Planetary Nebula Abell 15
History
The planetary nebula Abell 15 (PK 233-16.1) was discovered in 1964 by the American astronomer George Ogden Abell on the photo plates of the Palomar Observatory Sky Survey (POSS). 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 number 14 (A66 14). He described the morphological appearance of the PN as «B» (a homogeneous ring). [332]
The designation PK 233-16.1 originates from the two Czechoslovak astronomers Luboš Perek and Luboš Kohoutek, who in 1967 compiled a catalog of all the planetary nebulae of the Milky Way known at the time. [146]
Physical Properties
| Designations | PN G233.5-16.3: A 15, PK 233-16.1, ARO 221, ESO 490-01 |
| Right Ascension (J2000.0) | 06h 27m 02s |
| Declination (J2000.0) | -25° 22' 55" |
| Dimensions | 34." (optical) |
| Radial Velocity | +35.0 ± 3.0 km/s |
| C-Star Designations | AG82 64, CSI -25-06250, UBV 6450 |
| C-Star Magnitude | B: 15.89, V: 16.16 |
| C-Star Spectral Type | sd Op, ;O(H) |
| Discoverer | ABELL 1964 |
Finder Chart
The planetary nebula Abell 15 is in the constellation Canis Maior It is best observed from November to February.
