Cone Nebula
| Emission nebula | |
|---|---|
| H II region | |
| dark nebula | |
Taken on April 2, 2002 by the Hubble Space Telescope | |
| Observation data: J2000.0 epoch | |
| Right ascension | 06h 41m 15s |
| Declination | +09° 21′ |
| Distance | 2,700 ly |
| Apparent magnitude (V) | — |
| Apparent dimensions (V) | 3 arcmins |
| Constellation | Monoceros |
| Physical characteristics | |
| Radius | 4 ly |
| Absolute magnitude (V) | — |
| Notable features | Christmas Tree Cluster |
| Designations | NGC 2264 (portion) |
The Cone Nebula is an H II region in the constellation of Monoceros. It was discovered by William Herschel on December 26, 1785, at which time he designated it H V.27. The nebula is located about 830 parsecs or 2,700 light-years from Earth. The Cone Nebula forms part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone.