UBC 326
0.73
UTI
0.67
CN
1.0
Cdens
1.0
CC3
0.5
Clit
1.0
Cdup
Stellar density (N50/rad)
20.1 [N/pc2]
- CN 0.67 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.5 Moderately 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 326 is a moderately populated, 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, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 258.154 | -36.056 | 0.597 | -1.149 | -2.805 | -66.982 |
| Li et al. | 2025 | 258.155 | -36.056 | 0.569 | -1.113 | -2.806 | â |
| Almeida et al. | 2025 | 258.165 | -36.058 | â | â | â | â |
| Hunt & Reffert | 2024 | 258.143 | -36.05 | 0.597 | -1.136 | -2.804 | -57.721 |
| Cavallo et al. | 2024 | 258.153 | -36.053 | 0.598 | â | â | â |
| Hunt & Reffert | 2023 | 258.143 | -36.05 | 0.597 | -1.136 | -2.804 | -57.721 |
| Tarricq et al. | 2022 | 258.177 | -36.057 | 0.575 | -1.104 | -2.798 | â |
| Dias et al. | 2021 | 258.165 | -36.058 | 0.572 | -1.095 | -2.783 | -67.456 |
| Cantat-Gaudin et al. | 2020 | 258.155 | -36.056 | 0.569 | -1.113 | -2.806 | â |
| Castro-Ginard et al. | 2020 | 258.16 | -36.058 | 0.566 | -1.123 | -2.804 | 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 | 1.54 | 2.83 | 2.17 | 380 | 0.179 | 1030 | â | â |
| Li et al. | 2025 | 1.28 | 2.91 | â | 748 | -0.050 | â | â | â |
| Almeida et al. | 2025 | 1.54 | 2.83 | â | 380 | â | 562 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 1497(1) | â | â |
| Cavallo et al. | 2024 | 1.55 | 2.83 | â | 468 | 0.560 | â | â | â |
| Hunt & Reffert | 2023 | 1.56 | 3.05 | 2.17 | 222 | â | â | â | â |
| Tarricq et al. | 2022 | 1.49 | â | â | 309 | â | â | â | â |
| Dias et al. | 2021 | 1.54 | 2.83 | â | 380 | 0.179 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.56 | 2.30 | â | 263 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P154, along with HSC_2886.
Cavallo et al. (2024)
Gold sample.
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit. Silver sample.