UPK 25
Summary
UPK 25 is a sparse, very loose object of intermediate C3 quality. It is located at a close distance from the Sun, above the mid-plane. It is moderately studied in the literature.
Warning: contains less than 25 stars with P>0.5 estimated.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Sim et al. (2019) | 268.092 | -2.756 | – | -0.31 | 0.19 | – |
| Cantat-Gaudin et al. (2020) | 267.878 | -2.779 | 1.584 | -0.346 | 0.218 | – |
| Dias et al. (2021) | 267.993 | -2.804 | 1.553 | -0.306 | 0.183 | – |
| Hunt & Reffert (2023) | 268.274 | -2.725 | 1.596 | -0.279 | 0.183 | -18.921 |
| Cavallo et al. (2024) | 268.066 | -2.681 | 1.596 | – | – | – |
| Alfonso et al. (2024) | 268.416 | -2.714 | 1.49 | 0.326 | 0.146 | – |
| Almeida et al. (2025) | 267.993 | -2.804 | – | – | – | – |
| UCC | 267.87 | -2.779 | 1.605 | -0.277 | 0.219 | -13.814 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Sim et al. (2019) | d_pc=629, log(age)=8.95 |
| Cantat-Gaudin et al. (2020) | AVNN=1.38, DistPc=599.0, AgeNN=8.55 |
| Dias et al. (2021) | Av=2.101, Dist=625, logage=8.438, [Fe/H]=0.017 |
| Tarricq et al. (2022) | Dist=589, logAgeNN=8.55 |
| Hunt & Reffert (2023) | AV50=1.758, diffAV50=0.865, MOD50=8.842, logAge50=8.675 |
| Cavallo et al. (2024) | AV50=1.99, dMod50=8.92, logAge50=8.58, [Fe/H]50=0.08 |
| Alfonso et al. (2024) | AV=1.37867, MOD=8.89513, logAge=8.55216, Z=0.01681 |
| Almeida et al. (2025) | AV=2.101, Dist=625, logAge=8.438, MassRk=61.2 |
Search coordinates in Bayestar19