Berkeley 91
(MWSC 3476; OCL 206; FSR 0287)
0.89
UTI
0.7
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
Stellar density (N50/rad)
43.1 [N/pc2]
- CN 0.7 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 1.0 Very well-studied
- Cdup 1.0 Unique
π₯ Members
π Colab
π¬ Bayestar19
MOCA
π CDS
π Simbad
π CDS (Ξ±, Ξ΄)
π Simbad (Ξ±, Ξ΄)
MOCA
π CDS
π Simbad
π CDS (Ξ±, Ξ΄)
π Simbad (Ξ±, Ξ΄)
Overview
Berkeley 91 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a large distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is very well-studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999β | 317.724 | 48.54 | 0.182 | -1.611 | -3.142 | -47.575 |
| Hu & Soubiran | 2025 | 317.713 | 48.537 | β | β | β | β |
| Hunt & Reffert | 2024 | 317.72 | 48.542 | 0.21 | -1.675 | -3.241 | -47.546 |
| Cavallo et al. | 2024 | 317.713 | 48.537 | 0.198 | β | β | β |
| Hunt & Reffert | 2023 | 317.72 | 48.542 | 0.21 | -1.675 | -3.241 | -47.546 |
| Just et al. | 2023 | 317.71 | 48.532 | β | β | β | β |
| Cantat-Gaudin et al. | 2020 | 317.711 | 48.543 | 0.203 | -1.599 | -2.927 | β |
| SΓ‘nchez et al. | 2020 | 317.717 | 48.537 | β | -1.287 | -2.759 | β |
| Donor et al. | 2020 | 317.715 | 48.535 | β | -1.56 | -3.43 | -51.1 |
| Cantat-Gaudin & Anders | 2020 | 317.711 | 48.543 | 0.203 | -1.599 | -2.927 | β |
| Soubiran et al. | 2018 | 317.711 | 48.543 | β | β | β | -45.11 |
| Bica et al. | 2019 | 317.924 | 48.462 | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 317.711 | 48.543 | 0.203 | -1.599 | -2.927 | β |
| Loktin & Popova | 2017 | 317.715 | 48.537 | β | -0.791 | 0.163 | β |
| Kharchenko et al. | 2016 | 317.71 | 48.532 | β | β | β | β |
| Dias et al. | 2014 | 317.717 | 48.537 | β | -3.41 | -2.6 | β |
| Kharchenko et al. | 2013 | 317.715 | 48.535 | β | -3.97 | -0.56 | β |
| Kharchenko et al. | 2012 | 317.715 | 48.535 | β | -3.97 | -0.56 | β |
| Dias et al. | 2002 | 317.717 | 48.537 | β | -3.41 | -2.6 | β |
π‘ 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 | 99999β | 4.31 | 3.965 | 2.61 | 631 | -0.165 | 1744 | β | β |
| Hu & Soubiran | 2025 | β | β | β | β | -0.200(5) | β | β | β |
| Hunt & Reffert | 2024 | β | β | β | β | β | 1533(1) | β | β |
| Cavallo et al. | 2024 | 5.47 | 3.90 | β | 977 | -0.350 | β | β | β |
| Hunt & Reffert | 2023 | 4.23 | 3.46 | 2.61 | 1858 | β | β | β | β |
| Just et al. | 2023 | β | β | β | 251 | β | 1954 | β | β |
| Cantat-Gaudin et al. | 2020 | 6.05 | 4.04 | β | 631 | β | β | β | β |
| Donor et al. | 2020 | β | β | β | β | 0.090 | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 4.31 | β | β | β | β | β | β | β |
| Soubiran et al. | 2018 | 4.31 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 4.31 | β | β | β | β | β | β | β |
| Loktin & Popova | 2017 | 2.85 | 1.31 | β | 1585 | β | β | β | β |
| Kharchenko et al. | 2016 | 9.47 | 4.03 | β | 251 | β | β | β | β |
| Kharchenko et al. | 2013 | 9.47 | 4.03 | β | 251 | β | β | β | β |
| Kharchenko et al. | 2012 | 9.47 | 4.03 | β | 251 | β | β | β | β |
| Dias et al. | 2002 | 4.10 | 3.72 | β | 2239 | -0.130 | β | β | β |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.