Stock 12

(MWSC 3743; OCL 258; FoF 2399; OCSN 267)

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0.96 UTI
0.8
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 220
Radius (P>50% members) 28.4 [arcmin]
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very 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¸
Stock 12 is a rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near 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 age and metallicity parameters (see Parameters). It is very well-studied in the literature.
Very close Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Stock 12 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 353.892 52.645 2.281 8.556 -1.89 -4.172
Li et al. 2025 353.923 52.685 2.261 8.527 -1.846 –
Almeida et al. 2025 353.978 52.698 – – – –
Alfonso et al. 2024 -5.941 52.69 2.27 8.513 -2.006 –
Zhang et al. 2024 353.87 52.623 – – – –
Hunt & Reffert 2024 353.87 52.623 2.287 8.571 -1.917 -3.151
Cavallo et al. 2024 353.946 52.634 2.289 – – –
Hunt & Reffert 2023 353.87 52.623 2.287 8.571 -1.917 -3.151
Cordoni et al. 2023 353.978 52.698 2.257 8.547 -1.857 –
Qin et al. 2023 353.99 52.66 2.29 8.53 -1.93 -4.63
Just et al. 2023 353.887 52.682 – – – –
He et al. 2022 354.008 52.713 2.28 8.535 -1.883 –
Tarricq et al. 2022 353.803 52.649 2.269 8.522 -1.869 –
Dias et al. 2021 353.978 52.698 2.257 8.547 -1.857 -3.469
Cantat-Gaudin et al. 2020 353.923 52.685 2.261 8.527 -1.846 –
Cantat-Gaudin & Anders 2020 353.923 52.685 2.261 8.527 -1.846 –
Liu & Pang 2019 354.006 52.72 2.256 8.519 -1.853 –
Bossini et al. 2019 353.923 52.685 – – – –
Soubiran et al. 2018 353.923 52.685 – – – -4.2
Bica et al. 2019 354.108 52.522 – – – –
Cantat-Gaudin et al. 2018 353.923 52.685 2.261 8.527 -1.846 –
Loktin & Popova 2017 354.09 52.543 – 7.55 -2.07 -18.6
Kharchenko et al. 2016 353.887 52.682 – – – –
Dias et al. 2014 354.083 52.543 – -1.65 -0.32 –
Kharchenko et al. 2013 353.895 52.685 – 7.55 -2.0 -18.6
Kharchenko et al. 2012 353.895 52.685 – 7.55 -2.07 –
Piskunov et al. 2008 353.888 52.69 – – – –
Piskunov et al. 2007 353.888 52.69 – – – –
Kharchenko et al. 2005 353.89 52.69 – 7.92 -1.81 –
Kharchenko et al. 2003 353.94 52.62 – 7.73 -1.48 –
Dias et al. 2002 354.083 52.543 – 7.55 -2.07 -18.6

💡 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 0.44 0.28 – 225 0.149 – – –
Almeida et al. 2025 0.44 0.42 – 176 – 165 – –
Alfonso et al. 2024 0.45 0.29 – 77 0.003 – – –
Zhang et al. 2024 – – – – -0.080* – – –
Hunt & Reffert 2024 – – – – – 189* – –
Cavallo et al. 2024 0.44 0.53 – 126 0.240 – – –
Hunt & Reffert 2023 0.42 0.21 0.75 124 – – – –
Cordoni et al. 2023 0.44 0.42 – 176 0.002 182 0.18 0.00
Qin et al. 2023 0.51 0.40 – 100 – – – –
Just et al. 2023 – – – 282 – 44 – –
He et al. 2022 – 0.35 – 79 – – – –
Tarricq et al. 2022 0.45 – – 112 – – – –
Dias et al. 2021 0.44 0.42 – 176 0.002 – – –
Cantat-Gaudin et al. 2020 0.45 0.29 – 112 – – – –
Cantat-Gaudin & Anders 2020 0.44 – – – – – – –
Liu & Pang 2019 – – – 46 -0.750 – – –
Bossini et al. 2019 0.41 0.27 – 154 0.000 – – –
Soubiran et al. 2018 0.44 – – – – – – –
Cantat-Gaudin et al. 2018 0.44 – – – – – – –
Loktin & Popova 2017 0.51 0.19 – 251 – – – –
Kharchenko et al. 2016 0.43 0.16 – 282 – – – –
Kharchenko et al. 2013 0.43 0.16 – 282 – – – –
Kharchenko et al. 2012 0.43 0.16 – 282 – – – –
Piskunov et al. 2008 0.40 0.16 – 282 – 41* – –
Piskunov et al. 2007 0.40 0.16 – 282 – 22 – –
Kharchenko et al. 2005 0.40 0.16 – 282 – – – –
Kharchenko et al. 2003 0.48 0.46 – – – – – –
Dias et al. 2002 0.48 0.19 – 251 – – – –

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

Visualization
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Stock 12 UCC
Stock 12 HUNT23
Stock 12 CANTAT20
Galactocentric position diagram