Collinder 469

(MWSC 2865; OCL 35)

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0.82 UTI
0.61
CN
1.0
Cdens
0.75
CC3
0.87
Clit
1.0
Cdup
Nm (P>50%) 72
Core radius and density 0.8 [pc], 9.9 [pc-2]
C3 classification BA
  • CN 0.61 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.87 Well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Collinder 469 is a moderately populated, very dense object of high 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, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.

Palma et al. (2025)
Classified as optical pair P284, along with HSC_161.

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.22 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.22 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1353, e_all=0.0111.

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Data
πŸ” Search references for Collinder 469 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 274.139 -18.305 0.407 0.085 -1.682 17.371
Almeida et al. 2025 274.138 -18.318 – – – –
Hunt & Reffert 2024 274.142 -18.307 0.397 0.082 -1.694 –
Celli et al. 2024 274.143 -18.309 – – – –
Cavallo et al. 2024 274.139 -18.321 0.399 – – –
Hunt & Reffert 2023 274.142 -18.307 0.397 0.082 -1.694 –
Just et al. 2023 274.119 -18.302 – – – –
Richer et al. 2021 274.14 -18.315 0.39 0.08 -1.657 –
Dias et al. 2021 274.138 -18.318 0.387 0.08 -1.677 –
Cantat-Gaudin et al. 2020 274.143 -18.309 0.399 0.089 -1.679 –
SΓ‘nchez et al. 2020 274.142 -18.312 – -0.061 -1.453 –
Cantat-Gaudin & Anders 2020 274.143 -18.309 0.399 0.089 -1.679 –
Soubiran et al. 2018 274.143 -18.309 – – – 17.84
Bica et al. 2019 274.139 -18.314 – – – –
Cantat-Gaudin et al. 2018 274.143 -18.309 0.399 0.089 -1.679 –
Dias et al. 2018 – – – -0.57 -1.54 –
Dib et al. 2018 274.126 -18.3 – – – –
Loktin & Popova 2017 274.14 -18.313 – 3.218 -1.02 –
Sampedro et al. 2017 274.142 -18.312 – 0.57 0.16 –
Joshi et al. 2016 274.126 -18.3 – – – –
Kharchenko et al. 2016 274.119 -18.302 – – – –
Dias et al. 2014 274.142 -18.312 – 1.09 -1.52 –
Kharchenko et al. 2013 274.126 -18.3 – 1.78 -2.03 –
Morales et al. 2013 274.142 -18.312 – – – –
Bukowiecki et al. 2011 274.142 -18.302 – – – –
van den Bergh 2006 274.1 -18.217 – – – –
Dias et al. 2002 274.142 -18.312 – 1.09 -1.52 –
Lynga 1987 274.109 -18.219 – – – –

πŸ’‘ 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– 1.99 2.07 2.5 71 -0.150 380 – –
Almeida et al. 2025 2.04 1.95 – 274 – 159 – –
Hunt & Reffert 2024 2.27 2.07 2.50 35 – 700(1) – –
Celli et al. 2024 – – – 10 – 380 – –
Cavallo et al. 2024 2.01 2.89 – 23 -0.570 – – –
Hunt & Reffert 2023 2.27 2.07 2.50 35 – – – –
Just et al. 2023 – – – 100 – 90 – –
Richer et al. 2021 – 2.40 – – – – – –
Dias et al. 2021 2.04 1.95 – 274 0.270 – – –
Cantat-Gaudin et al. 2020 2.42 1.96 – 10 – – – –
Kounkel et al. 2020 2.36 2.31 – 138 – – – –
Cantat-Gaudin & Anders 2020 2.34 – – – – – – –
Soubiran et al. 2018 2.34 – – – – – – –
Cantat-Gaudin et al. 2018 2.34 – – – – – – –
Dib et al. 2018 1.28 – – 100 – – – –
Loktin & Popova 2017 1.51 1.39 – 71 – – – –
Joshi et al. 2016 1.28 3.61 – 100 – – – –
Kharchenko et al. 2016 1.28 3.61 – 100 – – – –
Kharchenko et al. 2013 1.28 3.61 – 100 – – – –
Morales et al. 2013 1.48 – – 63 – – – –
Bukowiecki et al. 2012 – – – – – 1028 – –
Bukowiecki et al. 2011 1.48(1) 2.05 – 112 – – – –
van den Bergh 2006 1.48 1.32 – 63 – – – –
Dias et al. 2002 1.48 1.32 – 63 – – – –
Lynga 1987 1.97 2.27 – 20 – – – –

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

Visualization
ℹ️
Collinder 469 UCC
Collinder 469 HUNT23
Collinder 469 CANTAT20
Galactocentric position diagram