Stock 4
Summary
Stock 4 is a rich, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, below the mid-plane. It is well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Piskunov et al. (2007) | 28.235 | 57.065 | – | – | – | – |
| Piskunov et al. (2008) | 28.235 | 57.065 | – | – | – | – |
| Kharchenko et al. (2012) | 28.282 | 57.01 | – | 0.93 | 0.49 | – |
| Cantat-Gaudin et al. (2018) | 28.039 | 57.055 | 0.729 | -1.115 | 0.341 | – |
| Cantat-Gaudin et al. (2020) | 28.039 | 57.055 | 0.729 | -1.115 | 0.341 | – |
| Dias et al. (2021) | 28.06 | 57.049 | 0.727 | -1.13 | 0.334 | – |
| Tarricq et al. (2022) | 28.063 | 57.054 | 0.721 | -1.081 | 0.303 | – |
| Hunt & Reffert (2023) | 28.012 | 57.056 | 0.728 | -1.076 | 0.285 | -39.003 |
| Cavallo et al. (2024) | 28.021 | 57.056 | 0.73 | – | – | – |
| Hunt & Reffert (2024) | 28.012 | 57.056 | 0.728 | -1.076 | 0.285 | -39.003 |
| Almeida et al. (2025) | 28.06 | 57.049 | – | – | – | – |
| UCC | 28.016 | 57.054 | 0.73 | -1.092 | 0.303 | -32.005 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Piskunov et al. (2007) | E(B-V)=0.1, Dist=1200, logt=8.7, logM=1.968 |
| Piskunov et al. (2008) | E(B-V)=0.1, Dist=1200, logt=8.7, logM=2.448, logMA=2.623 |
| Kharchenko et al. (2012) | e_bv=0.05, distance=900, log_age=8.6 |
| Cantat-Gaudin et al. (2018) | dmode=1318.6 |
| Cantat-Gaudin et al. (2020) | AVNN=0.56, DistPc=1322.0, AgeNN=7.85 |
| Dias et al. (2021) | Av=0.842, Dist=1281, logage=7.82, [Fe/H]=0.024 |
| Tarricq et al. (2022) | Dist=1283, logAgeNN=7.88 |
| Hunt & Reffert (2023) | AV50=0.618, diffAV50=0.508, MOD50=10.552, logAge50=8.034 |
| Cavallo et al. (2024) | AV50=0.68, dMod50=10.72, logAge50=8.16, [Fe/H]50=0.19 |
| Hunt & Reffert (2024) | MassJ=474.983, MassTot=500.730 |
| Almeida et al. (2025) | AV=0.842, Dist=1281, logAge=7.82, MassRk=258.2 |
Search coordinates in Bayestar19