Collinder 272

(MWSC 2128; OCL 904; ESO 132 09; FoF 428)

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0.87 UTI
0.86
CN
1.0
Cdens
1.0
CC3
1.0
Clit
0.89
Cdup
N50 (P>50% members) 395
Stellar density (N50/rad) 28.4 [N/pc2]
C3 classification AA
  • CN 0.86 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 0.89 Very likely unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Collinder 272 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, young cluster, but with a large variance across recent sources for the absorption, age, and mass parameters (see Parameters). It is very well-studied in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 128 along with CWNU_2888, and of multiple system 40 along with CWNU_2888 and UBC_292.

Palma et al. (2025)
Part of multiple system G22, along with HSC_2582 and HSC_2602.

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

Piecka & Paunzen (2021)
Belongs to cluster aggregate 'Agg22' along with NGC 5168.

Cavallo et al. (2024)
Gold sample.

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

Data
πŸ” Search references for Collinder 272 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 202.604 -61.325 0.445 -3.477 -1.796 -17.542
Liu et al. 2025 202.57 -61.33 0.45 -3.48 -1.77 -43.04
Li et al. 2025 202.586 -61.319 0.414 -3.441 -1.798 –
Wei et al. 2025 202.668 -61.338 0.447 -3.448 -1.72 –
Almeida et al. 2025 202.577 -61.321 – – – –
Hunt & Reffert 2024 202.575 -61.33 0.451 -3.479 -1.77 -43.042
Cavallo et al. 2024 202.579 -61.317 0.451 – – –
Hunt & Reffert 2023 202.575 -61.33 0.451 -3.479 -1.77 -43.042
Almeida et al. 2023 202.585 -61.319 – – – –
Just et al. 2023 202.572 -61.332 – – – –
Jaehnig et al. 2021 202.554 -61.3 0.451 -3.451 -1.821 –
Rain et al. 2021 202.586 -61.319 0.414 -3.441 -1.798 –
Dias et al. 2021 202.577 -61.321 0.425 -3.449 -1.804 -5.821
Cantat-Gaudin et al. 2020 202.586 -61.319 0.414 -3.441 -1.798 –
SΓ‘nchez et al. 2020 202.608 -61.317 – -3.479 -1.77 –
Cantat-Gaudin & Anders 2020 202.586 -61.319 0.414 -3.441 -1.798 –
Liu & Pang 2019 202.596 -61.33 0.44 -3.424 -1.767 –
Dias et al. 2019 202.608 -61.317 0.42 -3.462 -1.861 -48.4
Soubiran et al. 2018 202.586 -61.319 – – – -4.59
Bica et al. 2019 202.623 -61.327 – – – –
Cantat-Gaudin et al. 2018 202.586 -61.319 0.414 -3.441 -1.798 –
Loktin & Popova 2017 202.605 -61.317 – -4.5 -2.0 -32.2
Kharchenko et al. 2016 202.572 -61.332 – – – –
Dias et al. 2014 202.608 -61.317 – -5.17 -2.59 –
Kharchenko et al. 2013 202.582 -61.335 – -4.5 -2.0 -32.2
Morales et al. 2013 202.608 -61.317 – – – –
Gozha et al. 2012 202.608 -61.317 – – – –
Bukowiecki et al. 2011 202.592 -61.319 – – – –
Piskunov et al. 2008 202.599 -61.319 – – – –
van den Bergh 2006 202.6 -61.317 – – – –
Kharchenko et al. 2005 202.6 -61.32 – -3.81 -2.39 –
Kharchenko et al. 2003 202.63 -61.3 – -3.83 -1.76 –
Dias et al. 2002 202.608 -61.317 – -4.5 -2.0 -32.2

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– 2.06 1.46 1.03 22 -0.049 1322 0.515 0.0
Liu et al. 2025 3.80 0.52 – 35 – – – –
Li et al. 2025 1.84 1.40 – 31 -0.149 – – –
Wei et al. 2025 2.33 1.50 – 82 0.000 3498 0.46 –
Almeida et al. 2025 1.89 1.50 – 25 – 1322 – –
Hunt & Reffert 2024 – – – – – 1534(1) – –
Cavallo et al. 2024 1.74 1.43 – 95 -0.110 – – –
Hunt & Reffert 2023 2.07 1.36 1.03 46 – – – –
Almeida et al. 2023 2.04 1.54 – 30 0.130 1316(1) 0.57 –
Just et al. 2023 – – – 10 – 467 – –
Jaehnig et al. 2021 2.21(1) – – – – – – –
Rain et al. 2021 2.26 1.86 – 10 – – – 0
Dias et al. 2021 1.89 1.50 – 25 -0.049 – – –
Cantat-Gaudin et al. 2020 2.24 1.29 – 46 – – – –
Cantat-Gaudin & Anders 2020 2.26 – – – – – – –
Liu & Pang 2019 – – – 117 0.250 – – –
Dias et al. 2019 1.65 1.58 – 23 -1.623 – – –
Soubiran et al. 2018 2.26 – – – – – – –
Cantat-Gaudin et al. 2018 2.26 – – – – – – –
Loktin & Popova 2017 2.04 1.46 – 17 – – – –
Kharchenko et al. 2016 2.10 1.87 – 10 – – – –
Kharchenko et al. 2013 2.10 1.87 – 10 – – – –
Morales et al. 2013 2.05 – – 17 – – – –
Bukowiecki et al. 2012 – – – – – 637 – –
Gozha et al. 2012 2.04 – – 17 -0.400 1445 – –
Bukowiecki et al. 2011 2.52(1) 1.33 – 22 – – – –
Piskunov et al. 2008 2.04 1.46 – 10 – – – –
van den Bergh 2006 2.04 1.46 – 17 – – – –
Kharchenko et al. 2005 2.04 1.46 – 10 – – – –
Kharchenko et al. 2003 2.04 1.24 – – – – – –
Dias et al. 2002 2.10 1.87 – 10 0.060 – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Hogg 16 10.9 202.32 -61.24 0.45 -3.49 -1.65 -75.22 0.81

πŸ’‘ Note: The % column shows the percentage of members that Collinder 272 shares with each listed object.

Visualization
ℹ️
Collinder 272 UCC
Collinder 272 HUNT23
Collinder 272 CANTAT20
Galactocentric position diagram