NGC 1931
DSS image of NGC 1931
Overlaid DSS image of NGC 1931, 30' x 30' with north at top and west to the right

Aladin viewer for the region around NGC 1931
H I 261, h 355, GC 1137, Ced 49, C 0528+342, LBN 173.92+00.24, LBN 810, OCl 441, OCl 441.0

Type  Open Cluster w/Nebulosity
Magnitude  10.1
Size  3' x 3'
Right Ascension  5h 31'  (2000)
Declination  34° 13' N
Constellation  Auriga
Description  vB, L, R, B***in M
Classification  I 3 p n:b
Observing Notes

Andrew Cooper
Sep 30, 2005    Gila, New Mexico (map)
90mm F/12 APO Violet Haze

Very small, faint, a small hazy patch with a couple embedded stars, difficult target for the 90mm APO

Andrew Cooper
Jan 12, 2002    Las Cienegas NCA, Pima Co., AZ (map)
46cm f/4.5 Deep Violet

Small nebulosity surrounding several stars

Rev. T.W. Webb
May 19, 1885    Hardwick, Herefordshire, England (map)
24cm Reflector

Haze surrounding four minute stars, 9-1/3in speculum., '73, '76. H., 3 only in 3 observations. D'A., 5; E. of Rosse 6; oval with branches.
― Celestial Objects for Common Telescopes, T. W. Webb, 1917

Captain William Henry Smyth
Oct 19, 1835    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

A resolvable nebula, on the lower garment of Auriga, about 2m.5 sf 38 Messier. This very curious object was discovered by ♅. in February, 1793, who remarked that it "seems to have one or two stars in the middle, or an irregular nucleus." This object was next examined by H., No. 355, who described it as a nebula including a triple star, surrounding them like an atmosphere.

With these premonitions, I attacked it under most favourable circumstances. The nebula is situated in a rich field of minute stars, with five of the lOth-magnitude, disposed in an equatoreal line above, or to the south of it, and preceded by a bright yellow 7½ magnitude star in the same direction [HD 36042]. After intently gazing, under moderate power, the triangle rises distinctly from the star-dust, and presents a singular subject for speculation.
― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Other Data Sources for NGC 1931
Nearby objects for NGC 1931
5 objects found within 60'
Dolidze 20 HD36574 IC 417
Phi Aurigae Stock8
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

NGC 1931