Berkeley 15

(MWSC 453)

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0.85 UTI
0.77
CN
1.0
Cdens
0.75
CC3
0.86
Clit
1.0
Cdup
Radius (P>50% members) 2.6 [arcmin]
  • CN 0.77 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.86 Well-studied
  • Cdup 1.0 Unique

Overview

Berkeley 15 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.
Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024): Gold sample.

Data

Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 75.525 44.505 0.341 0.684 -0.957 -28.317
Almeida et al. 2025 75.511 44.499
Hunt & Reffert 2024 75.524 44.507 0.337 0.668 -0.977 -14.328
Celli et al. 2024 75.52 44.506
Cavallo et al. 2024 75.507 44.498 0.342
Hunt & Reffert 2023 75.524 44.507 0.337 0.668 -0.977 -14.328
Just et al. 2023 75.517 44.511
Dias et al. 2021 75.511 44.499 0.338 0.797 -0.88
Cantat-Gaudin et al. 2020 75.52 44.506 0.339 0.782 -0.872
Soubiran et al. 2018 75.52 44.506 -30.18
Cantat-Gaudin et al. 2018 75.52 44.506 0.339 0.782 -0.872
Loktin & Popova 2017 75.525 44.512 -0.303 -1.134
Kharchenko et al. 2016 75.517 44.511
Kharchenko et al. 2013 75.528 44.512 -1.29 -4.23
Kharchenko et al. 2012 75.528 44.512 -1.29 -4.23
Dias et al. 2002 75.521 44.5 -0.56 -1.2

💡 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
Almeida et al. 2025 2.10 2.77 17 627
Hunt & Reffert 2024 1158*
Celli et al. 2024 19 1090
Cavallo et al. 2024 2.94 3.04 42 0.450
Hunt & Reffert 2023 2.58 2.95 2.10 76
Just et al. 2023 2512 69
Dias et al. 2021 2.10 2.77 17 -0.176
Cantat-Gaudin et al. 2020 2.96 2.64 19
Soubiran et al. 2018 2.72
Cantat-Gaudin et al. 2018 2.72
Loktin & Popova 2017 4.10 2.37 363
Kharchenko et al. 2016 1.30 1.08 2512
Kharchenko et al. 2013 1.30 1.08 2512 0.000
Kharchenko et al. 2012 1.30 1.08 2512 0.000
Dias et al. 2002 1.20 0.71 2512 0.000

💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
(*): indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

Galactocentric position diagram

💡 Note: How are the galactocentric plots generated? See FAQ.