Berkeley 37

(MWSC 1180; OCL 551; FSR 1119; FoF 1976)

Click to load Aladin Lite
0.91 UTI
0.79
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 197
Radius (P>50% members) 2.8 [arcmin]
  • CN 0.79 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Berkeley 37 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, well above 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 absorption and metallicity parameters (see Parameters). It is very well-studied in the literature.
Distant Low extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Berkeley 37 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 110.074 -0.998 0.184 -1.063 0.71 77.945
Li et al. 2025 110.075 -1.002 0.197 -1.113 0.682 –
Hu & Soubiran 2025 110.075 -1.004 – – – –
Almeida et al. 2025 110.079 -1.004 – – – –
Zhang et al. 2024 110.069 -0.998 – – – –
Hunt & Reffert 2024 110.069 -0.998 0.183 -1.052 0.712 81.747
Cavallo et al. 2024 110.075 -1.003 0.182 – – –
Hunt & Reffert 2023 110.069 -0.998 0.183 -1.052 0.712 81.747
Almeida et al. 2023 110.079 -1.004 – – – –
Just et al. 2023 110.07 -0.992 – – – –
Dias et al. 2021 110.079 -1.004 0.212 -1.127 0.682 –
Cantat-Gaudin et al. 2020 110.075 -1.002 0.197 -1.113 0.682 –
Cantat-Gaudin & Anders 2020 110.075 -1.002 0.197 -1.113 0.682 –
Liu & Pang 2019 110.073 -1.012 0.287 -1.045 0.551 –
Soubiran et al. 2018 110.075 -1.002 – – – 76.4
Bica et al. 2019 110.077 -1.0 – – – –
Cantat-Gaudin et al. 2018 110.075 -1.002 0.197 -1.113 0.682 –
Loktin & Popova 2017 110.07 -1.044 – 6.244 -4.653 –
Kharchenko et al. 2016 110.07 -0.992 – – – –
Dias et al. 2014 110.1 -1.1 – -2.44 5.44 –
Kharchenko et al. 2013 110.077 -0.994 – 6.88 -4.6 –
Gozha et al. 2012 110.1 -1.1 – – – –
Dias et al. 2002 110.1 -1.1 – -2.44 5.44 –

💡 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] Bfr BSS
Li et al. 2025 5.55 0.23 – 647 0.229 – – –
Hu & Soubiran 2025 – – – – -0.360* – – –
Almeida et al. 2025 4.22 0.30 – 1045 – 704 – –
Zhang et al. 2024 – – – – -0.225* – – –
Hunt & Reffert 2024 – – – – – 1435* – –
Cavallo et al. 2024 3.18 0.57 – 1318 -0.800 – – –
Hunt & Reffert 2023 5.03 0.07 0.34 1019 – – – –
Almeida et al. 2023 4.40 0.29 – 991 -0.222 598* 0.52 –
Just et al. 2023 – – – 631 – 577 – –
Dias et al. 2021 4.22 0.30 – 1045 -0.309 – – –
Cantat-Gaudin et al. 2020 4.19 0.17 – 933 – – – –
Cantat-Gaudin & Anders 2020 4.42 – – – – – – –
Liu & Pang 2019 – – – 676 0.500 – – –
Soubiran et al. 2018 4.42 – – – – – – –
Cantat-Gaudin et al. 2018 4.42 – – – – – – –
Loktin & Popova 2017 4.17 0.00 – 2399 – – – –
Kharchenko et al. 2016 4.82 0.84 – 631 – – – –
Kharchenko et al. 2013 4.82 0.84 – 631 -0.380 – – –
Gozha et al. 2012 5.62 – – 1585 -0.380 – – –
Dias et al. 2002 5.25 0.16 – 631 -0.050 – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization
ℹī¸
Berkeley 37 UCC
Berkeley 37 HUNT23
Berkeley 37 CANTAT20
Galactocentric position diagram