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Djorgovski 1

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Djorgovski 1
Observation data (J2000 epoch)
ConstellationScorpius
Right ascension17h 47m 28.3s[1]
Declination−33° 03:56′[1]
Distance44.7 kly[1]
Apparent magnitude (V)13.6[1]
Physical characteristics
Metallicity = −1.51[2] dex
Other designationsDjorg 1
See also: Globular cluster, List of globular clusters

Djorgovski 1 is a globular cluster discovered in 1986 by George Djorgovski who was looking for possible obscured globular clusters using the IRAS Point Source Catalog.[3] Studies show that its stars are "metal-poor" – they contain hydrogen and helium but little else. Djorgovski 1 is actually one of the most metal-poor clusters in the inner galaxy.[4]

References

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  1. ^ a b c d "Djorg 1". Spider.SEDS.org. Archived from the original on 4 March 2016. Retrieved 19 June 2015.
  2. ^ Valenti, Elena; Ferraro, Francesco R; Origlia, Livia. "Near-IR Properties of Globular Clusters in the Galactic Bulge". Archived from the original on 23 September 2015. Retrieved 19 June 2015.
  3. ^ Djorgovski, S (1987). "Discovery of three obscured globular clusters" (PDF). The Astrophysical Journal. 317: L13. Bibcode:1987ApJ...317L..13D. doi:10.1086/184903.
  4. ^ "Engulfed by stars near the Milky Way's heart". Hubble Space telescope. Archived from the original on 19 June 2015. Retrieved 19 June 2015.