NGC 559
| NGC 559 | |
|---|---|
 PanSTARRS image of NGC 559 | |
| Observation data (J2000 epoch) | |
| Right ascension | 01h 29m 31.20s[1] |
| Declination | +63° 18′ 07.2″[1] |
| Distance | 7200 ly (2200 pc[1]) |
| Apparent magnitude (V) | +9.5 |
| Apparent dimensions (V) | 7.0′[2] |
| Physical characteristics | |
| Other designations | Caldwell 8, Cr 13 |
| Associations | |
| Constellation | Cassiopeia |
NGC 559 (also known as Caldwell 8) is an open cluster and Caldwell object in the constellation Cassiopeia. It shines at magnitude +9.5. Its celestial coordinates are RA 01h 29.5m , dec +63° 18′. It is located near the open cluster NGC 637, and the bright magnitude +2.2 irregular variable star Gamma Cassiopeiae. The cluster is 7 arcmins across.[2]
It was discovered by William Herschel in 1787. [3]
The object is also called Ghost's Goblet. This name was coined by astronomer Stephen J. O'Meara, as the center of the star cluster, with a little imagination, is reminiscent of a still photograph of a jeweled goblet that is about to vanish in a ghostly manner. O'Meara attributes the impression of fading to the low brightness (about +12) of many stars in the center as well as to the great age of the star cluster, which is about 1.8 billion years old.[4]
References
[edit | edit source]- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ https://www.deepskycorner.ch/obj/ngc559.en.php
- ^ O’Meara, Stephen James (2016): The Caldwell Objects. 2nd edition, Cambridge, Cambridge University Press, ISBN 978-1-107-08397-4, p. 49–51.
External links
[edit | edit source]- Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- NGC 559 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
