Bochum 2
Summary
Bochum 2 is a sparse, very loose object of low C3 quality. It is located at a large distance from the Sun, near the mid-plane. It is moderately studied in the literature.
This object shares a large percentage of members with a later reported entry.
Warning: contains less than 25 stars with P>0.5 estimated.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dambis (1999) | 102.225 | 0.383 | – | – | – | – |
| Dias et al. (2002) | 102.225 | 0.383 | – | -0.05 | -1.68 | 66.3 |
| Kharchenko et al. (2012) | 102.21 | 0.38 | – | 1.37 | -3.01 | – |
| Loktin & Popova (2017) | 102.225 | -0.383 | – | -0.05 | -1.68 | 67.0 |
| Jaehnig et al. (2021) | 102.21 | 0.378 | 0.161 | -0.316 | 0.228 | – |
| Hunt & Reffert (2023) | 102.207 | 0.377 | 0.192 | -0.309 | 0.24 | – |
| Cavallo et al. (2024) | 102.21 | 0.416 | 0.19 | – | – | – |
| Hunt & Reffert (2024) | 102.207 | 0.377 | 0.192 | -0.309 | 0.24 | – |
| UCC | 102.214 | 0.378 | 0.186 | -0.266 | 0.236 | 84.125 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dambis (1999) | E_B-V_=0.894, DM0=14.04, log_age_=6.4 |
| Dias et al. (2002) | E(B-V)=0.831, Dist=2661.0, Age=6.665 |
| Kharchenko et al. (2012) | e_bv=0.874, distance=2778, log_age=6.665 |
| Loktin & Popova (2017) | E(B-V)=0.847, Dist=2973, logt=6.654 |
| Jaehnig et al. (2021) | dmode=6.193 |
| Hunt & Reffert (2023) | AV50=2.623, diffAV50=2.408, MOD50=13.256, logAge50=7.9 |
| Cavallo et al. (2024) | AV50=2.77, dMod50=13.47, logAge50=7.72, [Fe/H]50=0.11 |
| Hunt & Reffert (2024) | MassJ=662.495, MassTot=840.436 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| CWNU 4122 | 84.0 | 102.22 | 0.38 | 0.18 | -0.24 | 0.22 | 84.13 | 0.01 |