UBC 324
0.73
UTI
0.85
CN
1.0
Cdens
1.0
CC3
0.4
Clit
1.0
Cdup
Stellar density (N50/rad)
44.9 [N/pc2]
- CN 0.85 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.4 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 324 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.
Note: This object shares a large 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 | 255.946 | -38.47 | 0.525 | -3.293 | -3.795 | -65.434 |
| Li et al. | 2025 | 255.954 | -38.465 | 0.501 | -3.28 | -3.781 | â |
| Hu & Soubiran | 2025 | 255.944 | -38.473 | â | â | â | â |
| Hunt & Reffert | 2024 | 255.939 | -38.469 | 0.53 | -3.3 | -3.79 | -65.087 |
| Cavallo et al. | 2024 | 255.943 | -38.473 | 0.529 | â | â | â |
| Hunt & Reffert | 2023 | 255.939 | -38.469 | 0.53 | -3.3 | -3.79 | -65.087 |
| Cantat-Gaudin et al. | 2020 | 255.954 | -38.465 | 0.501 | -3.28 | -3.781 | â |
| Castro-Ginard et al. | 2020 | 255.952 | -38.456 | 0.497 | -3.284 | -3.781 | 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 | 2.965 | 2.43 | 606 | -0.100 | 3727 | â | â |
| Li et al. | 2025 | 1.49 | 3.00 | â | 676 | -0.145 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.100(5) | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 3727(1) | â | â |
| Cavallo et al. | 2024 | 1.59 | 3.12 | â | 537 | -0.100 | â | â | â |
| Hunt & Reffert | 2023 | 1.79 | 2.93 | 2.43 | 267 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.82 | 1.83 | â | 794 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
MOCA


Palma et al. (2025)
Classified as optical pair P163, along with OC_0677.
Cavallo et al. (2024)
Gold sample.