NGC 6357
0.60
UTI
0.77
CN
1.0
Cdens
1.0
CC3
0.48
Clit
0.81
Cdup
Nm (P>50%)
146
Core radius and density
1.6 [pc], 8.2 [pc-2]
- CN 0.77 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.48 Poorly studied
- Cdup 0.81 Very likely unique
π₯ Members
π Colab
π¬ Bayestar19
MOCA
π CDS
π Simbad
π CDS (Ξ±, Ξ΄)
π Simbad (Ξ±, Ξ΄)
MOCA
π CDS
π Simbad
π CDS (Ξ±, Ξ΄)
π Simbad (Ξ±, Ξ΄)
Overview
NGC 6357 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.
Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999β | 261.196 | -34.211 | 0.552 | -0.855 | -2.099 | 6.352 |
| Hunt & Reffert | 2024 | 261.183 | -34.203 | 0.556 | -0.939 | -2.394 | 38.994 |
| Celli et al. | 2024 | 261.185 | -34.203 | β | β | β | β |
| Cavallo et al. | 2024 | 261.345 | -34.266 | 0.556 | β | β | β |
| Hunt & Reffert | 2023 | 261.183 | -34.203 | 0.556 | -0.939 | -2.394 | 38.994 |
| Cantat-Gaudin et al. | 2020 | 261.185 | -34.203 | 0.567 | -0.854 | -2.083 | β |
| SΓ‘nchez et al. | 2020 | 261.179 | -34.202 | β | -0.834 | -2.115 | β |
| Cantat-Gaudin & Anders | 2020 | 261.185 | -34.203 | 0.567 | -0.854 | -2.083 | β |
| Cantat-Gaudin et al. | 2018 | 261.185 | -34.203 | 0.567 | -0.854 | -2.083 | β |
| Dias et al. | 2018 | β | β | β | -2.0 | -2.51 | β |
| Sampedro et al. | 2017 | 261.179 | -34.202 | β | -3.58 | -1.39 | β |
| Joshi et al. | 2016 | 261.169 | -34.213 | β | β | β | β |
| Tadross | 2014 | 261.179 | -34.202 | β | β | β | β |
| Dias et al. | 2014 | 261.179 | -34.202 | β | -3.29 | -0.81 | -8.0 |
| Bukowiecki et al. | 2011 | 261.167 | -34.212 | β | β | β | β |
| Dias et al. | 2002 | 261.179 | -34.202 | β | -3.29 | -0.81 | -8.0 |
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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999β | 1.68 | 5.155 | 3.16 | 13 | 0.280 | 1388 | β | β |
| Hunt & Reffert | 2024 | 1.75 | 5.23 | 3.16 | 17 | β | 2321(1) | β | β |
| Celli et al. | 2024 | β | β | β | 1 | β | 1388 | β | β |
| Cavallo et al. | 2024 | 1.81 | 4.95 | β | 13 | 0.280 | β | β | β |
| Hunt & Reffert | 2023 | 1.75 | 5.23 | 3.16 | 17 | β | β | β | β |
| Kounkel et al. | 2020 | 1.52 | 5.88 | β | 2 | β | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 1.68 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 1.68 | β | β | β | β | β | β | β |
| Joshi et al. | 2016 | 1.77 | 6.93 | β | 1 | β | β | β | β |
| Tadross | 2014 | 1.21 | 4.26 | β | 400 | β | β | β | β |
| Bukowiecki et al. | 2012 | β | β | β | β | β | 410 | β | β |
| Bukowiecki et al. | 2011 | 0.25(1) | 5.08 | β | 8 | β | β | β | β |
| Dias et al. | 2002 | 1.21 | 4.26 | β | 398 | β | β | β | β |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Wood sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.05 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.05 (50th percentile).