UPK 55
Summary
UPK 55 is a moderately populated, dense object of high C3 quality. It is located at a close distance from the Sun, below the mid-plane. It is well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Sim et al. (2019) | 296.7 | 10.463 | – | -1.43 | -6.86 | – |
| Cantat-Gaudin et al. (2020) | 296.812 | 10.428 | 1.252 | -1.383 | -6.87 | – |
| Dias et al. (2021) | 296.798 | 10.421 | 1.253 | -1.386 | -6.86 | – |
| Tarricq et al. (2022) | 296.844 | 10.401 | 1.258 | -1.441 | -6.884 | – |
| Hunt & Reffert (2023) | 296.669 | 10.433 | 1.243 | -1.437 | -6.885 | -15.757 |
| Cavallo et al. (2024) | 296.799 | 10.451 | 1.248 | – | – | – |
| Hunt & Reffert (2024) | 296.669 | 10.433 | 1.243 | -1.437 | -6.885 | -15.757 |
| Alfonso et al. (2024) | 296.723 | 10.487 | 1.217 | -1.423 | -6.868 | – |
| Almeida et al. (2025) | 296.798 | 10.421 | – | – | – | – |
| UCC | 296.809 | 10.421 | 1.261 | -1.438 | -6.908 | -9.477 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Sim et al. (2019) | d_pc=777, log(age)=7.95 |
| Cantat-Gaudin et al. (2020) | AVNN=0.54, DistPc=769.0, AgeNN=8.33 |
| Dias et al. (2021) | Av=0.742, Dist=771, logage=8.392, [Fe/H]=0.042 |
| Tarricq et al. (2022) | Dist=756, logAgeNN=8.4 |
| Hunt & Reffert (2023) | AV50=0.678, diffAV50=1.303, MOD50=9.415, logAge50=7.977 |
| Cavallo et al. (2024) | AV50=0.72, dMod50=9.53, logAge50=8.06, [Fe/H]50=0.4 |
| Hunt & Reffert (2024) | MassJ=208.180, MassTot=260.258 |
| Alfonso et al. (2024) | AV=0.53997, MOD=9.42985, logAge=8.34907, Z=0.04215 |
| Almeida et al. (2025) | AV=0.742, Dist=771, logAge=8.392, MassRk=135.3 |
Search coordinates in Bayestar19