Open cluster in the constellation Carina
NGC 3532Observation data (J2000epoch ) Right ascension 11h 05m 33s [ 1] Declination −58° 43.8′[ 1] Distance 1,321[ 2] ly (405pc ) Physical characteristics Other designations NGC 3532,[ 1] Caldwell 91,Cr 238,Mel 103,C 1104-584,Cl* 1104-584,CL 1104-584, Lacaille II.10,[ 3] [ 4] [ 5] [ 6] [ 7] Associations Constellation Carina See also:Open cluster ,List of open clusters
NGC 3532 (Caldwell 91),[ 8] Pincushion Cluster ,[ 9] [ 10] [ 11] [ 8] Football Cluster ,[ 12] [ 13] Black Arrow Cluster ,[ 14] Wishing Well Cluster ,[ 4] [ 5] [ 6] [ 7] open cluster some 405parsecs fromEarth [ 2] constellation Carina . Its population of approximately 150stars of 7thmagnitude or fainter includes sevenred giants [ 15] white dwarfs .[ 16] [ 17] first target ever observed by theHubble Space Telescope . A line fromBeta Crucis throughDelta Crucis passes somewhat to the north of NGC 3532. The cluster lies between the constellationCrux and the larger but fainter "False Cross "asterism . The 4th-magnitudeCepheid variable star x Carinae (V382 Car ) appears near the southeast fringes, but it lies between theSun and the cluster and is not a member of the cluster.
The cluster was first catalogued byNicolas Louis de Lacaille in 1752.[ 18] John Herschel , who thought it one of the finest star clusters in the sky,[ 3] [ 19] double stars (binary stars ).[ 20]
Photos of NGC 3532 by space telescopes
^a b c "NGC 3532" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2010-05-23 .^a b Robichon, N.; et al. (2005). "Open clusters with Hipparcos. I. Mean astrometric parameters".Astronomy and Astrophysics .345 :471– 484.arXiv :astro-ph/9903131 Bibcode :1999A&A...345..471R . ^a b Deep Sky Observer's Companion – the online database,DOCdb Lacaille II.10 ^a b Nemiroff, R.; Bonnell, J., eds. (26 February 2010)."Chasing Carina" .Astronomy Picture of the Day NASA . Retrieved17 April 2016 . ^a b Hook, Richard (26 November 2014)."A Colourful Gathering of Middle-aged Stars" .European Southern Observatory .ESO . Retrieved17 April 2016 . ^a b Kramer, Miriam (26 November 2014)."Wishing Well Star Cluster Sparkles in Colorful New Views" .Space.com . Retrieved17 April 2016 . ^a b Frommert, Hartmut; Kronberg, Christine (23 June 2006)."NGC 3532" .SEDS Messier Database . SEDS. Retrieved17 April 2016 . ^a b Martin Mobberley (Oct 2009).The Caldwell Objects and How to Observe Them ISBN 978-1-4419-0326-6 ^ Stephen James O'Meara,The Caldwell Objects , Cambridge University Press,ISBN 0-521-82796-5 ^ Mike Inglis (July 2013).Observer's Guide to Star Clusters Springer . p. 55.Bibcode :2013ogsc.book.....I .ISBN 978-1-4614-7567-5 ^ Michael E. Bakich (July 2010).1,001 Celestial Wonders to See Before You Die Bibcode :2010ocws.book.....B .ISBN 978-1-4419-1777-5 ^ Amateur Astronomer Association of New York,Nebula of the Month – Carina's Football ^ IceInSpace - Australian Amateur Astronomy,Challenge Objects – June 2005 , 2005 ^ Chadwick, S; Cooper, I (11 December 2012).Imaging the Southern Sky . New York: Springer. p. 94.ISBN 978-1461447498 ^ Claria, J.J., Lapasset, E., (1988) "A UBV and DDO astrophysical study of the open cluster NGC3532",Monthly Notices of the Royal Astronomical Society , 235, 1129–1139 ^ Reimers, D., Koester, D., (1989) "Spectroscopic identification of white dwarfs in galactic clusters. V – NGC 3532", Astronomy & Astrophysics, 218, 118–122 ^ Dobbie, P., Day-Jones, A., Williams, K., Casewell, S., Burleigh, M., Lodieu, N., Parker, Q., Baxter, R. (2012) "Further investigation of white dwarfs in the open clusters NGC2287 and NGC3532", Monthly Notices of the Royal Astronomical Society, 423, 2815–2828 ^ Jones, K. G. (March 1969). "The search for the nebulae – VI".Journal of the British Astronomical Association .79 :213– 222.Bibcode :1969JBAA...79..213J . ^ Herschel, J. (1847).Results of Astronomical Observations Made During the Years 1834, 5, 6, 7, 8, at the Cape of Good Hope ^ ScienceDaily,"A colorful gathering of middle-aged stars" , European Southern Observatory, 26 November 2014 ^a b First Image Taken by Hubble's Wide Field Planetary Camera ,Hubblesite.org ^ "Great Exploration Revisited: New Horizons at Pluto and Charon" .Wikimedia Commons has media related to
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