 7525 [ WB92 ] 0156 1848 , NVSS J015920 190028 , LGG 040: [ G93 ] 002, [ M98j ] 032 NED02 , [ RHM2006 ] SFGs 006 [ WGB2006 ] _b 18430 015624 , H I- 112 , h 181 , GC 463
Posted on: Tue, 22 Apr 2014 19:30:33 +0000