UBC 337
0.74
UTI
0.8
CN
1.0
Cdens
1.0
CC3
0.45
Clit
1.0
Cdup
Stellar density (N50/rad)
23.2 [N/pc2]
- CN 0.8 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.45 Poorly studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
UBC 337 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is poorly studied in the literature.
Note: This object shares a small percentage of members with a later reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 271.73 | -24.67 | 0.552 | 0.521 | -0.753 | 4.45 |
| Li et al. | 2025 | 271.722 | -24.649 | 0.566 | 0.482 | -0.711 | â |
| Almeida et al. | 2025 | 271.738 | -24.65 | â | â | â | â |
| Hunt & Reffert | 2024 | 271.688 | -24.684 | 0.531 | 0.516 | -0.785 | 23.748 |
| Cavallo et al. | 2024 | 271.725 | -24.694 | 0.535 | â | â | â |
| Hunt & Reffert | 2023 | 271.688 | -24.684 | 0.531 | 0.516 | -0.785 | 23.748 |
| Dias et al. | 2021 | 271.738 | -24.65 | 0.541 | 0.486 | -0.724 | 4.344 |
| Cantat-Gaudin et al. | 2020 | 271.722 | -24.649 | 0.566 | 0.482 | -0.711 | â |
| Castro-Ginard et al. | 2020 | 271.723 | -24.649 | 0.566 | 0.473 | -0.719 | â |
đĄ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.69 | 2.99 | 2.7 | 110 | -0.147 | 2046 | â | â |
| Li et al. | 2025 | 0.78 | 2.18 | â | 1686 | -0.147 | â | â | â |
| Almeida et al. | 2025 | 1.72 | 2.99 | â | 7 | â | 773 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 3320(1) | â | â |
| Cavallo et al. | 2024 | 1.32 | 3.84 | â | 295 | -0.380 | â | â | â |
| Hunt & Reffert | 2023 | 1.73 | 3.38 | 2.70 | 178 | â | â | â | â |
| Dias et al. | 2021 | 1.72 | 2.99 | â | 7 | 0.088 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.66 | 2.49 | â | 42 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.