Berkeley 57

(NGC 7423; MWSC 3674; OCL 246; FSR 0391)

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0.91 UTI
0.8
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 234
Stellar density (N50/rad) 60.6 [N/pc2]
C3 classification AB
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Berkeley 57 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

Note: This object shares a small percentage of members with a later reported entry. See table with shared members information.

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit. Silver sample.

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for Berkeley 57 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 343.788 57.098 0.252 -1.217 -1.289 -37.501
Li et al. 2025 343.789 57.096 0.239 -1.247 -1.25 –
Hu & Soubiran 2025 343.796 57.089 – – – –
Almeida et al. 2025 343.782 57.092 – – – –
Hunt & Reffert 2024 343.788 57.099 0.252 -1.217 -1.293 -37.606
Cavallo et al. 2024 343.796 57.089 0.251 – – –
Hunt & Reffert 2023 343.788 57.099 0.252 -1.217 -1.293 -37.606
Almeida et al. 2023 343.785 57.093 – – – –
Just et al. 2023 343.785 57.092 – – – –
Dias et al. 2021 343.782 57.092 0.241 -1.257 -1.229 -38.0
Cantat-Gaudin et al. 2020 343.789 57.096 0.239 -1.247 -1.25 –
SΓ‘nchez et al. 2020 343.783 57.097 – -1.31 -1.074 –
Cantat-Gaudin & Anders 2020 343.789 57.096 0.239 -1.247 -1.25 –
Soubiran et al. 2018 343.789 57.096 – – – -38.43
Bica et al. 2019 343.8 57.095 – – – –
Cantat-Gaudin et al. 2018 343.789 57.096 0.239 -1.247 -1.25 –
Loktin & Popova 2017 343.785 57.097 – 0.719 0.361 –
Kharchenko et al. 2016 343.785 57.092 – – – –
Dias et al. 2014 343.783 57.097 – -1.43 -4.32 –
Kharchenko et al. 2013 343.791 57.095 – 3.91 1.24 –
Kharchenko et al. 2012 343.791 57.095 – 3.91 1.24 –
Dias et al. 2002 343.783 57.097 – -1.43 -4.32 –

πŸ’‘ 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 99999– 3.75 1.915 1.76 1330 -0.186 1448 0.81 –
Li et al. 2025 3.79 1.96 – 1360 -0.046 – – –
Hu & Soubiran 2025 – – – – -0.220(5) – – –
Almeida et al. 2025 3.75 1.97 – 1403 – 1122 – –
Hunt & Reffert 2024 – – – – – 1775(1) – –
Cavallo et al. 2024 2.84 2.27 – 1622 -0.480 – – –
Hunt & Reffert 2023 3.60 1.81 1.76 1194 – – – –
Almeida et al. 2023 3.69 2.11 – 1330 -0.186 776(1) 0.81 –
Just et al. 2023 – – – 796 – 1849 – –
Dias et al. 2021 3.75 1.97 – 1403 -0.061 – – –
Cantat-Gaudin et al. 2020 3.98 1.20 – 1585 – – – –
Cantat-Gaudin & Anders 2020 3.73 – – – – – – –
Soubiran et al. 2018 3.73 – – – – – – –
Cantat-Gaudin et al. 2018 3.73 – – – – – – –
Loktin & Popova 2017 3.99 1.87 – 891 – – – –
Kharchenko et al. 2016 6.00 1.55 – 796 – – – –
Kharchenko et al. 2013 6.00 1.55 – 796 – – – –
Kharchenko et al. 2012 6.00 1.55 – 796 – – – –
Dias et al. 2002 4.15 2.33 – 1413 – – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0191 13.7 343.79 57.1 0.26 -1.21 -1.31 -37.5 0.0

πŸ’‘ Note: The % column shows the percentage of members that Berkeley 57 shares with each listed object.

Visualization
ℹ️
Berkeley 57 UCC
Berkeley 57 HUNT23
Berkeley 57 CANTAT20
Galactocentric position diagram