NGC 7048 is a planetary nebula in the constellation of Cygnus. The bright star to the lower left of the nebula is a magnitude 10.5 star, designated TYC 3589-4652-1. The nebula is slightly brighter along the west and east sides.[4] This planetary nebula has an apparent magnitude of 12.1.[3] NGC 7048 was discovered by Édouard Stephan on 19 October 1878 using a 31.5-inch reflector.[5]
| Emission nebula | |
|---|---|
| Planetary nebula | |
 | |
| Observation data: J2000 epoch | |
| Right ascension | 21h 14m 15.25s[1] |
| Declination | +46° 17′ 16.1″[1] |
| Distance | 5260 ly (1613[2] pc) |
| Apparent magnitude (V) | 12.1[3] |
| Apparent diameter | 1.02′ |
| Constellation | Cygnus |
| Designations | PK 088-01 1, PN ARO 41, IRAS 21124+4604 |
The central star of NGC 7048 is thought to be a white dwarf. The planetary nebula itself has an elliptical shape; from its low surface brightness it is thought to be highly evolved.[4]
References
External links
- NGC 7048 Archived 2010-01-17 at the Wayback Machine
- NGC 7048 from Kopernik.org