HD 37040
DSS image of HD 37040
Overlaid DSS image of HD 37040, 60' x 60' with north at top and west to the right

Aladin viewer for the region around HD 37040
Σ 750, BD-04 1186, HR 1898, WDS J05355-0422, SAO 132325, GSC 04774-00937, HIP 26257

Type  Star
Magnitude  6.38
Right Ascension  5h 35' 31.1"  (2000)
Declination  4° 21' 51" S
Constellation  Orion
Classification  B2V
Observing Notes

Andrew Cooper
Oct 23, 2022    Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x
Seeing: 6 Transparency: 7 Moon: 0%

Blue-white with an 8th magnitude companion visible 4" east, on the eastern margin of the bright coarse cluster NGC 1981 in the Orion Nebula complex

Gaia DR3 data exhibits similar parallax and proper motion in the pair

Captain William Henry Smyth
Oct 16, 1835    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

A delicate double star in the wide-spread cluster on Orion's sword. A 6, lucid white; B 9, pale blue. The principal members of this group of stars, are of the 6th and 7th magnitudes, with some smaller; and from their brightness and disposition form a capital test for the light of a telescope. It was examined by H., and entered on his Catalogue of 1830; whence it may lay claim to being an aggregated and connected assemblage, and, comparatively speaking, not very remote from us.
― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Other Data Sources for HD 37040
Associated objects for HD 37040
Nearby objects for HD 37040

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

HD 37040