Abell 78
Abell 78 is a planetary nebula located in the constellation of Cygnus. It has a fainter halo consisting mostly hydrogen, and an inner elliptical ring that is mostly made of helium.
| Emission nebula | |
|---|---|
| Planetary nebula | |
 As Seen From Mount Lemmon Sky Center | |
| Observation data: J2000.0 epoch | |
| Right ascension | 21h 35m 29.38s |
| Declination | +31° 41′ 45.3″ |
| Constellation | Cygnus |
| Physical characteristics | |
| Radius | 1.4 ly ly |
| Designations | PK 081-14.1, PN G 081.2-14.9, Abel 64, ARO 174, 2MASS J21352938+3141453, CSI+31-21334, UBV 18570, UBV M 44681 |
External links
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