NGC 2264
| H-II region and open star cluster and diffuse nebula |
|
|---|---|
| NGC 2264 | |
|
|
| The Cone Nebula, part of NGC 2264 in visible light | |
| Constellation | unicorn |
|
Position equinox : J2000.0 |
|
| Right ascension | 06h 40m 58.2s |
| declination | + 09 ° 53 ′ 44 ″ |
| Further data | |
| Brightness (visual) |
4.1 mag |
| Angular expansion |
40 |
| distance |
2500 ly |
| history | |
| discovery |
Wilhelm Herschel |
| Date of discovery |
January 18, 1784 |
| Catalog names | |
| NGC 2264 • OCl 495 • LBN 911 • H VIII 5 • HV 27 • h 401 • GC 1440 | |
| Aladin previewer | |
NGC 2264 describes an area that consists of part of an H-II area (with a dark cloud in front of it, the Cone Nebula ), a star cluster (the Christmas tree star cluster ) and the diffuse nebula in between. It is located about 2500 light years away in the constellation Unicorn and has dimensions of 40.0 '× 40.0' and an apparent magnitude of 4.1 mag.
The individual components are often incorrectly labeled. So z. B. the H-II region alone as NGC 2264. The New General Catalog, however, designates the entirety of the H-II region, open star cluster and diffuse nebula with the number 2264.
The object was discovered by Wilhelm Herschel on January 18, 1784 .
See also
Web links
- ESO: A Sparkling Spray of Stars
- NGC 2264 @ SEDS NGC objects pages
- http://www.space.com/imageoftheday/image_of_day_040303.html
- Spektrum.de : Amateur recordings [1] [2] [3] [4] [5]