Type | Double Star |
---|---|
Magnitude | 8.4 |
Size | 0.8' |
Right Ascension | 12h 22' 12.5" (2000) |
Declination | 58° 4' 58" N |
Constellation | Ursa Major |
Andrew Cooper
Jun 13, 1998 Pinal Peak, AZ (map)
20cm f/10 SCT
Conformed with finder chart from Burhnam's then located NGC4290 nearby, the galaxy is just on the edge of the 8" capability
William Herschel
Aug 5, 1799 Observatory House, Slough (map)
Not visible in the finder.
Charles Messier
Oct 24, 1764
[1780 and 1781] Two stars very close together & very small, placed at the root of the tail of the Great Bear: One has difficulty to distinguish them with an ordinary telescope of 6 feet. While searching for the nebula above the back of Ursa Major, reported in the book Figures des Astres, and which is supposed to be for 1660 at 183d 32' 41" right ascension, & 60d 20' 33" northern declination, which Messier couldn't see, he has observed these two stars.[1780 and 1781] Two stars very close together & very small, placed at the root of the tail of the Great Bear: One has difficulty to distinguish them with an ordinary telescope of 6 feet. While searching for the nebula above the back of Ursa Major, reported in the book Figures des Astres, and which is supposed to be for 1660 at 183d 32' 41" right ascension, & 60d 20' 33" northern declination, which Messier couldn't see, he has observed these two stars.― Connaissance des Temps, 1781
70 Ursae Majoris | NGC 4284 | NGC 4290 |
NGC 4335 | NGC 4358 | NGC 4362 |
NGC 4364 | Winnecke4 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
A complete list of credits and sources can be found on the about page