Collinder 258

(Collinder 257; VDBH 133; vdB-Hagen 133; Harvard 5; Har5; OCL 880; vdBergh-Hagen 133; ESO 131 05; HD 108353; MWSC 2033; MWSC 2027; FoF 2240)

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0.90 UTI
0.76
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 119
Stellar density (N50/rad) 20.5 [N/pc2]
C3 classification AB
  • CN 0.76 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 258 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, above 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 very well-studied in the literature.

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 64 along with CWNU_252.

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P203, along with CWNU_252.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Ahumada & Lapasset (2007)
= Collinder 258. The apparent cluster diameter was taken from (1971VeBon..83...19S). Star 2=HD 108295 has a spectrum B2(V)N (1975MSS...C01....0H).

Data
🔍 Search references for Collinder 258 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 186.807 -60.776 0.797 -7.04 -0.256 -28.922
Li et al. 2025 186.798 -60.767 0.764 -7.051 -0.288 –
Almeida et al. 2025 186.77 -60.76 – – – –
Hunt & Reffert 2024 186.789 -60.769 0.795 -7.02 -0.249 -30.848
Cavallo et al. 2024 186.786 -60.771 0.8 – – –
Hunt & Reffert 2023 186.789 -60.769 0.795 -7.02 -0.249 -30.848
Almeida et al. 2023 186.735 -60.761 – – – –
Cordoni et al. 2023 186.77 -60.76 0.765 -7.065 -0.263 –
He et al. 2022 186.766 -60.769 0.801 -7.026 -0.254 –
Tarricq et al. 2022 186.82 -60.767 0.797 -7.031 -0.263 –
Jaehnig et al. 2021 186.805 -60.776 0.798 -7.031 -0.287 –
Rain et al. 2021 186.817 -60.77 0.764 -7.027 -0.332 –
Dias et al. 2021 186.77 -60.76 0.765 -7.065 -0.263 –
Cantat-Gaudin et al. 2020 186.798 -60.767 0.764 -7.051 -0.288 –
Cantat-Gaudin & Anders 2020 186.798 -60.767 0.764 -7.051 -0.288 –
Liu & Pang 2019 186.759 -60.767 0.759 -7.017 -0.274 –
Bossini et al. 2019 186.808 -60.769 – – – –
Soubiran et al. 2018 186.798 -60.767 – – – -28.0
Bica et al. 2019 186.809 -60.773 – – – –
Cantat-Gaudin et al. 2018 186.798 -60.767 0.764 -7.051 -0.288 –
Dias et al. 2018 – – – -6.12 -0.26 –
Dib et al. 2018 186.81 -60.775 – – – –
Loktin & Popova 2017 186.81 -60.779 – -13.683 -7.13 14.9
Sampedro et al. 2017 186.817 -60.779 -2.45 -1.44 – –
Netopil et al. 2016 186.817 -60.778 – – – –
Dias et al. 2014 186.192 -60.887 – -4.35 -1.17 –
Gozha et al. 2012 186.817 -60.779 – – – –
Piskunov et al. 2008 186.79 -60.762 – – – –
Ahumada & Lapasset 2007 186.8 -60.767 – – – –
van den Bergh 2006 186.817 -60.78 – – – –
Kharchenko et al. 2005 186.79 -60.77 – -7.81 -0.73 –
Kharchenko et al. 2003 186.79 -60.77 – -7.29 -0.55 –
Dias et al. 2002 186.817 -60.779 – -2.94 -1.94 14.9
Dambis 1999 186.817 -60.778 – – – –
Lynga 1987 186.77 -60.761 – – – –
van den Bergh & Hagen 1975 186.1 -60.5 – – – –

💡 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– 1.22 0.53 0.46 110 0.110 405 0.59 0
Liu et al. 2025 1.41 0.19 – 209 – – – –
Li et al. 2025 1.19 0.60 – 192 0.149 – – –
Almeida et al. 2025 1.19 0.75 – 139 – 402 – –
Hunt & Reffert 2024 – – – – – 471(1) – –
Cavallo et al. 2024 1.44 0.82 – 138 0.470 – – –
Hunt & Reffert 2023 1.18 0.62 0.46 160 – – – –
Almeida et al. 2023 1.21 0.79 – 147 -0.039 405(1) 0.53 –
Cordoni et al. 2023 1.19 0.75 – 139 0.150 1032 0.65 0(1)
He et al. 2022 – 0.85 – 112 – – – –
Tarricq et al. 2022 1.23 – – 81 – – – –
Jaehnig et al. 2021 1.25(1) – – – – – – –
Rain et al. 2021 1.26 0.50 – 107 – – – 0
Dias et al. 2021 1.19 0.75 – 139 0.150 – – –
Cantat-Gaudin et al. 2020 1.28 0.53 – 98 – – – –
Kounkel et al. 2020 1.29 0.82 – 100 – – – –
Cantat-Gaudin & Anders 2020 1.26 – – – – – – –
Liu & Pang 2019 – – – 93 0.250 – – –
Bossini et al. 2019 1.25 0.67 – 67 -0.045 – – –
Soubiran et al. 2018 1.26 – – – – – – –
Cantat-Gaudin et al. 2018 1.26 – – – – – – –
Dib et al. 2018 1.28 – – 224 – – – –
Loktin & Popova 2017 1.22 0.51 – 108 – – – –
Netopil et al. 2016 7.50 – – 120 – – – –
Gozha et al. 2012 1.18 – – 108 -0.070 229 – –
Paunzen et al. 2010 – – – – -0.070 – – –
Piskunov et al. 2008 1.20 0.50 – 112 – – – –
Ahumada & Lapasset 2007 – 0.50 – 107 – – – 1
van den Bergh 2006 1.18 0.50 – 107 – – – –
Kharchenko et al. 2005 1.20 0.50 – 112 – – – –
Kharchenko et al. 2003 1.18 0.50 – – – – – –
Dias et al. 2002 1.18 0.50 – 108 0.070 – – –
Dambis 1999 0.86 0.53 – 32 – – – –
Lynga 1987 – – – 40 – – – –

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

Visualization
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Collinder 258 UCC
Collinder 258 HUNT23
Collinder 258 CANTAT20
Galactocentric position diagram