UFMG 91
0.51
UTI
0.76
CN
0.53
Cdens
1.0
CC3
0.13
Clit
1.0
Cdup
Nm (P>50%)
118
Core radius and density
2.0 [pc], 2.7 [pc-2]
- CN 0.76 Rich
- Cdens 0.53 Moderately dense
- CC3 1.0 Very high quality
- Clit 0.13 Rarely 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
UFMG 91 is a rich, moderately dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is rarely studied in the literature.
Note: This object contains blue stragglers according to at least one source.
Note: This object shares a moderate percentage of members with 2 later reported entries. 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 | 264.866 | -35.081 | 0.303 | 0.262 | -3.694 | -46.463 |
| Hu & Soubiran | 2025 | 264.866 | -35.084 | â | â | â | â |
| Hunt & Reffert | 2024 | 264.866 | -35.084 | 0.301 | 0.251 | -3.699 | -44.147 |
| Cavallo et al. | 2024 | 264.866 | -35.084 | 0.302 | â | â | â |
| Hunt & Reffert | 2023 | 264.866 | -35.084 | 0.301 | 0.251 | -3.699 | -44.147 |
| Li et al. | 2023 | 264.867 | -35.079 | 0.3 | 0.24 | -3.71 | â |
| Ferreira et al. | 2021 | 264.868 | -35.075 | 0.269 | 0.222 | -3.637 | 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 | 2.92 | 3.41 | 1.64 | 1413 | -0.170 | 1697 | â | 3 |
| Hu & Soubiran | 2025 | â | â | â | â | -0.170(5) | â | â | â |
| Hunt & Reffert | 2024 | 2.92 | 3.41 | 1.64 | 540 | â | 1697(1) | â | â |
| Cavallo et al. | 2024 | 2.47 | 3.47 | â | 1413 | -0.620 | â | â | â |
| Hunt & Reffert | 2023 | 2.92 | 3.41 | 1.64 | 541 | â | â | â | â |
| Li et al. | 2023 | 3.63 | 2.10 | â | 7079 | -0.006 | â | â | 3(1) |
| Ferreira et al. | 2021 | 2.82 | 2.81 | â | 1778 | 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.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.35 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.35 (50th percentile).