| Type | Open Cluster |
|---|---|
| Magnitude | 6 |
| Size | 12' |
| Right Ascension | 5h 36' 17.7" (2000) |
| Declination | 34° 8' 27" N |
| Constellation | Auriga |
| Description | Cl, B, vL, vRi, lC, *9..11 |
| Classification | II 3 m |
Andrew Cooper
Oct 4, 2025 Waikoloa, HI (map)
15cm f/4 Newtonian, Makaʻiki Mk2 @ 67x
Seeing: 6 Transparency: 7 Moon: 0%
A very rich collection of 9th to 13th magnitude stars in a 10' area, bright and obvious even in a region of very rich galactic starfield, fully resolved, several notable chains of stars radiating from the body of the cluster, the entire region is spectacular with the bright clusters M38, NGC 1907, and IC 417 just to the west
Andrew Cooper
Jan 11, 2023 Waikoloa, HI (map)
11.4cm f/4 Newtonian, Kinipōpō @ 18x
Seeing: 6 Transparency: 6 Moon: 0%
A bright rich cluster in a spectacularly rich region that includes M38, NGC 1907 and much more, rich, partially resolved, bright and obvious in the RFT, a notable radial pattern of brighter members superimposed upon the cluster
Andrew Cooper
Feb 19, 2018 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 92x
Seeing: 6 Transparency: 6 Moon: 20%
A bright obvious cluster, coarse, fully resolved, about 20' in diameter, a few loose chains of stars radiate from the center
Andrew Cooper
Jan 4, 2015 Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" Gypsy @ 80x
Seeing: 6 Transparency: 6 Moon: 0%
Bright, coarse, fully resolved, a hundred or more members scattered in a very distinct cluster about 10' in diameter
Andrew Cooper
Oct 21, 2006 TIMPA, Avra Valley, AZ (map)
12x36 Canon Image Stabilized Binoculars
Bright, smaller than M37 and M38, resolved, in a very nice field, M37 one field east, M38 less than a field (3°) west
Andrew Cooper
Sep 30, 2005 Gila, New Mexico (map)
90mm F/12 APO Violet Haze
Smaller than nearby M37 or M38, coarse, but brighter than either, sparse, a few dozen stars in a circular clump, easy and bright in 9x63 binoculars
Rev. T.W. Webb
May 19, 1885 Hardwick, Herefordshire, England (map)
Beautiful assemblage of stars 8 th 14 mg., very regularly arranged. 2° f φ.― Celestial Objects for Common Telescopes, T. W. Webb, 1917
Captain William Henry Smyth
Sep 16, 1836 No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827
A neat double star in a splendid cluster, on the robe below the Waggoner's left thigh, and near the centre of the Galaxy stream. A 8, and B 9, both white; in a rich though open splash of stars from the 8th to the 14th magnitudes, with numerous outliers, like the device of a star whose rays are formed of small stars. This object was registered by M. in 1764; and the double star, as H. remarks, is admirably placed, for future astronomers to ascertain whether there be internal motion in clusters. A line carried from the central star in Orion's belt, through ζ Tauri, and continued about 13° beyond, will reach the cluster, following φ Aurigæ by about two degrees.― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Charles Messier
Jan 2, 1758
Cluster of stars in Auriga, near the star Phi: with an ordinary telescope of 3.5 foot one has pain to distinguish the stars, the cluster contains no nebulosity. Its position determined from Phi.― Connaissance des Temps, 1781
| Barnard 226 | Barnard 34 | Berkeley71 |
| Chi Aurigae | Dolidze 20 | HD 36574 |
| IC 425 | Messier 38 | NGC 1931 |
| Sh2-231 | Sh2-235 |
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