Galactic Nebula IC 2162
History
The nebula IC 2162 was discovered visually by Edward E. Barnard on 30 November 1888 with the 12-inch refractor at Lick Observatory. He first logged in his notebook «Found a very difficult nebula close f and involving a 10m star.» He added the comments «very faint nebulosity, pretty large, roundish, densest part following the 10m star.» Barnard notified Dreyer directly of the discovery. [364]
In 1946 the German-American astronomer Rudolph Minkowski has identified IC 2162 as emission nebula Min 2-61 and noted: «IC 2162 and the similar (but fainter) nebula which preced it are probably the brightest parts of one very faint and large nebulosity.» [454] In the same year the Swedish astronomer Sven Cederblad published a study of bright diffuse galactic nebulae where he listed IC 2162 as Cederblad 72. [130] In the early 1950s the Russian astronomers Grigory Abramovich Shajn and Vera Fedorovna Gaze at the Simeis Observatory on the Crimean Peninsula listed these nebulae as Simeis 35, 36, and 37. [402] In 1959 American astronomer Stewart Sharpless published his second catalogue of 313 H-II regions and listed there these nebulae as Sh 2-254 ... Sh 2-258. [310] In 1965 Beverly T. Lynds published her «Catalogue of Bright Nebulae» that she found on photo plates of the same sky survey. She listed these nebulae with the entries: LBN 858 and LBN 859. [270]
Physical Properties
| Name | Type | RA (J2000.0) |
Dec (J2000.0) |
Size ['] |
Identifiers |
|---|---|---|---|---|---|
| Sh 2-254 | HII | 06h 11m 59s | +18° 03' 18" | 4P 1; GRS G192.51 -00.15; IRAS 06095+1800; LBN 192.48-00.21; LBN 858; SH 2-254; [TP72] 39 | |
| IC 2162 | HII | 06h 13m 04s | +17° 58' 44" | 3 × 3 | 4P 2; GAL 192.60-00.05; GRS G192.63 -00.02; IC 2162; LBN 192.63-00.02; LBN 859; Min 2-61; SH 2-255; [T70] 15; [TP72] 40 |
| Sh 2-256 | HII | 06h 12m 36s | +17° 56' 54" | 4P 3; GRS G192.60 -00.13; IRAS 06096+1757; SH 2-256 | |
| Sh 2-257 | HII | 06h 12m 44s | +17° 59' 33" | 2.28 × 2.35 | 4P 4; GRS G192.58 -00.08; RAFGL 896; SH 2-257; WB89 774; [ABB2014] WISE G192.578-00.083 |
| Sh 2-258 | HII | 06h 13m 28s | +17° 55' 30" | 4P 5; GRS G192.74 -00.04; PP 57; SH 2-258 |
Finder Chart
The H-II region IC 2162 (Sh 2-254 ... Sh 2-258) is located in the constellation Orion. It is best observed in the months of September to March.
