Berkeley 19

(MWSC 527; OCL 450)

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0.90 UTI
0.77
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 165
Radius (P>50% members) 2.0 [arcmin]
  • CN 0.77 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
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Berkeley 19 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is very well-studied in the literature.

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

Very distant Moderate extinction Near-solar metallicity Old Contains BSS

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 19 in: SciX Simbad
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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 81.019 29.574 0.158 0.7 -0.306 19.324
Hu & Soubiran 2025 81.024 29.577 – – – –
Almeida et al. 2025 81.017 29.587 – – – –
Zhang et al. 2024 81.013 29.572 – – – –
Hunt & Reffert 2024 81.013 29.572 0.132 0.658 -0.33 16.031
Cavallo et al. 2024 81.024 29.577 0.132 – – –
Hunt & Reffert 2023 81.013 29.572 0.132 0.658 -0.33 16.031
Just et al. 2023 80.993 29.567 – – – –
Jaehnig et al. 2021 81.006 29.577 0.158 0.729 -0.302 –
Rain et al. 2021 81.014 29.575 0.135 0.757 -0.329 –
Dias et al. 2021 81.017 29.587 0.11 0.758 -0.31 –
Cantat-Gaudin et al. 2020 81.014 29.575 0.135 0.757 -0.329 –
Donor et al. 2020 81.003 29.567 – 0.64 -0.23 17.8
Cantat-Gaudin & Anders 2020 81.014 29.575 0.135 0.757 -0.329 –
Soubiran et al. 2018 81.014 29.575 – – – 17.65
Bica et al. 2019 81.016 29.572 – – – –
Cantat-Gaudin et al. 2018 81.014 29.575 0.135 0.757 -0.329 –
Kharchenko et al. 2016 80.993 29.567 – – – –
Kharchenko et al. 2013 81.003 29.567 – 2.55 -2.2 –
Gozha et al. 2012 81.025 29.6 – – – –
Kharchenko et al. 2012 81.003 29.567 – 2.55 -2.2 –
Glushkova et al. 2010 81.012 29.571 – – – –
van den Bergh 2006 81.025 29.6 – – – –
Chen et al. 2003 81.022 29.6 – – – –
Dias et al. 2002 81.025 29.6 – 3.36 -4.55 –

💡 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
Hu & Soubiran 2025 – – – – -0.280* – – –
Almeida et al. 2025 5.84 1.47 – 2070 – 924 – –
Zhang et al. 2024 – – – – -0.366* – – –
Hunt & Reffert 2024 – – – – – 823* – –
Cavallo et al. 2024 4.70 1.00 – 4898 -0.120 – – –
Hunt & Reffert 2023 5.68 1.33 2.26 586 – – – –
Just et al. 2023 – – – 3162 – 399 – –
Jaehnig et al. 2021 6.54* – – – – – – –
Rain et al. 2021 6.11 0.99 – 2512 – – – 13
Dias et al. 2021 5.84 1.47 – 2070 -0.308 – – –
Cantat-Gaudin et al. 2020 6.58 0.85 – 2188 – – – –
Donor et al. 2020 – – – – -0.320 – – –
Cantat-Gaudin & Anders 2020 6.11 – – – – – – –
Soubiran et al. 2018 6.11 – – – – – – –
Cantat-Gaudin et al. 2018 6.11 – – – – – – –
Kharchenko et al. 2016 4.80 1.24 – 3162 – – – –
Kharchenko et al. 2013 4.80 1.24 – 3162 -0.500 – – –
Gozha et al. 2012 4.83 – – 3090 -0.500 – – –
Kharchenko et al. 2012 4.80 1.24 – 3162 -0.500 – – –
Glushkova et al. 2010 3.00 1.89 – 1778 – – – –
van den Bergh 2006 4.83 1.24 – 3090 – – – –
Chen et al. 2003 4.83 1.24 – 3090 -0.500* – – –
Dias et al. 2002 7.87 0.99 – 2512 -0.500 – – –

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

Visualization
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Berkeley 19 UCC
Berkeley 19 HUNT23
Berkeley 19 CANTAT20
Galactocentric position diagram