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NGC 152

Coordinates:Sky map00h 32m 52.4s, −73° 07′ 13″
From Wikipedia, the free encyclopedia
Open cluster in the constellation Tucana
NGC 152
NGC 152 as seen from theHubble Space Telescope
Observation data (J2000epoch)
Right ascension00h 32m 56.26s[1]
Declination−73° 06′ 56.6″[1]
Apparent magnitude (V)12.26[1]
Apparent dimensions (V)3.00 × 3.00[2]
Physical characteristics
Mass2.5×104[3] M
Estimated age1.40±0.20 Gyr[3]
Other designationsESO 28-24[4]
Associations
ConstellationTucana
See also:Open cluster,List of open clusters

NGC 152 is anopen cluster in the constellationTucana. It was discovered byJohn Herschel on September 20, 1835.[5] It is located within theSmall Magellanic Cloud.[1]

NGC 152 is about 1.40 billion years old. Its estimated mass is2.5×104 M, and its total luminosity is8.0×104 L, leading to a mass-to-luminosity ratio of 0.31M/L.[3] All else equal, older star clusters have a lower luminosity for the same mass; that is, their mass-to-luminosity ratios are higher.[3]

See also

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References

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  1. ^abcdRafelski, Marc; Zaritsky, Dennis (2005). "The Star Clusters of the Small Magellanic Cloud: Age Distribution".The Astronomical Journal.129 (6):2701–2713.arXiv:astro-ph/0408186.Bibcode:2005AJ....129.2701R.doi:10.1086/424938.S2CID 4600017.
  2. ^Bica, E.; Dutra, C. M. (2000). "Updating the Census of Star Clusters in the Small Magellanic Cloud".The Astronomical Journal.119 (3):1214–1224.arXiv:astro-ph/9912386.Bibcode:2000AJ....119.1214B.doi:10.1086/301277.hdl:10183/108234.S2CID 119350474.
  3. ^abcdSong, Ying-Yi; Mateo, Mario; Bailey, John I.; Walker, Matthew G.; Roederer, Ian U.; Olszewski, Edward W.; Reiter, Megan; Kremin, Anthony (2021)."Dynamical masses and mass-to-light ratios of resolved massive star clusters – II. Results for 26 star clusters in the Magellanic Clouds".Monthly Notices of the Royal Astronomical Society.504 (3):4160–4191.arXiv:2104.06882.doi:10.1093/mnras/stab1065.
  4. ^"NGC 152".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2021-02-06.
  5. ^"New General Catalog Objects: NGC 150-199". Retrieved2016-06-11.

External links

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  • Media related toNGC 152 at Wikimedia Commons
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