Stock 3

(MWSC 108; OCL 318)

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0.34 UTI
0.26
CN
0.11
Cdens
0.25
CC3
0.55
Clit
1.0
Cdup
C3 classification CC
Number of members (P>50%) 26
Radius (P>50% members) 6.9 [arcmin]
  • CN 0.26 Poorly populated
  • Cdens 0.11 Very loose
  • CC3 0.25 Low quality
  • Clit 0.55 Moderately 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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Stock 3 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate* distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~3.39 kpc) differs significantly from the median photometric distance (~1.36 kpc).

Relatively close Moderate extinction Near-solar metallicity Young

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

Data
🔍 Search references for Stock 3 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 – 18.049 62.298 0.295 -1.86 -0.372 -61.365
Almeida et al. 2025 18.059 62.319 – – – –
Just et al. 2023 18.027 62.255 – – – –
Dias et al. 2021 18.059 62.319 0.265 -1.895 -0.357 –
Bica et al. 2019 18.0 62.286 – – – –
Kharchenko et al. 2016 18.027 62.255 – – – –
Dias et al. 2014 18.075 62.333 – -1.94 1.54 –
Kharchenko et al. 2013 18.037 62.258 – -0.13 -0.64 -6.0
Kharchenko et al. 2012 18.037 62.258 – -0.13 -0.64 -6.0
Dias et al. 2002 18.075 62.333 – -0.94 1.82 -6.0

💡 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 2.75 2.35 – 17 – 498 – –
Just et al. 2023 – – – 71 – 57 – –
Dias et al. 2021 2.75 2.35 – 17 -0.100 – – –
Kharchenko et al. 2016 1.36 2.19 – 71 – – – –
Kharchenko et al. 2013 1.36 2.19 – 71 – – – –
Kharchenko et al. 2012 1.36 2.19 – 71 – – – –
Dias et al. 2002 1.36 2.19 – 71 – – – –

Visualization
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Stock 3 UCC
Galactocentric position diagram