UPK 90
Summary
UPK 90 is a poorly populated, very dense object of high C3 quality. It is located at a close distance from the Sun, near the mid-plane. It is well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Sim et al. (2019) | 299.787 | 28.408 | – | -0.83 | -5.72 | – |
| Cantat-Gaudin et al. (2020) | 299.777 | 28.422 | 1.228 | -0.824 | -5.705 | – |
| Dias et al. (2021) | 299.741 | 28.424 | 1.236 | -0.825 | -5.728 | – |
| Tarricq et al. (2022) | 299.765 | 28.457 | 1.242 | -0.85 | -5.752 | – |
| He et al. (2022) | 299.76 | 28.437 | 1.244 | -0.806 | -5.734 | – |
| Hunt & Reffert (2023) | 299.726 | 28.434 | 1.227 | -0.837 | -5.698 | -13.589 |
| Cavallo et al. (2024) | 299.769 | 28.437 | 1.236 | – | – | – |
| Hunt & Reffert (2024) | 299.726 | 28.434 | 1.227 | -0.837 | -5.698 | -13.589 |
| Alfonso et al. (2024) | 299.734 | 28.418 | 1.2 | -0.871 | -5.646 | – |
| Almeida et al. (2025) | 299.741 | 28.424 | – | – | – | – |
| UCC | 299.773 | 28.418 | 1.233 | -0.835 | -5.747 | -14.868 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Sim et al. (2019) | d_pc=793, log(age)=7.65 |
| Cantat-Gaudin et al. (2020) | AVNN=0.85, DistPc=791.0, AgeNN=7.69 |
| Dias et al. (2021) | Av=0.96, Dist=793, logage=8.586, [Fe/H]=0.076 |
| Tarricq et al. (2022) | Dist=776, logAgeNN=7.74 |
| He et al. (2022) | A0=1.25, logAge=7.7 |
| Hunt & Reffert (2023) | AV50=0.804, diffAV50=0.797, MOD50=9.458, logAge50=8.087 |
| Cavallo et al. (2024) | AV50=1.07, dMod50=9.6, logAge50=7.69, [Fe/H]50=-0.07 |
| Hunt & Reffert (2024) | MassJ=109.973, MassTot=117.761 |
| Alfonso et al. (2024) | AV=0.84907, MOD=9.49048, logAge=8.00517, Z=0.07549 |
| Almeida et al. (2025) | AV=0.96, Dist=793, logAge=8.586, MassRk=122.8 |
Search coordinates in Bayestar19