Bochum 4
(MWSC 1254)
Summary
Bochum 4 is a rich, very dense object of 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.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dambis (1999) | 112.904 | -17.193 | – | – | – | – |
| Dias et al. (2002) | 112.904 | -17.193 | – | -2.4 | 0.11 | 16.0 |
| Kharchenko et al. (2003) | 112.74 | -16.92 | – | -2.04 | -0.44 | – |
| Kharchenko et al. (2005) | 112.9 | -17.19 | – | -1.69 | 0.49 | 16.0 |
| Kharchenko et al. (2007) | 112.9 | -17.19 | – | 0.13 | – | 16.0 |
| Piskunov et al. (2008) | 112.899 | -17.192 | – | – | – | – |
| Kharchenko et al. (2013) | 112.905 | -17.19 | – | -0.43 | 0.39 | 16.0 |
| Kharchenko et al. (2016) | 112.899 | -17.188 | – | – | – | – |
| Loktin & Popova (2017) | 112.905 | -17.192 | – | -2.462 | 0.594 | 16.0 |
| Cantat-Gaudin et al. (2018) | 112.877 | -17.229 | 0.761 | -3.014 | 1.848 | – |
| Cantat-Gaudin et al. (2020) | 112.877 | -17.229 | 0.761 | -3.014 | 1.848 | – |
| Dias et al. (2021) | 112.882 | -17.216 | 0.764 | -3.019 | 1.85 | – |
| Tarricq et al. (2022) | 112.886 | -17.24 | 0.766 | -3.016 | 1.889 | – |
| Just et al. (2023) | 112.899 | -17.188 | – | – | – | – |
| Hunt & Reffert (2023) | 112.897 | -17.199 | 0.765 | -3.002 | 1.899 | 34.858 |
| Cavallo et al. (2024) | 112.904 | -17.163 | 0.763 | – | – | – |
| Hunt & Reffert (2024) | 112.897 | -17.199 | 0.765 | -3.002 | 1.899 | 34.858 |
| Almeida et al. (2025) | 112.882 | -17.216 | – | – | – | – |
| UCC | 112.914 | -17.202 | 0.763 | -3.024 | 1.891 | 34.549 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dambis (1999) | E_B-V_=0.188, DM0=9.27, log_age_=7.5 |
| Dias et al. (2002) | E(B-V)=0.63, Dist=2291.0, Age=7.0 |
| Kharchenko et al. (2003) | E(B-V)=0.19, Dist=869 |
| Kharchenko et al. (2005) | E(B-V)=0.19, Dist=872, logt=7.25 |
| Piskunov et al. (2008) | E(B-V)=0.19, Dist=872, logt=7.25, logMA=1.02 |
| Kharchenko et al. (2013) | E(B-V)=0.208, d=870.0, logt=8.41 |
| Kharchenko et al. (2016) | E(B-V)=0.208, d=870.0, logt=8.41 |
| Loktin & Popova (2017) | E(B-V)=0.19, Dist=872, logt=7.567 |
| Cantat-Gaudin et al. (2018) | dmode=1266.4 |
| Cantat-Gaudin et al. (2020) | AVNN=0.39, DistPc=1285.0, AgeNN=7.98 |
| Dias et al. (2021) | Av=0.772, Dist=1258, logage=8.525, [Fe/H]=-0.03 |
| Tarricq et al. (2022) | Dist=1243, logAgeNN=7.96 |
| Just et al. (2023) | logt=8.41, logmt=1.245 |
| Hunt & Reffert (2023) | AV50=0.462, diffAV50=0.505, MOD50=10.447, logAge50=8.395 |
| Cavallo et al. (2024) | AV50=0.66, dMod50=10.55, logAge50=8.18, [Fe/H]50=0.06 |
| Hunt & Reffert (2024) | MassJ=288.628, MassTot=328.954 |
| Almeida et al. (2025) | AV=0.772, Dist=1258, logAge=8.525, MassRk=141.2 |
Search coordinates in Bayestar19