UBC 559
Summary
UBC 559 is a poorly populated, loose object of very high C3 quality. It is located at a moderate distance from the Sun, near the mid-plane. It is moderately studied in the literature.
This object shares a small percentage of members with a later reported entry.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Castro-Ginard et al. (2020) | 259.156 | -39.688 | 0.39 | -0.494 | -1.412 | – |
| Cantat-Gaudin et al. (2020) | 259.123 | -39.699 | 0.386 | -0.493 | -1.409 | – |
| Dias et al. (2021) | 259.104 | -39.657 | 0.392 | -0.501 | -1.405 | – |
| Hunt & Reffert (2023) | 259.111 | -39.747 | 0.405 | -0.523 | -1.437 | 10.155 |
| Cavallo et al. (2024) | 259.141 | -39.665 | 0.405 | – | – | – |
| Celli et al. (2024) | 259.123 | -39.699 | – | – | – | – |
| Hunt & Reffert (2024) | 259.111 | -39.747 | 0.405 | -0.523 | -1.437 | 10.155 |
| Almeida et al. (2025) | 259.104 | -39.657 | – | – | – | – |
| UCC | 259.151 | -39.652 | 0.395 | -0.472 | -1.419 | -26.565 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Cantat-Gaudin et al. (2020) | AVNN=3.1, DistPc=2144.0, AgeNN=7.06 |
| Dias et al. (2021) | Av=3.175, Dist=2302, logage=6.955, [Fe/H]=0.287 |
| Hunt & Reffert (2023) | AV50=3.641, diffAV50=2.598, MOD50=11.786, logAge50=6.972 |
| Cavallo et al. (2024) | AV50=3.74, dMod50=11.58, logAge50=7.16, [Fe/H]50=-0.07 |
| Celli et al. (2024) | Age=11.5, Mc=1460.6 |
| Hunt & Reffert (2024) | MassJ=1265.95, MassTot=1407.01 |
| Almeida et al. (2025) | AV=3.175, Dist=2302, logAge=6.955, MassRk=2775.7 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| HSC 2874 | 10.4 | 259.09 | -39.34 | 0.39 | -0.47 | -1.42 | -43.02 | 0.25 |