Planetary Nebula Abell 46
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 34 (A55 34). 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 46 (A66 46). [331, 332]
Physical Properties
| Designations | PN G055.4+16.0: A 46, PK 55+16.1, A55 34, ARO 119, VV' 419 |
| Right Ascension (J2000.0) | 18h 31m 19s |
| Declination (J2000.0) | +26° 56' 17" |
| Dimensions | 63." (optical) |
| C-Star Designations | AG82 314, CSI +26 -18292, FB172, UBV 15775, V477 Lyr |
| C-Star Magnitude | U: 13.58, B: 14.69, V: 14.96 |
| C-Star Spectral Type | O9 k, O(H) |
| Discoverer | ABELL 1955 |
Finder Chart
The planetary nebula Abell 46 is located in the constellation Lyra. It is in opposition to the Sun on 28 June and can be observed from Switzerland from February to December.
