- Instance of
Overview
All data
30 statements · 77% with external sources · numbers in brackets are citations
- Catalog code
- M 23 catalog: Messier object
1
- NGC 6494 catalog: New General Catalogue
1
- OCl 30 catalog: Catalogue of Star Clusters and Associations
1
Sources- 1.“Revised NGC Data for NGC 6494”spider.seds.org/ngc/revngcic.cgi?NGC6494Retrieved 2017-08-14
- Melotte 184 catalog: Melotte Catalogue
- Collinder 356 catalog: Collinder catalogue
- C 1753-190 catalog: Caldwell catalogue
1
- [KPS2012] MWSC 2757 catalog: Global survey of star clusters in the Milky Way. III. 139 new open clusters at high Galactic latitudes
1
- M 23 catalog: Messier object
- Discovered
- June 20, 1764
- Distance from Earth
- 628 pc
1
- 628 pc
- Radius
- 8 ly
- Right ascension
- 269.2667 degree
1
- 269.2667 degree
- Declination
- -18.985 degree
1
- -18.985 degree
- Radial velocity
- -8.6 kilometre per second
1
- -8.6 kilometre per second
- Metallicity
- -0.04
2
Sources- 1.Stated in On the metallicity of open clusters
- 2.Stated in On the metallicity of open clusters
- -0.04
- Declination component of proper motion
- -0.94 milliarcsecond per year
- Right ascension component of proper motion
- 0.72 milliarcsecond per year
On other databases
4 identifiers linking Messier 23 across the web's reference databases