Iota Trianguli
DSS image of Iota Trianguli
Overlaid DSS image of Iota Trianguli, 60' x 60' with north at top and west to the right

Aladin viewer for the region around Iota Trianguli
ι Tri, 6 Tri
Σ 227, BD+29 371, HD 13480, HR 642, WDS J02124+3018AB, SAO 55347, HIP 10280

Type  Star
Magnitude  4.952
Right Ascension  2h 12' 22.3"  (2000)
Declination  30° 18' 11" N
Constellation  Triangulum
Classification  G0III+G5III
Observing Notes

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
Other Data Sources for Iota Trianguli
Nearby objects for Iota Trianguli
Credits...

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

Iota Trianguli