UPK 442
Summary
UPK 442 is a moderately populated, loose object of very high C3 quality. It is located at a close distance from the Sun, below the mid-plane. It is moderately studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Sim et al. (2019) | 98.484 | -11.755 | – | -2.54 | -1.32 | – |
| Cantat-Gaudin et al. (2020) | 98.4 | -11.549 | 1.558 | -2.58 | -1.322 | – |
| Dias et al. (2021) | 98.601 | -11.806 | 1.512 | -2.562 | -1.315 | 26.227 |
| Tarricq et al. (2022) | 98.026 | -11.388 | 1.597 | -2.561 | -1.394 | – |
| Hunt & Reffert (2023) | 97.852 | -12.557 | 1.539 | -2.551 | -1.34 | 20.99 |
| Cavallo et al. (2024) | 98.203 | -11.98 | 1.549 | – | – | – |
| Alfonso et al. (2024) | 98.23 | -12.045 | 1.536 | -2.523 | -1.381 | – |
| Almeida et al. (2025) | 98.601 | -11.806 | – | – | – | – |
| UCC | 98.163 | -11.77 | 1.579 | -2.575 | -1.358 | 22.394 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Sim et al. (2019) | d_pc=640, log(age)=7.7 |
| Cantat-Gaudin et al. (2020) | AVNN=0.26, DistPc=622.0, AgeNN=8.23 |
| Dias et al. (2021) | Av=0.536, Dist=649, logage=7.927, [Fe/H]=-0.152 |
| Tarricq et al. (2022) | Dist=613, logAgeNN=8.25 |
| Hunt & Reffert (2023) | AV50=0.221, diffAV50=1.257, MOD50=8.938, logAge50=7.833 |
| Cavallo et al. (2024) | AV50=0.45, dMod50=9.15, logAge50=7.09, [Fe/H]50=0.14 |
| Alfonso et al. (2024) | AV=0.26022, MOD=8.96984, logAge=7.63539, Z=-0.1517 |
| Almeida et al. (2025) | AV=0.536, Dist=649, logAge=7.927, MassRk=170.1 |
Search coordinates in Bayestar19