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NGC 6366
NGC 6366 as seen through the Hubble Space Telescope
Observation data (J2000 epoch)
Class	XI
Constellation	Ophiuchus
Right ascension	17 27 44.3
Declination	−05° 04′ 36″
Apparent magnitude (V)	9.5
Apparent dimensions (V)	13.0'
Physical characteristics
Absolute magnitude	-5.47
Metallicity	${\displaystyle {\begin{smallmatrix}\left\end{smallmatrix}}}$ = = −0.60±0.03 dex
Other designations	GCL 65
See also: Globular cluster, List of globular clusters

NGC 6366 is a globular cluster located in the constellation Ophiuchus. It is designated as XI in the Shapley–Sawyer Concentration Class and was discovered by the German astronomer Friedrich August Theodor Winnecke on 12 April 1860. It is at a distance of 11,700 light years away from Earth.

NGC 6366 is similar in composition to M 71 or NGC 6342. It is metal-rich for a globular cluster, and all of its stars appears to have formed in the same epoch.

See also

• List of NGC objects (6001–7000)
• List of NGC objects

References

1. ^ Puls, Arthur A.; Alves-Brito, Alan; Campos, Fabíola; Dias, Bruno; Barbuy, Beatriz (2018), "Chemical analysis of eight giant stars of the globular cluster NGC 6366", Monthly Notices of the Royal Astronomical Society, 476: 690–704, arXiv:1801.09968, doi:10.1093/mnras/sty267
2. "NGC 6366 (= GCL 65)". cseligman. Retrieved 19 October 2015.
3. "Object No. 1 - NGC 6366". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 19 October 2015.
4. "Revised NGC Data for NGC 6366". Seds. Retrieved 19 October 2015.
5. "NGC 6366". Seds. Retrieved 19 October 2015.
6. "The globular cluster NGC 6366". In-the-sky. Retrieved 19 October 2015.
7. Johnson, Christian I.; Caldwell, Nelson; Rich, R. Michael; Pilachowski, Catherine A.; Hsyu, Tiffany (2016), "The Chemical Composition of Red Giant Branch Stars in the Galactic Globular Clusters NGC 6342 and NGC 6366", The Astronomical Journal, 152 (1): 21, arXiv:1606.08491, Bibcode:2016AJ....152...21J, doi:10.3847/0004-6256/152/1/21, S2CID 19812549

External links

• Media related to NGC 6366 at Wikimedia Commons

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