NGC 2818
(FoF 623)
0.98
UTI
0.88
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
Radius (P>50% members)
5.5 [arcmin]
- CN 0.88 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 1.0 Very well-studied
- Cdup 1.0 Unique
Overview
NGC 2818 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Relatively close
Low extinction
Massive
Near-solar metallicity
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | β | 139.044 | -36.624 | 0.302 | -4.421 | 4.543 | 20.624 |
| Li et al. | 2025 | 139.044 | -36.624 | 0.275 | -4.439 | 4.528 | β |
| Hu & Soubiran | 2025 | 139.048 | -36.623 | β | β | β | β |
| Wei et al. | 2025 | 139.044 | -36.615 | 0.301 | -4.409 | 4.539 | β |
| Almeida et al. | 2025 | 139.045 | -36.621 | β | β | β | β |
| Hunt & Reffert | 2024 | 139.042 | -36.621 | 0.3 | -4.421 | 4.546 | 13.359 |
| Cavallo et al. | 2024 | 139.048 | -36.623 | 0.3 | β | β | β |
| Hunt & Reffert | 2023 | 139.042 | -36.621 | 0.3 | -4.421 | 4.546 | 13.359 |
| Almeida et al. | 2023 | 139.041 | -36.617 | β | β | β | β |
| Cordoni et al. | 2023 | 139.045 | -36.621 | 0.277 | -4.43 | 4.53 | β |
| Jaehnig et al. | 2021 | 139.042 | -36.617 | 0.313 | -4.424 | 4.532 | β |
| Rain et al. | 2021 | 139.044 | -36.624 | 0.275 | -4.439 | 4.528 | β |
| Dias et al. | 2021 | 139.045 | -36.621 | 0.277 | -4.43 | 4.53 | 21.849 |
| Cantat-Gaudin et al. | 2020 | 139.044 | -36.624 | 0.275 | -4.439 | 4.528 | β |
| SΓ‘nchez et al. | 2020 | 139.004 | -36.625 | β | -4.5 | 4.627 | β |
| Cantat-Gaudin & Anders | 2020 | 139.044 | -36.624 | 0.275 | -4.439 | 4.528 | β |
| Liu & Pang | 2019 | 139.055 | -36.617 | 0.285 | -4.429 | 4.485 | β |
| Bossini et al. | 2019 | 139.044 | -36.624 | β | β | β | β |
| Soubiran et al. | 2018 | 139.044 | -36.624 | β | β | β | 21.48 |
| Cantat-Gaudin et al. | 2018 | 139.044 | -36.624 | 0.275 | -4.439 | 4.528 | β |
| Loktin & Popova | 2017 | 139.005 | -36.624 | β | -4.0 | 5.27 | 20.7 |
| Dias et al. | 2014 | 139.004 | -36.625 | β | -4.0 | 5.27 | β |
| Gozha et al. | 2012 | 139.004 | -36.625 | β | β | β | β |
| Kharchenko et al. | 2007 | 139.0 | -36.62 | β | 0.08 | β | β |
| van den Bergh | 2006 | 139.007 | -36.627 | β | β | β | β |
| Chen et al. | 2003 | 139.001 | -36.628 | β | β | β | β |
| Dias et al. | 2002 | 139.004 | -36.625 | β | -4.0 | 5.27 | 20.69 |
π‘ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Li et al. | 2025 | 2.84 | 0.63 | β | 1347 | -0.343 | β | β | β |
| Hu & Soubiran | 2025 | β | β | β | β | -0.200* | β | β | β |
| Wei et al. | 2025 | 4.06 | 0.70 | β | 1070 | 0.000 | 2468 | 0.51 | β |
| Almeida et al. | 2025 | 2.76 | 0.52 | β | 1167 | β | 1344 | β | β |
| Hunt & Reffert | 2024 | β | β | β | β | β | 2187* | β | β |
| Cavallo et al. | 2024 | 2.77 | 0.52 | β | 1175 | -0.010 | β | β | β |
| Hunt & Reffert | 2023 | 3.05 | 0.19 | 0.56 | 1079 | β | β | β | β |
| Almeida et al. | 2023 | 2.91 | 0.54 | β | 1256 | -0.097 | 1100* | 0.58 | β |
| Cordoni et al. | 2023 | 2.76 | 0.52 | β | 1167 | -0.099 | 1272 | 0.39 | 0.05 |
| Jaehnig et al. | 2021 | 3.23* | β | β | β | β | β | β | β |
| Rain et al. | 2021 | 3.29 | 0.37 | β | 417 | β | β | β | 5 |
| Dias et al. | 2021 | 2.76 | 0.52 | β | 1167 | -0.099 | β | β | β |
| Cantat-Gaudin et al. | 2020 | 3.09 | 0.43 | β | 832 | β | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 3.29 | β | β | β | β | β | β | β |
| Liu & Pang | 2019 | β | β | β | 1410 | -0.500 | β | β | β |
| Bossini et al. | 2019 | 3.15 | 0.60 | β | 916 | -0.170 | β | β | β |
| Soubiran et al. | 2018 | 3.29 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 3.29 | β | β | β | β | β | β | β |
| Loktin & Popova | 2017 | 1.85 | 0.38 | β | 423 | β | β | β | β |
| Gozha et al. | 2012 | 1.85 | β | β | 423 | -0.170 | β | β | β |
| van den Bergh | 2006 | 1.85 | 0.37 | β | 427 | β | β | β | β |
| Chen et al. | 2003 | 1.85 | 0.38 | β | 420 | -0.170* | β | β | β |
| Dias et al. | 2002 | 1.85 | 0.38 | β | 423 | -0.170 | β | β | β |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.
Cavallo et al. (2024)
Gold sample.