Astronomy:NGC 288

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Short description: Globular cluster in the constellation Sculptor
NGC 288
NGC 288 Hubble WikiSky.jpg
NGC 288 by Hubble Space Telescope's Wide Field Channel of the Advanced Camera for Surveys
Observation data (J2000 epoch)
ClassX[1]
ConstellationSculptor
Right ascension 00h 52m 45.24s[2]
Declination–26° 34′ 57.4″[2]
Distance29.22 ± 0.16 kly (8.96 ± 0.05 kpc)[3]
Apparent magnitude (V)9.37[4]
Apparent dimensions (V)13′.8[1]
Physical characteristics
Mass4.8×104[5] M☉
Metallicity[math]\displaystyle{ \begin{smallmatrix}\left[\ce{Fe}/\ce{H}\right]\end{smallmatrix} }[/math] = –1.14[6] dex
Estimated age13.5 ± 1.1 Gyr[3]
Other designationsMelotte 3[4]
See also: Globular cluster, List of globular clusters

NGC 288 is a globular cluster in the constellation Sculptor. Its visual appearance was described by John Dreyer in 1888.[7] It is located about 1.8° southeast of the galaxy NGC 253, 37′ north-northeast of the South Galactic Pole, 15′ south-southeast of a 9th magnitude star, and encompassed by a half-circular chain of stars that opens on its southwest side.[1] It can be observed through binoculars.[1] It is not very concentrated and has a well resolved, large 3′ dense core that is surrounded by a much more diffuse and irregular 9′ diameter ring.[1] Peripheral members extend farther outward towards the south and especially southwest.[1]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Kepple, George Robert; Sanner, Glen W. (1998). The Night Sky Observer's Guide. 2. Willmann-Bell, Inc.. pp. 365, 372. ISBN 978-0-943396-60-6. 
  2. ↑ 2.0 2.1 Goldsbury, Ryan et al. (December 2010), "The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters", The Astronomical Journal 140 (6): 1830–1837, doi:10.1088/0004-6256/140/6/1830, Bibcode: 2010AJ....140.1830G. 
  3. ↑ 3.0 3.1 Gontcharov, George A.; Khovritchev, Maxim Yu; Mosenkov, Aleksandr V.; Il'In, Vladimir B.; Marchuk, Alexander A.; Savchenko, Sergey S.; Smirnov, Anton A.; Usachev, Pavel A. et al. (2021). "Isochrone fitting of Galactic globular clusters – III. NGC 288, NGC 362, and NGC 6218 (M12)". Monthly Notices of the Royal Astronomical Society 508 (2): 2688–2705. doi:10.1093/mnras/stab2756. 
  4. ↑ 4.0 4.1 "NGC 288". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+288. 
  5. ↑ Marks, Michael; Kroupa, Pavel (August 2010), "Initial conditions for globular clusters and assembly of the old globular cluster population of the Milky Way", Monthly Notices of the Royal Astronomical Society 406 (3): 2000–2012, doi:10.1111/j.1365-2966.2010.16813.x, Bibcode: 2010MNRAS.406.2000M.  Mass is from MPD on Table 1.
  6. ↑ Forbes, Duncan A.; Bridges, Terry (May 2010), "Accreted versus in situ Milky Way globular clusters", Monthly Notices of the Royal Astronomical Society 404 (3): 1203–1214, doi:10.1111/j.1365-2966.2010.16373.x, Bibcode: 2010MNRAS.404.1203F. 
  7. ↑ Dreyer, J. L. E. (1888). "A New General Catalogue of Nebulae and Clusters of Stars, being the Catalogue of the late Sir John F. W. Herschel, Bart., revised, corrected, and enlarged.". Memoirs of the Royal Astronomical Society 49: 1–237. Bibcode: 1888MmRAS..49....1D. 

External links

Coordinates: Sky map 00h 52m 45.3s, −26° 34′ 43″




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