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

Aladin viewer for the region around Eta Herculis
η Her, 44 Her
Σ 2093, BD+39 3029, HD 150997, HR 6220, WDS J16429+3855A, SAO 65504, GSC 03070-01595, HIP 81833

Type  Star
Magnitude  3.5
Right Ascension  16h 42' 53.8"  (2000)
Declination  38° 55' 20" N
Constellation  Hercules
Classification  G7IIIFe-1
Observing Notes

Captain William Henry Smyth
Aug 26, 1835    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

A bright star with a distant companion, on the left thigh of Hercules, and nearly in a line with the last two objects. A 3, pale yellow; B, only inferred; C 10, dusky. The proper motion in space of the principal is thus valued :
    P....  RA -0".24  Dec. -0".09
B.... +0".08 -0".07
A.... +0".07 -0".07
[Hipparcos +0".03541 -0".08530]
Here A forms No. 2093 of the Dorpat Catalogue, and was described in 1827 as a first-class "vicinissimae," like ζ Herculis and ν Coronae; and its components were registered of the 4th and 8th magnitudes. Many were the efforts I made at distinguishing a proximate comes, but without effect; and when Σ.'s measures arrived in 1837, finding it was styled "simplex," I relinquished the attack. Having, however, heard of its subsequent elongation, I re-examined it at Hartwell, and think I may safely give the above details, as tolerable estimations of an egg-shaped object.

This star is sufficiently conspicuous to the north-east of Gemma, at about 16° distance; and it is also 19° from Wega, on its western parallel; it forms an equilateral triangle with its own ζ and π.
― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Other Data Sources for Eta Herculis
Nearby objects for Eta Herculis
4 objects found within 120'
3C345 Dolidze Dzimselejsvili 6
NGC 6212

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

Eta Herculis