IC 4954
| Reflexionsnebel | |
|---|---|
| IC 4954 | |
 | |
| IC 4954 (o.r) + IC 4955 eingebettet im Sternhaufen Roslund 4 | |
| Sternbild | Fuchs |
| Position Äquinoktium: J2000.0 | |
| Rektaszension | 20h 04m 45,0s[1] |
| Deklination | +29° 15′ 10″[1] |
| Weitere Daten | |
| Winkelausdehnung | 1/0.7[2] |
| Entfernung | 7000 Lj |
| Geschichte | |
| Entdeckung | DeLisle Stewart |
| Datum der Entdeckung | September 1901 |
| Katalogbezeichnungen | |
| IC 4954 • Teil von LBN 153 | |
| AladinLite | |
IC 4954 ist ein Reflexionsnebel im Sternbild Fuchs. Das Objekt wurde im September 1901 vom US-amerikanischen Astronomen DeLisle Stewart entdeckt.[3]
Literatur
- König, Michael & Binnewies, Stefan (2023): Bildatlas der Sternhaufen & Nebel, Stuttgart: Kosmos, S. 55
Weblinks
Einzelnachweise
Auf dieser Seite verwendete Medien
IC 4955 (noao-ic4955block).tiff
Autor/Urheber: KPNO/NOIRLab/NSF/AURA/Adam Block, Lizenz: CC BY 4.0
These two nebulae, IC 4954 and IC 4955, are part of a much larger complex of newly formed stars. This much larger cluster is called Roslund 4 and astronomers estimate that the stars found here are 4 million years old. The very sharp boundary (shock front) between some of these stars and the molecular cloud serves as a chronometer for the cluster. It is unlikely that a structure like this, caused by the outflow of these energetic young stars, would persist for timescales longer than 6 million years. It is estimated that this star forming region is 6,000-8,000 light years away.This image was taken as part of Advanced Observing Program (AOP) program at Kitt Peak Visitor Center during 2014.
Autor/Urheber: KPNO/NOIRLab/NSF/AURA/Adam Block, Lizenz: CC BY 4.0
These two nebulae, IC 4954 and IC 4955, are part of a much larger complex of newly formed stars. This much larger cluster is called Roslund 4 and astronomers estimate that the stars found here are 4 million years old. The very sharp boundary (shock front) between some of these stars and the molecular cloud serves as a chronometer for the cluster. It is unlikely that a structure like this, caused by the outflow of these energetic young stars, would persist for timescales longer than 6 million years. It is estimated that this star forming region is 6,000-8,000 light years away.This image was taken as part of Advanced Observing Program (AOP) program at Kitt Peak Visitor Center during 2014.