Galaxy NGC 2775
History
On 19 December 1783 William Herschel found a «bright nebula» which he logged as I 2 (NGC 2775) and noted: «considerably bright, considerably large, very gradually brighter in the middle, having a nucleus, round» [463] The other two nearby faint and small galaxies in (NGC 2773 and NGC 2777) were discovered on 6 March 1864 by the German astronomer Albert Marth in Malta, using William Lassell's 48-inch reflector. [277]
Physical Properties
NGC 2775 is an interesting spiral galaxy with a large, smooth central bulge and a somewhat smooth disk that resembles a lenticular galaxy. It also features a complex spiral structure with multiple arms between these two regions. This spiral structure likely houses a significant number of massive stars, given the galaxy's average of almost two supernova events per decade in the last 30 years. [196]
| Name | RA | Dec | Type | bMag | vMag | B-V | SB | Dim | PA | z | D(z) | MD | Dreyer Description | Identification, Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NGC 2773 | 09 09 44.1 | +07 10 27 | Gx (S?) | 15.0 | 14.1 | 0.9 | 12.3 | 0.7 × 0.3 | 83 | 0.018339 | 77.46 | vF, S, lE | GC 5459; UGC 4815; MCG 1-24-4; CGCG 34-5; NPM1G +07.0175; IRAS 09070+0722 | |
| NGC 2775 | 09 10 20.1 | +07 02 14 | Gx (Sab) | 11.0 | 10.1 | 0.9 | 12.9 | 4.3 × 3.3 | 155 | 0.004503 | 19.02 | 17.000 | cB, cL, R, vgvsmbM, r | WH I 2; h 564; GC 1771; UGC 4820; MCG 1-24-5; CGCG 34-6; KARA 309 |
| NGC 2777 | 09 10 41.8 | +07 12 26 | Gx (Sab) | 14.1 | 13.3 | 0.8 | 12.5 | 0.7 × 0.6 | 165 | 0.004963 | 20.96 | F, S | GC 5460; UGC 4823; MCG 1-24-6; CGCG 34-8; NPM1G +07.0176; IRAS 09080+0724 |
Finder Chart
The galaxy NGC 2775 is located in the constellation Cancer. It is best observed from October to May.
