UBC 540
Summary
UBC 540 is a poorly populated, dense object of very high C3 quality. It is located at a moderate distance from the Sun, near the mid-plane. It is poorly studied in the literature.
This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Castro-Ginard et al. (2020) | 243.789 | -51.7 | 0.302 | -3.554 | -4.012 | – |
| Cantat-Gaudin et al. (2020) | 243.758 | -51.688 | 0.303 | -3.567 | -4.015 | – |
| Dias et al. (2021) | 243.847 | -51.706 | 0.295 | -3.54 | -4.011 | -36.461 |
| Almeida et al. (2025) | 243.847 | -51.706 | – | – | – | – |
| UCC | 243.757 | -51.694 | 0.334 | -3.584 | -4.025 | -34.76 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Cantat-Gaudin et al. (2020) | AVNN=2.24, DistPc=2828.0, AgeNN=7.64 |
| Dias et al. (2021) | Av=2.426, Dist=2972, logage=7.036, [Fe/H]=0.26 |
| Almeida et al. (2025) | AV=2.426, Dist=2972, logAge=7.036, MassRk=1585.4 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| CWWDL 1583 | 83.3 | 243.74 | -51.69 | 0.35 | -3.61 | -4.01 | -34.39 | 0.15 |
| Ryu 288 | 29.2 | 243.74 | -51.65 | 0.37 | -3.61 | -3.99 | -34.76 | 0.28 |
