Type | Star |
---|---|
Magnitude | 4.952 | Right Ascension | 2h 12' 22.3" (2000) |
Declination | 30° 18' 11" N |
Constellation | Triangulum |
Classification | G0III+G5III |
Andrew Cooper
Nov 13, 2020 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 5 Transparency: 6 Moon: 0%
A close double with a 5th magnitude yellow primary, the companion is 1.5 magnitudes fainter and blue-white visible 4" east, both A and B are non-visual binaries for a quadruple system
Captain William Henry Smyth
Dec 28, 1838 No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827
A fine close double star, under the base of the Triangle, and 4½° south of β, on a line leading through β to γ Andromedæ. A 5½, topaz yellow; B 7 green. This exquisite object is H II 34, by whom it was likened to α Herculis, "but smaller, and not so bright." From the existence of an angular difference of 7°39' between the position of H. and that of H. and S., an orbital change was suspected; but all the recent measures are against it:
H. Pos. 85°37' Dist. 3".5 Ep. 1781.77
H. and S. 77°58' 3".88 1821.94
Σ. 77°50' 3".598 1830.97
D. 78°58' 3".68 1832.94
[WDS 69° 3".70 2016 ]― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Σ 239 | 10 Trianguli | 5 Trianguli |
AD Trianguli | DL Trianguli | IC 200 |
NGC 805 | NGC 807 | NGC 816 |
NGC 819 | NGC 826 | NGC 843 |
NGC 860 | NGC 865 | SAO 75264 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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