UBC 340
Summary
UBC 340 is a rich, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, near the mid-plane. It is well-studied in the literature.
This object shares a significant percentage of members with a later reported entry.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Castro-Ginard et al. (2020) | 270.767 | -22.657 | 0.702 | 0.722 | -2.568 | – |
| Cantat-Gaudin et al. (2020) | 270.774 | -22.649 | 0.702 | 0.723 | -2.553 | – |
| Dias et al. (2021) | 270.768 | -22.654 | 0.709 | 0.708 | -2.573 | – |
| Tarricq et al. (2022) | 270.74 | -22.649 | 0.72 | 0.681 | -2.619 | – |
| He et al. (2022) | 270.623 | -23.033 | 0.831 | 0.605 | -1.761 | – |
| Hunt & Reffert (2023) | 270.761 | -22.66 | 0.721 | 0.668 | -2.602 | -17.725 |
| Cavallo et al. (2024) | 270.795 | -22.642 | 0.723 | – | – | – |
| Hunt & Reffert (2024) | 270.761 | -22.66 | 0.721 | 0.668 | -2.602 | -17.725 |
| Almeida et al. (2025) | 270.768 | -22.654 | – | – | – | – |
| UCC | 270.778 | -22.646 | 0.722 | 0.684 | -2.598 | -38.598 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Cantat-Gaudin et al. (2020) | AVNN=1.79, DistPc=1383.0, AgeNN=8.63 |
| Dias et al. (2021) | Av=2.13, Dist=1388, logage=8.109, [Fe/H]=0.237 |
| Tarricq et al. (2022) | Dist=1325, logAgeNN=8.7 |
| He et al. (2022) | A0=2.1, logAge=6.9 |
| Hunt & Reffert (2023) | AV50=2.437, diffAV50=2.732, MOD50=10.575, logAge50=7.506 |
| Cavallo et al. (2024) | AV50=2.74, dMod50=10.32, logAge50=7.81, [Fe/H]50=0.18 |
| Hunt & Reffert (2024) | MassJ=1305.07, MassTot=1316.65 |
| Almeida et al. (2025) | AV=2.13, Dist=1388, logAge=8.109, MassRk=354.0 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| XDOCC 08 | 65.7 | 270.77 | -22.65 | 0.72 | 0.68 | -2.61 | -36.74 | 0.0 |
