UBC 527
0.64
UTI
0.36
CN
1.0
Cdens
0.75
CC3
0.55
Clit
1.0
Cdup
Stellar density (N50/rad)
9.8 [N/pc2]
- CN 0.36 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.55 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 527 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately 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 | 204.54 | -66.654 | 0.561 | -7.541 | -2.625 | -59.78 |
| Li et al. | 2025 | 204.529 | -66.651 | 0.553 | -7.503 | -2.654 | â |
| Hu & Soubiran | 2025 | 204.518 | -66.666 | â | â | â | â |
| Almeida et al. | 2025 | 204.538 | -66.666 | â | â | â | â |
| Hunt & Reffert | 2024 | 204.561 | -66.64 | 0.563 | -7.573 | -2.624 | -59.728 |
| Cavallo et al. | 2024 | 204.518 | -66.666 | 0.568 | â | â | â |
| Hunt & Reffert | 2023 | 204.561 | -66.64 | 0.563 | -7.573 | -2.624 | -59.728 |
| Almeida et al. | 2023 | 204.552 | -66.669 | â | â | â | â |
| Dias et al. | 2021 | 204.538 | -66.666 | 0.554 | -7.508 | -2.647 | â |
| Cantat-Gaudin et al. | 2020 | 204.529 | -66.651 | 0.553 | -7.503 | -2.654 | â |
| Castro-Ginard et al. | 2020 | 204.528 | -66.658 | 0.553 | -7.506 | -2.653 | 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 | 0.88 | 0.51 | 251 | 0.054 | 175 | 0.57 | â |
| Li et al. | 2025 | 1.44 | 0.88 | â | 440 | -0.165 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.250(5) | â | â | â |
| Almeida et al. | 2025 | 1.77 | 0.95 | â | 225 | â | 175 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 249(1) | â | â |
| Cavallo et al. | 2024 | 1.51 | 0.68 | â | 617 | 0.090 | â | â | â |
| Hunt & Reffert | 2023 | 1.69 | 0.77 | 0.51 | 324 | â | â | â | â |
| Almeida et al. | 2023 | 1.66 | 1.08 | â | 203 | 0.054 | 168(1) | 0.57 | â |
| Dias et al. | 2021 | 1.77 | 0.95 | â | 225 | 0.350 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.69 | 0.79 | â | 251 | 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: good fit. Silver sample.