UPK 398
(OCSN 308)
Summary
UPK 398 is a moderately populated, 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.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Sim et al. (2019) | 86.012 | 7.027 | – | -3.34 | -1.76 | – |
| Cantat-Gaudin et al. (2020) | 85.994 | 7.021 | 2.176 | -3.315 | -1.714 | – |
| Dias et al. (2021) | 85.989 | 7.063 | 2.172 | -3.298 | -1.747 | 30.658 |
| He et al. (2022) | 86.057 | 7.039 | 2.26 | -3.232 | -1.761 | – |
| Qin et al. (2023) | 85.96 | 7.04 | 2.26 | -3.27 | -1.74 | 27.92 |
| Hunt & Reffert (2023) | 85.956 | 7.059 | 2.251 | -3.257 | -1.748 | 25.231 |
| Cavallo et al. (2024) | 86.093 | 7.006 | 2.255 | – | – | – |
| Celli et al. (2024) | 85.994 | 7.021 | – | – | – | – |
| Hunt & Reffert (2024) | 85.956 | 7.059 | 2.251 | -3.257 | -1.748 | 25.231 |
| Alfonso et al. (2024) | 85.995 | 7.024 | 2.2 | -3.213 | -1.777 | – |
| Almeida et al. (2025) | 85.989 | 7.063 | – | – | – | – |
| UCC | 86.019 | 7.035 | 2.24 | -3.26 | -1.781 | 29.613 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Sim et al. (2019) | d_pc=452, log(age)=7.1 |
| Cantat-Gaudin et al. (2020) | AVNN=0.38, DistPc=448.0, AgeNN=7.03 |
| Dias et al. (2021) | Av=0.469, Dist=448, logage=7.152, [Fe/H]=0.007 |
| He et al. (2022) | A0=0.05, logAge=6.95 |
| Qin et al. (2023) | E(B-V)=0.1, m-M=8.49, logt=6.85 |
| Hunt & Reffert (2023) | AV50=0.799, diffAV50=1.028, MOD50=8.149, logAge50=7.067 |
| Cavallo et al. (2024) | AV50=1.0, dMod50=8.47, logAge50=6.55, [Fe/H]50=-0.03 |
| Celli et al. (2024) | Age=10.7, Mc=56.8 |
| Hunt & Reffert (2024) | MassJ=50.5334, MassTot=54.3790 |
| Alfonso et al. (2024) | AV=0.37935, MOD=8.25193, logAge=7.02339, Z=0.00742 |
| Almeida et al. (2025) | AV=0.469, Dist=448, logAge=7.152, MassRk=65.3 |
Search coordinates in Bayestar19