| Nebula | |
|---|---|
 | |
| Observation data: J2000epoch | |
| Right ascension | 09h 12m 26s |
| Declination | -42° 25′ 39″ |
| Constellation | Vela |
| Designations | PK 265+4.1, ESO 314-PN6,AM 0910-421,CS=13.8,HD 79384,IRAS 09105-4213,WEB 8618,PMN J0912-4225, 2MASS J09122664-4225397 |
| See also:Lists of nebulae | |
NGC 2792 is aplanetary nebula located in theconstellation Vela.[1] NGC 2792 was discovered by BritishastronomerJohn Herschel in 1835.[2]
With anapparent visual magnitude of 11.6,[3] you must use atelescope with an aperture of at least 200 mm to observe it.[4]
Two very similar distances are indicated on theSIMBAD database: 3.086 ± 0.617 kpc (~10,100 ly) and approximately 3050 pc (~9,950 ly).[5]
The apparent size of the nebula is 0.350′ × 0.315, which, given the distance of 3,086 ± 617 pc and through simple calculation, equates to an actual size of 1.02 ± 0.20 al × 0 .92 ± 0.18 ly.[5]
Two identical speed values are also indicated on SIMBAD, i.e. 14.0 ± 5.0 km/s. According to a more recent publication (2023) the speed of the nebula is 12.7 ± 8 km/s.[5]
The kinematic age of a planetary nebula can be estimated from its expansion speed. According to González-Santamaría and his colleagues, the expansion speed of NGC 2792 is 20 km/s, which gives it a kinematic age of 3.5 thousand years. According to a more recent publication, its expansion speed is 20.2 km/s.[6]
According to González-Santamaría, it has been approximately 50,860 years since the star left the asymptotic giant branch and the nebula enveloping it reached 1% of the mass of the progenitor.[6]
The visual magnitude of this star is equal to 16.74 and its mass is estimated at 1.163 solar masses. The radius of the nebula is estimated at 0.108 pc.[7]
{{cite web}}:Missing or empty|title= (help)| Stars |
| ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||
| Star clusters |
| ||||||||||
| Nebulae |
| ||||||||||
| Galaxies |
| ||||||||||
| |||||||||||
