Type | Binary Star |
---|---|
Magnitude | 5 | Right Ascension | 5h 22' 50.0" (2000) |
Declination | 3° 32' 40" N |
Constellation | Orion |
Description | Binary 5.0/7.2 32" |
Andrew Cooper
Oct 25, 2020 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 7 Transparency: 6 Moon: 25%
A pretty binary, widely spaced, a bright 5.0 magnitude blue-white primary HD 35149 and a 6.7 magnitude companion HD 35148 30" northeast
Captain William Henry Smyth
Mar 4, 1835 No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827
A neat double star, in Orion's right arm-pit; where a line carried from the Pleiades through the Hyades, will find it about 3° south of Bellatrix. A 5, white; B 7, pale grey. This is a fine object for telescopes of moderate power, and is 84 ♅. IV. It has been thus measured:♅. Pos. 30°27' Dist. 26".16 Ep. 1782.75Hence, taking all the probable errors of observation into consideration, there is perhaps no appreciable change in position; nor indeed in distance, since H. has shown from his father's MSS. that, at the above date, the stars were 32".80 apart.
H. and S. 27°20' 33".04 1822.05
Σ. 28°15' 31".71 1831.44
[WDS 29° 32".00 2019 ]― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
21 Orionis | 23 Orionis A | 23 Orionis B |
IC 409 | IC 412 | |
IC 414 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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