NGC 559

NGC 559
NGC 559
	PanSTARRS image of NGC 559
Observation data (J2000 epoch)
Right ascension	01h 29m 31.20s
Declination	+63° 18′ 07.2″
Distance	7200 ly (2200 pc)
Apparent magnitude (V)	+9.5
Apparent dimensions (V)	7.0′
Physical characteristics
Other designations	Caldwell 8, Cr 13
Associations
Constellation	Cassiopeia
	See also: Open cluster, List of open clusters

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 01^h 29.5^m , 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]

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.^[3]

References

^ ^a ^b ^c Kharchenko, N. V.; et al. (2013), "Global survey of star clusters in the Milky Way. II. The catalogue of basic parameters", Astronomy and Astrophysics, 558: 8, arXiv:1308.5822, Bibcode:2013A&A...558A..53K, doi:10.1051/0004-6361/201322302, S2CID 118548517, A53.
^ ^a ^b Seligman, Courtney. "Celestial Atlas: NGC Objects: NGC 550 - 599". cseligman.com. Archived from the original on 10 September 2015. Retrieved 26 July 2015.
^ 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

Media related to NGC 559 at Wikimedia Commons
Frommert, Harmut. "Revised NGC Data for NGC 559". Spider. Students for the Exploration and Development of Space.
"NGC 559". SIMBAD. Centre de données astronomiques de Strasbourg.
"NED results for object NGC 0559". NASA/IPAC Extragalactic Database. National Aeronautics and Space Administration / Infrared Processing and Analysis Center. Retrieved 17 February 2018.
NGC 559 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

[Kharchenko2013-1] Kharchenko, N. V.; et al. (2013), "Global survey of star clusters in the Milky Way. II. The catalogue of basic parameters", Astronomy and Astrophysics, 558: 8, arXiv:1308.5822, Bibcode:2013A&A...558A..53K, doi:10.1051/0004-6361/201322302, S2CID 118548517, A53.

[Seligman-2] Seligman, Courtney. "Celestial Atlas: NGC Objects: NGC 550 - 599". cseligman.com. Archived from the original on 10 September 2015. Retrieved 26 July 2015.

[3] O’Meara, Stephen James (2016): The Caldwell Objects. 2nd edition, Cambridge, Cambridge University Press, ISBN 978-1-107-08397-4, p. 49–51.

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v t e Caldwell catalogue
List	C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C97 C98 C99 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109
See also	Messier Catalogue Catalogue of Nebulae and Clusters of Stars New General Catalogue Index Catalogue Revised New General Catalogue Herschel 400 Catalogue
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