UPK 422
(OCSN 310)
Summary
UPK 422 is a rich, very dense object of very high C3 quality. It is located at a very close distance from the Sun, below the mid-plane. It is 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 |
|---|---|---|---|---|---|---|
| Sim et al. (2019) | 88.105 | -7.539 | – | 0.25 | -0.6 | – |
| Cantat-Gaudin et al. (2020) | 88.007 | -7.543 | 3.316 | 0.187 | -0.571 | – |
| Dias et al. (2021) | 87.901 | -7.587 | 3.309 | 0.174 | -0.567 | 25.452 |
| He et al. (2022) | 88.098 | -7.468 | 3.33 | 0.172 | -0.55 | – |
| Qin et al. (2023) | 88.49 | -7.6 | 3.31 | 0.25 | -0.54 | 14.76 |
| Hunt & Reffert (2023) | 87.964 | -7.39 | 3.367 | 0.171 | -0.609 | 12.199 |
| Cavallo et al. (2024) | 87.502 | -8.043 | 3.379 | – | – | – |
| Celli et al. (2024) | 88.007 | -7.543 | – | – | – | – |
| Hunt & Reffert (2024) | 87.964 | -7.39 | 3.367 | 0.171 | -0.609 | 12.199 |
| Zhang et al. (2024) | 87.964 | -7.39 | – | – | – | – |
| Alfonso et al. (2024) | 88.01 | -7.467 | 3.306 | 0.15 | -0.579 | – |
| Almeida et al. (2025) | 87.901 | -7.587 | – | – | – | – |
| UCC | 87.879 | -7.53 | 3.319 | 0.137 | -0.564 | 15.74 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Sim et al. (2019) | d_pc=304, log(age)=7.3 |
| Cantat-Gaudin et al. (2020) | AVNN=0.26, DistPc=295.0, AgeNN=7.29 |
| Dias et al. (2021) | Av=0.363, Dist=297, logage=7.422, [Fe/H]=0.061 |
| He et al. (2022) | A0=0.2, logAge=7.25 |
| Qin et al. (2023) | E(B-V)=0.07, m-M=7.45, logt=7.3 |
| Hunt & Reffert (2023) | AV50=0.276, diffAV50=0.68, MOD50=7.318, logAge50=7.172 |
| Cavallo et al. (2024) | AV50=0.61, dMod50=7.34, logAge50=7.17, [Fe/H]50=0.09 |
| Celli et al. (2024) | Age=19.5, Mc=94.7 |
| Hunt & Reffert (2024) | MassJ=88.4845, MassTot=131.422 |
| Zhang et al. (2024) | [Fe/H]ANN=-0.0221, [Fe/H]MCMC=0.00533 |
| Alfonso et al. (2024) | AV=0.25950, MOD=7.35002, logAge=7.34257, Z=0.06092 |
| Almeida et al. (2025) | AV=0.363, Dist=297, logAge=7.422, MassRk=113.8 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| CWWDL 14554 | 22.9 | 88.52 | -7.61 | 3.34 | 0.27 | -0.56 | 12.95 | 0.0 |