Berkeley 36

(MWSC 1156; OCL 577; FSR 1214)

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0.88 UTI
1.0
CN
1.0
Cdens
0.75
CC3
0.82
Clit
1.0
Cdup
Nm (P>50%) 1179
Core radius and density 2.2 [pc], 15 [pc-2]
C3 classification AB
  • CN 1.0 Very rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.82 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 36 is a very rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near 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 age and mass parameters (see Parameters). It is well-studied in the literature.

Note: This object contains blue stragglers according to at least one source.

Note: This object shares a very small percentage of members with 2 later reported entries. See table with shared members information.

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

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.17 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.17 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.2231, e_all=0.0852.

Data
πŸ” Search references for Berkeley 36 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 109.097 -13.197 0.226 -1.684 0.957 62.801
Otto et al. 2026 109.1 -13.193 – -1.73 0.86 62.6
Almeida et al. 2025 109.104 -13.201 – – – –
Hunt & Reffert 2024 109.1 -13.193 0.212 -1.693 0.958 62.662
Cavallo et al. 2024 109.087 -13.201 0.215 – – –
Hunt & Reffert 2023 109.1 -13.193 0.212 -1.693 0.958 62.662
Angelo et al. 2023 109.1 -13.185 – -1.72 0.95 –
Just et al. 2023 109.077 -13.176 – – – –
Jadhav & Subramaniam 2021 109.105 -13.196 – – – –
Dias et al. 2021 109.104 -13.201 0.182 -1.745 0.874 63.526
Cantat-Gaudin et al. 2020 109.105 -13.196 0.206 -1.725 0.86 –
SΓ‘nchez et al. 2020 109.1 -13.193 – -1.798 0.894 –
Cantat-Gaudin & Anders 2020 109.105 -13.196 0.206 -1.725 0.86 –
Soubiran et al. 2018 109.105 -13.196 – – – 63.54
Bica et al. 2019 109.095 -13.193 – – – –
Cantat-Gaudin et al. 2018 109.105 -13.196 0.206 -1.725 0.86 –
Dias et al. 2018 – – – -1.58 0.0 –
Sampedro et al. 2017 109.1 -13.193 – 1.44 0.38 –
Kharchenko et al. 2016 109.077 -13.176 – – – –
Dias et al. 2014 109.1 -13.193 – -1.15 2.32 –
Kharchenko et al. 2013 109.083 -13.178 – 3.31 2.63 –
Bukowiecki et al. 2011 109.1 -13.19 – – – –
Dias et al. 2002 109.1 -13.193 – -1.15 2.32 –
Lynga 1987 109.029 -13.092 – – – –

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– 4.37 1.8 2.38 2512 -0.160 2690 – 14
Otto et al. 2026 – – – 6761 -0.160(15) – – –
Almeida et al. 2025 4.98 1.80 – 3412 – 3808 – –
Hunt & Reffert 2024 3.88 1.95 2.38 1043 – 2690(1) – –
Cavallo et al. 2024 3.56 1.63 – 1820 -0.030 – – –
Hunt & Reffert 2023 3.88 1.95 2.38 1042 – – – –
Angelo et al. 2023 4.57 1.99 – 4467 -0.320 31(1) – –
Just et al. 2023 – – – 2512 – 2168 – –
Spina et al. 2022 – – – – -0.265 – – –
Jadhav & Subramaniam 2021 4.37 1.42 – 6761 – 12125 – 14(1)
Dias et al. 2021 4.98 1.80 – 3412 -0.030 – – –
Cantat-Gaudin et al. 2020 4.37 1.42 – 6761 – – – –
Kounkel et al. 2020 4.09 1.87 – 1175 – – – –
Cantat-Gaudin & Anders 2020 4.25 – – – – – – –
Soubiran et al. 2018 4.25 – – – – – – –
Cantat-Gaudin et al. 2018 4.25 – – – – – – –
Kharchenko et al. 2016 5.04 1.84 – 2512 – – – –
Kharchenko et al. 2013 5.04 1.84 – 2512 – – – –
Bukowiecki et al. 2011 7.54(1) 1.42 – 2239 – – – –
Dias et al. 2002 6.14 1.26 – 3162 – – – –

(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 0387 2.1 109.09 -13.19 0.23 -1.7 0.96 62.55 0.0
OC 0388 2.1 109.12 -13.18 0.16 -1.75 0.98 60.37 0.0

πŸ’‘ Note: The % column shows the percentage of members that Berkeley 36 shares with each listed object.

Visualization
ℹ️
Berkeley 36 UCC
Berkeley 36 HUNT23
Berkeley 36 CANTAT20
Galactocentric position diagram