Collinder 269

(MWSC 2113; OCL 897; ESO 096 10)

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0.70 UTI
0.76
CN
0.63
Cdens
0.75
CC3
0.68
Clit
1.0
Cdup
Nm (P>50%) 114
Core radius and density 2.1 [pc], 3.2 [pc-2]
C3 classification AB
  • CN 0.76 Rich
  • Cdens 0.63 Moderately dense
  • CC3 0.75 High quality
  • Clit 0.68 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Collinder 269 is a rich, moderately dense object of high C3 quality. Its parallax locates it at a relatively close distance, below 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 metallicity parameter (see Parameters). It is moderately studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 1.00 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 1.00 (50th percentile), true positive (human-assigned).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.0408, e_all=0.1077.

Data
🔍 Search references for Collinder 269 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 200.984 -66.194 0.581 -5.089 -2.444 -29.108
Li et al. 2025 200.992 -66.204 0.568 -5.058 -2.492 –
Hu & Soubiran 2025 200.996 -66.192 – – – –
Almeida et al. 2025 201.022 -66.212 – – – –
Hunt & Reffert 2024 200.964 -66.191 0.575 -5.109 -2.436 -38.354
Cavallo et al. 2024 200.996 -66.192 0.58 – – –
Hunt & Reffert 2023 200.964 -66.191 0.575 -5.109 -2.436 -38.354
Almeida et al. 2023 201.024 -66.203 – – – –
Just et al. 2023 200.952 -66.157 – – – –
Jadhav & Subramaniam 2021 200.992 -66.204 – – – –
Dias et al. 2021 201.022 -66.212 0.572 -5.059 -2.478 –
Cantat-Gaudin et al. 2020 200.992 -66.204 0.568 -5.058 -2.492 –
Cantat-Gaudin & Anders 2020 200.992 -66.204 0.568 -5.058 -2.492 –
Soubiran et al. 2018 200.992 -66.204 – – – -22.3
Bica et al. 2019 200.887 -66.19 – – – –
Cantat-Gaudin et al. 2018 200.992 -66.204 0.568 -5.058 -2.492 –
Dib et al. 2018 200.962 -66.16 – – – –
Sampedro et al. 2017 200.879 -66.183 – -3.38 -3.99 –
Kharchenko et al. 2016 200.952 -66.157 – – – –
Dias et al. 2014 200.879 -66.183 – -3.45 -3.87 –
Kharchenko et al. 2013 200.962 -66.16 – -8.16 -1.75 –
Piskunov et al. 2008 200.859 -66.181 – – – –
Kharchenko et al. 2005 200.88 -66.18 – -7.95 -3.93 –

💡 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– 1.65 0.81 0.28 397 -0.080 354 0.52 0
Li et al. 2025 1.35 0.62 – 918 -0.242 – – –
Hu & Soubiran 2025 – – – – -0.280(5) – – –
Almeida et al. 2025 1.57 0.81 – 444 – 208 – –
Hunt & Reffert 2024 1.62 0.61 0.28 409 – 354(1) – –
Cavallo et al. 2024 1.49 0.76 – 692 -0.080 – – –
Hunt & Reffert 2023 1.62 0.61 0.28 409 – – – –
Almeida et al. 2023 1.62 1.00 – 385 0.013 477(1) 0.52 –
Just et al. 2023 – – – 355 – 676 – –
Jadhav & Subramaniam 2021 1.71 0.78 – 417 – 306 – 0(1)
Dias et al. 2021 1.57 0.81 – 444 0.205 – – –
Cantat-Gaudin et al. 2020 1.71 0.78 – 417 – – – –
Kounkel et al. 2020 1.82 1.03 – 245 – – – –
Cantat-Gaudin & Anders 2020 1.68 – – – – – – –
Soubiran et al. 2018 1.68 – – – – – – –
Cantat-Gaudin et al. 2018 1.68 – – – – – – –
Dib et al. 2018 1.87 – – 355 – – – –
Kharchenko et al. 2016 1.87 1.38 – 355 – – – –
Kharchenko et al. 2013 1.87 1.38 – 355 – – – –
Piskunov et al. 2008 1.30 0.85 – 331 – – – –
Kharchenko et al. 2005 1.30 0.85 – 331 – – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization
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Collinder 269 UCC
Collinder 269 HUNT23
Collinder 269 CANTAT20
Galactocentric position diagram