VDBH 221
(vdBergh-Hagen 221; BH 221; ESO 454 06; MWSC 2563)
Summary
VDBH 221 is a rich, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, above the mid-plane. It is very well-studied in the literature.
This object shares a small percentage of members with a later reported entry.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 259.663 | -32.317 | – | -2.22 | -3.37 | 8.86 |
| Piskunov et al. (2007) | 259.653 | -32.344 | – | – | – | – |
| Piskunov et al. (2008) | 259.653 | -32.344 | – | – | – | – |
| Kharchenko et al. (2012) | 259.665 | -32.33 | – | 2.35 | -4.0 | – |
| Cantat-Gaudin et al. (2018) | 259.641 | -32.334 | 0.884 | 2.0 | -1.568 | – |
| Bica et al. (2019) | 259.657 | -32.322 | – | – | – | – |
| Soubiran et al. (2018) | 259.641 | -32.334 | – | – | – | -4.79 |
| Cantat-Gaudin et al. (2020) | 259.641 | -32.334 | 0.884 | 2.0 | -1.568 | – |
| Dias et al. (2021) | 259.649 | -32.312 | 0.887 | 2.007 | -1.586 | – |
| He et al. (2022) | 259.6 | -32.374 | 0.912 | 1.981 | -1.61 | – |
| Hunt & Reffert (2023) | 259.594 | -32.39 | 0.894 | 1.97 | -1.572 | 0.267 |
| Cavallo et al. (2024) | 259.627 | -32.36 | 0.905 | – | – | – |
| Celli et al. (2024) | 259.641 | -32.334 | – | – | – | – |
| Hunt & Reffert (2024) | 259.594 | -32.39 | 0.894 | 1.97 | -1.572 | 0.267 |
| Almeida et al. (2025) | 259.649 | -32.312 | – | – | – | – |
| UCC | 259.625 | -32.369 | 0.895 | 1.958 | -1.571 | 5.712 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.2, Dist=750.0, Age=8.01 |
| Piskunov et al. (2007) | E(B-V)=0.2, Dist=750, logt=8.01, logM=1.507 |
| Piskunov et al. (2008) | E(B-V)=0.2, Dist=750, logt=8.01, logM=2.13, logMA=2.21 |
| Kharchenko et al. (2012) | e_bv=0.2, distance=807, log_age=7.8 |
| Cantat-Gaudin et al. (2018) | dmode=1095.5 |
| Soubiran et al. (2018) | dmode=1095.5 |
| Cantat-Gaudin et al. (2020) | AVNN=1.09, DistPc=1213.0, AgeNN=7.03 |
| Dias et al. (2021) | Av=1.041, Dist=1050, logage=7.071, [Fe/H]=0.002 |
| He et al. (2022) | A0=1.5, logAge=6.75 |
| Hunt & Reffert (2023) | AV50=1.113, diffAV50=2.221, MOD50=10.13, logAge50=6.676 |
| Cavallo et al. (2024) | AV50=1.33, dMod50=9.85, logAge50=6.83, [Fe/H]50=-0.2 |
| Celli et al. (2024) | Age=10.7, Mc=515.5 |
| Hunt & Reffert (2024) | MassJ=857.415, MassTot=857.415 |
| Almeida et al. (2025) | AV=1.041, Dist=1050, logAge=7.071, MassRk=549.4 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| OC 0691 | 10.9 | 259.63 | -32.38 | 0.96 | 1.86 | -1.62 | -2.14 | 0.0 |