Planetary Nebula Abell 45
History
The planetary nebula Abell 44 was discovered in 1955 by the American astronomer George Ogden Abell on the photo plates of the Palomar Observatory Sky Survey (POSS). In 1955 he published a first list of 13 globular clusters and the positions of 73 planetary nebulae. The PN was then listed as number 33 (A55 33). In 1966 Abell published a completed list including the size and description of the 86 planetary nebulae discovered on the POSS photo plates. The PN was then listed as nebula 45 (A66 45). [331, 332]
Physical Properties
| Designations | PN G020.2-00.6: A 45, PK 20-00.1, A55 33, VV' 415 |
| Right Ascension (J2000.0) | 18h 30m 17s a |
| Declination (J2000.0) | -11° 36' 54" a |
| Dimensions | 285." (optical) |
| C-Star Designations | AG82 313 |
| C-Star Magnitude | U: 20.5, B: 21.5, V: 21.1 |
| Discoverer | ABELL 1955 |
Finder Chart
The planetary nebula Abell 45 is located in the constellation Scutum. It is in opposition to the Sun on 27 June and can be observed from Switzerland from April to September.
