NGC 6231
Summary
NGC 6231 is a very rich, very dense object of very high C3 quality. It is located at a relatively close distance from the Sun, near the mid-plane. It is very well-studied in the literature.
This object shares a very small percentage of members with 2 later reported entries.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dambis (1999) | 253.535 | -41.827 | – | – | – | – |
| Dias et al. (2002) | 253.542 | -41.825 | – | -0.89 | -1.79 | -27.54 |
| Chen et al. (2003) | 253.555 | -41.787 | – | -0.34 | -2.32 | -25.0 |
| Kharchenko et al. (2003) | 253.56 | -41.83 | – | -1.45 | -0.96 | – |
| Kharchenko et al. (2005) | 253.56 | -41.83 | – | -0.39 | -1.99 | -27.28 |
| Kharchenko et al. (2007) | 253.54 | -41.83 | – | 0.22 | – | -27.28 |
| Piskunov et al. (2008) | 253.542 | -41.831 | – | – | – | – |
| Loktin & Popova (2017) | 253.545 | -41.825 | – | -0.707 | -0.283 | -28.5 |
| Cantat-Gaudin et al. (2018) | 253.545 | -41.812 | 0.589 | -0.529 | -2.177 | – |
| Soubiran et al. (2018) | 253.545 | -41.812 | – | – | – | -39.88 |
| Dias et al. (2019) | 253.542 | -41.825 | 0.591 | -0.569 | -2.164 | -28.47 |
| Cantat-Gaudin et al. (2020) | 253.545 | -41.812 | 0.589 | -0.529 | -2.177 | – |
| Dias et al. (2021) | 253.535 | -41.801 | 0.598 | -0.533 | -2.162 | -28.186 |
| Rain et al. (2021) | 253.545 | -41.812 | 0.589 | -0.529 | -2.177 | – |
| Jaehnig et al. (2021) | 253.544 | -41.803 | 0.621 | -0.578 | -2.096 | – |
| Hunt & Reffert (2023) | 253.571 | -41.836 | 0.608 | -0.576 | -2.184 | -30.795 |
| Cavallo et al. (2024) | 253.56 | -41.828 | 0.607 | – | – | – |
| Celli et al. (2024) | 253.545 | -41.812 | – | – | – | – |
| Hunt & Reffert (2024) | 253.571 | -41.836 | 0.608 | -0.576 | -2.184 | -30.795 |
| Almeida et al. (2025) | 253.535 | -41.801 | – | – | – | – |
| UCC | 253.556 | -41.828 | 0.605 | -0.576 | -2.179 | -27.671 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dambis (1999) | E_B-V_=0.468, DM0=10.74, log_age_=6.5 |
| Dias et al. (2002) | E(B-V)=0.439, Dist=1243.0, Age=6.843 |
| Chen et al. (2003) | HDis=1243, Age=0.0 |
| Kharchenko et al. (2003) | E(B-V)=0.44, Dist=1243 |
| Kharchenko et al. (2005) | E(B-V)=0.44, Dist=1250, logt=6.81 |
| Piskunov et al. (2008) | E(B-V)=0.44, Dist=1250, logt=6.81, logMA=2.823 |
| Loktin & Popova (2017) | E(B-V)=0.435, Dist=1251, logt=6.845 |
| Cantat-Gaudin et al. (2018) | dmode=1617.4 |
| Soubiran et al. (2018) | dmode=1617.4 |
| Dias et al. (2019) | E(B-V)=0.5, Dist=989, logAge=7.095, Z=0.003 |
| Cantat-Gaudin et al. (2020) | AVNN=1.07, DistPc=1475.0, AgeNN=7.14 |
| Dias et al. (2021) | Av=1.533, Dist=1429, logage=6.944, [Fe/H]=0.11 |
| Rain et al. (2021) | E(B-V)=0.43, Dist=1617.4, log(Age)=6.84, NBSS=0 |
| Jaehnig et al. (2021) | dmode=1.644 |
| Hunt & Reffert (2023) | AV50=1.535, diffAV50=1.691, MOD50=10.959, logAge50=6.64 |
| Cavallo et al. (2024) | AV50=1.48, dMod50=10.58, logAge50=6.96, [Fe/H]50=0.05 |
| Celli et al. (2024) | Age=13.8, Mc=3198.8 |
| Hunt & Reffert (2024) | MassJ=4209.69, MassTot=4209.69 |
| Almeida et al. (2025) | AV=1.533, Dist=1429, logAge=6.944, MassRk=3079.9 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| UBC 672 | 1.3 | 253.28 | -41.61 | 0.57 | -0.64 | -2.02 | -26.66 | 0.1 |
| CWWDL 14193 | 0.4 | 253.36 | -41.47 | 0.63 | -0.66 | -1.94 | -15.26 | 0.16 |