NGC 256 (also known as ESO 29-SC11) is open cluster in the Tucana constellation. It was discovered by John Frederick William Herschel on April 11, 1834.[3]

NGC 256
NGC 256 with DECam
Observation data (J2000 epoch)
Right ascension00h 45m 54.11s[1]
Declination−73° 30′ 23.9″[1]
Apparent magnitude (V)12.50[1]
Apparent dimensions (V)0.9 × 0.9[1]
Physical characteristics
Mass1.3×103[2] M
Estimated age83 Myr[2]
Other designationsKron 23, ESO 29-SC11[1]
Associations
ConstellationTucana
See also: Open cluster, List of open clusters

References

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  1. ^ a b c d e "NGC 256". SIMBAD. Centre de données astronomiques de Strasbourg.
  2. ^ a b Gatto, M.; Ripepi, V.; Bellazzini, M.; Tosi, M.; Cignoni, M.; Tortora, C.; Leccia, S.; Clementini, G.; Grebel, E. K.; Longo, G.; Marconi, M.; Musella, I. (2021). "STEP survey – II. Structural analysis of 170 star clusters in the SMC". Monthly Notices of the Royal Astronomical Society. 507 (3): 3312–3330. arXiv:2108.02791. doi:10.1093/mnras/stab2297.
  3. ^ "New General Catalog Objects: NGC 250 - 299". cseligman.com. Retrieved 12 February 2017.
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  •   Media related to NGC 256 at Wikimedia Commons