Planetary Nebula Abell 56
History
This planetary nebula 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 44 (A55 44). 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 56. [331, 332]
Physical Properties
| Designations | PN G037.9-03.4: A 56, PK 37-03.2, A55 44, ARO 146, VV' 483 |
| Right Ascension (J2000.0) | 19h 13m 07s |
| Declination (J2000.0) | +02° 52' 49" |
| Dimensions | 181." (optical) |
| C-Star Designations | AG82 352 |
| C-Star Magnitude | B: 19.7 |
| Discoverer | ABELL 1955 |
Finder Chart
The planetary nebula Abell 56 is located in the constellation Aquila. It is in opposition to the Sun on 8 July and can be observed from Switzerland from June to September.
