Collinder 49

(NGC 1545; MWSC 369; OCL 399; FoF 2322)

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0.92 UTI
0.84
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 336
Stellar density (N50/rad) 21.0 [N/pc2]
C3 classification AB
  • CN 0.84 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Collinder 49 is a rich, very dense object of high C3 quality. Its parallax locates it at a 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, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Collinder 49 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 65.202 50.208 1.395 -2.019 -0.138 -14.285
Li et al. 2025 65.202 50.221 1.367 -1.957 -0.082 –
Almeida et al. 2025 65.176 50.228 – – – –
Alfonso et al. 2024 65.202 50.205 1.368 -2.033 -0.106 –
Zhang et al. 2024 65.277 50.248 – – – –
Hunt & Reffert 2024 65.277 50.248 1.382 -2.022 -0.135 -13.295
Cavallo et al. 2024 65.203 50.215 1.393 – – –
Hunt & Reffert 2023 65.277 50.248 1.382 -2.022 -0.135 -13.295
Almeida et al. 2023 65.188 50.26 – – – –
Just et al. 2023 65.284 50.252 – – – –
He et al. 2022 65.224 50.246 1.403 -2.042 -0.097 –
Tarricq et al. 2022 65.227 50.205 1.407 -2.033 -0.109 –
Jaehnig et al. 2021 65.281 50.253 1.385 -1.945 -0.108 –
Rain et al. 2021 65.202 50.221 1.367 -1.957 -0.082 –
Dias et al. 2021 65.176 50.228 1.361 -1.965 -0.088 -11.386
Cantat-Gaudin et al. 2020 65.202 50.221 1.367 -1.957 -0.082 –
Cantat-Gaudin & Anders 2020 65.202 50.221 1.367 -1.957 -0.082 –
Liu & Pang 2019 65.267 50.288 1.348 -1.975 -0.093 –
Bossini et al. 2019 65.202 50.221 – – – –
Soubiran et al. 2018 65.202 50.221 – – – -11.36
Bica et al. 2019 65.212 50.249 – – – –
Cantat-Gaudin et al. 2018 65.202 50.221 1.367 -1.957 -0.082 –
Loktin & Popova 2017 65.235 50.254 – -1.174 1.228 -10.8
Kharchenko et al. 2016 65.284 50.252 – – – –
Dias et al. 2014 65.237 50.253 – -0.22 -1.52 –
Kharchenko et al. 2013 65.295 50.252 – -0.44 1.46 -10.8
Gozha et al. 2012 65.238 50.253 – – – –
Kharchenko et al. 2012 65.295 50.252 – -0.44 1.46 -10.84
Piskunov et al. 2008 65.234 50.249 – – – –
Kharchenko et al. 2007 65.23 50.25 – 0.21 – -10.84
Piskunov et al. 2007 65.234 50.249 – – – –
van den Bergh 2006 65.225 50.25 – – – –
Kharchenko et al. 2005 65.23 50.25 – -1.63 -1.0 -12.7
Kharchenko et al. 2003 65.25 50.28 – -0.9 -0.53 –
Chen et al. 2003 65.267 50.242 – 0.45 -3.12 -12.0
Dias et al. 2002 65.237 50.253 – -0.22 -1.52 -12.42

💡 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– 0.71 0.94 1.63 141 -0.060 88 0.56 0.0
Li et al. 2025 0.70 0.91 – 229 0.034 – – –
Almeida et al. 2025 0.70 1.09 – 208 – 352 – –
Alfonso et al. 2024 0.73 0.77 – 138 0.076 – – –
Zhang et al. 2024 – – – – -0.121(1) – – –
Hunt & Reffert 2024 – – – – – 448(1) – –
Cavallo et al. 2024 0.73 1.12 – 138 0.370 – – –
Hunt & Reffert 2023 0.68 0.99 1.63 99 – – – –
Almeida et al. 2023 0.69 1.24 – 134 -0.030 287(1) 0.56 –
Just et al. 2023 – – – 646 – 7 – –
He et al. 2022 – 1.30 – 79 – – – –
Tarricq et al. 2022 0.72 – – 120 – – – –
Jaehnig et al. 2021 0.72(1) – – – – – – –
Rain et al. 2021 0.72 0.90 – 102 – – – 0
Dias et al. 2021 0.70 1.09 – 208 0.075 – – –
Cantat-Gaudin et al. 2020 0.73 0.77 – 110 – – – –
Cantat-Gaudin & Anders 2020 0.72 – – – – – – –
Liu & Pang 2019 – – – 66 0.250 – – –
Bossini et al. 2019 0.70 0.92 – 104 -0.060 – – –
Soubiran et al. 2018 0.72 – – – – – – –
Cantat-Gaudin et al. 2018 0.72 – – – – – – –
Loktin & Popova 2017 0.73 0.95 – 276 – – – –
Kharchenko et al. 2016 0.86 1.10 – 646 – – – –
Kharchenko et al. 2013 0.86 1.10 – 646 -0.060 – – –
Gozha et al. 2012 0.71 – – 281 -0.130 58 – –
Kharchenko et al. 2012 0.86 1.10 – 646 -0.060 – – –
Piskunov et al. 2008 0.71 0.93 – 141 – 88(1) – –
Piskunov et al. 2007 0.71 0.93 – 141 – 14 – –
van den Bergh 2006 0.71 0.93 – 282 – – – –
Kharchenko et al. 2005 0.71 0.93 – 141 – – – –
Kharchenko et al. 2003 0.71 0.93 – – – – – –
Chen et al. 2003 0.71 0.94 – 280 -0.060(1) – – –
Dias et al. 2002 0.71 0.94 – 281 -0.130 – – –

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

Visualization
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Collinder 49 UCC
Collinder 49 HUNT23
Collinder 49 CANTAT20
Galactocentric position diagram