39 Lyncis
DSS image of 39 Lyncis
Overlaid DSS image of 39 Lyncis, 60' x 60' with north at top and west to the right

Aladin viewer for the region around 39 Lyncis
39 Lyn
Σ 1340, BD+50 1633, HD 80608, WDS J09225+4933, SAO 42825, GSC 03428-00477, HIP 45974

Type  Star
Magnitude  6.9
Right Ascension  9h 22' 32.2"  (2000)
Declination  49° 32' 41" N
Constellation  Ursa Major
Classification  B9
Observing Notes

Captain William Henry Smyth
Nov 29, 1832    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

A neat double star, on the Great Bear's right leg, and about 2°½ to the south-south-west of θ in that constellation; whence, but for the map-makers, it must have pertained to Ursa Major. A 6½, lucid white; B 9, sapphire blue. It has required some trouble to trace unequivocally the identity of this object. Mr. Baily diminished its RA above 3½', in order to correspond with modern observations, as there appeared to be some error in the British Catalogue reduction of Feb. 16, 1704. Piazzi, Note 47 to Hora IX., says that, by Flamsteed and La Lande, the proper annual motion in RA of this star would be -0".8, which he vainly tried to confirm from Bradley, who observed it on March 14, 1757; and he therefore concluded that some error of RA had crept in here, and at 40 Lyncis.

I gave great attention to the subject; and as 40 Lyncis is decidedly a single star, I make no doubt whatever that this is 84 ♅. III.; nor of H.'s having made a wrong entry, in marking it No. 1334 of the Dorpat Catalogue. It is No. 596 of S.; but indeed the original measures undeniably confirm this, being:

Pos. 318° 12' Dist. 7".18 Ep. 1782.87
[WDS 319° 6".3 2018 ]
― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Other Data Sources for 39 Lyncis
Nearby objects for 39 Lyncis
7 objects found within 120'
37 Lyncis NGC 2841 NGC 2854
NGC 2856 NGC 2857
UGC 4922
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

39 Lyncis