Collinder 394

(MWSC 3011; OCL 42; ESO 592 03; FoF 2272)

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1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 628
Stellar density (N50/rad) 31.3 [N/pc2]
C3 classification AA
  • CN 1.0 Very rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very 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 394 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is very well-studied in the literature.

Note: This object shares a large percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Palma et al. (2025)
Classified as genetic pair P192, along with NGC_6716.

Cavallo et al. (2024)
Gold sample.

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

Data
🔍 Search references for Collinder 394 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 283.191 -20.146 1.383 -1.483 -5.938 6.621
Li et al. 2025 283.092 -20.229 1.388 -1.459 -5.882 –
Almeida et al. 2025 283.06 -20.224 – – – –
Alfonso et al. 2024 283.179 -20.165 1.337 -1.483 -5.94 –
Hunt & Reffert 2024 283.058 -20.272 1.336 -1.453 -5.874 8.744
Cavallo et al. 2024 282.98 -20.249 1.346 – – –
Hunt & Reffert 2023 283.058 -20.272 1.336 -1.453 -5.874 8.744
Almeida et al. 2023 283.078 -20.214 – – – –
Cordoni et al. 2023 283.06 -20.224 1.389 -1.465 -5.882 –
Just et al. 2023 283.072 -20.201 – – – –
He et al. 2022 283.262 -20.105 1.382 -1.482 -5.958 –
Tarricq et al. 2022 283.06 -20.235 1.372 -1.485 -5.922 –
Jaehnig et al. 2021 283.109 -20.243 1.405 -1.496 -5.861 –
Rain et al. 2021 283.092 -20.229 1.388 -1.459 -5.882 –
Dias et al. 2021 283.06 -20.224 1.389 -1.465 -5.882 21.626
Cantat-Gaudin et al. 2020 283.092 -20.229 1.388 -1.459 -5.882 –
Cantat-Gaudin & Anders 2020 283.092 -20.229 1.388 -1.459 -5.882 –
Liu & Pang 2019 283.116 -20.219 1.39 -1.493 -5.875 –
Bossini et al. 2019 283.092 -20.229 – – – –
Soubiran et al. 2018 283.092 -20.229 – – – 13.86
Bica et al. 2019 283.051 -20.221 – – – –
Cantat-Gaudin et al. 2018 283.092 -20.229 1.388 -1.459 -5.882 –
Loktin & Popova 2017 283.065 -20.203 – -0.907 -6.022 -1.8
Kharchenko et al. 2016 283.072 -20.201 – – – –
Dias et al. 2014 283.067 -20.203 – 1.96 -3.78 –
Kharchenko et al. 2013 283.08 -20.2 – -3.0 -6.35 -1.8
Gozha et al. 2012 283.067 -20.203 – – – –
Piskunov et al. 2008 283.098 -20.199 – – – –
Kharchenko et al. 2007 283.06 -20.2 – 0.43 – -1.85
Piskunov et al. 2007 283.098 -20.199 – – – –
van den Bergh 2006 283.1 -20.2 – – – –
Kharchenko et al. 2005 283.11 -20.2 – -3.03 -6.31 -1.86
Kharchenko et al. 2003 283.09 -20.3 – -3.28 -7.37 –
Chen et al. 2003 282.757 -20.264 – -4.8 -4.78 6.0
Dias et al. 2002 283.067 -20.203 – 1.96 -3.78 6.0
Dambis 1999 283.067 -20.203 – – – –

💡 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– 0.7 0.74 0.97 76 0.152 610 0.375 0.0
Li et al. 2025 0.72 0.72 – 108 0.158 – – –
Almeida et al. 2025 0.69 0.90 – 86 – 402 – –
Alfonso et al. 2024 0.70 0.54 – 185 0.151 – – –
Hunt & Reffert 2024 – – – – – 1984(1) – –
Cavallo et al. 2024 0.74 0.94 – 102 0.230 – – –
Hunt & Reffert 2023 0.68 0.62 0.97 84 – – – –
Almeida et al. 2023 0.70 0.89 – 121 0.055 545(1) 0.51 –
Cordoni et al. 2023 0.69 0.90 – 86 0.152 1340 0.24 0.00
Just et al. 2023 – – – 72 – 62 – –
He et al. 2022 – 0.85 – 71 – – – –
Tarricq et al. 2022 0.69 – – 93 – – – –
Jaehnig et al. 2021 0.71(1) – – – – – – –
Rain et al. 2021 0.71 0.68 – 91 – – – 0
Dias et al. 2021 0.69 0.90 – 86 0.152 – – –
Cantat-Gaudin et al. 2020 0.70 0.54 – 91 – – – –
Cantat-Gaudin & Anders 2020 0.71 – – – – – – –
Liu & Pang 2019 – – – 50 0.250 – – –
Bossini et al. 2019 0.70 0.68 – 93 0.000 – – –
Soubiran et al. 2018 0.71 – – – – – – –
Cantat-Gaudin et al. 2018 0.71 – – – – – – –
Loktin & Popova 2017 0.71 0.73 – 64 – – – –
Kharchenko et al. 2016 0.67 0.74 – 72 – – – –
Kharchenko et al. 2013 0.67 0.74 – 72 – – – –
Gozha et al. 2012 0.69 – – 64 – 676 – –
Piskunov et al. 2008 0.70 0.74 – 72 – 1191(1) – –
Piskunov et al. 2007 0.70 0.74 – 72 – 459 – –
van den Bergh 2006 0.69 0.74 – 63 – – – –
Kharchenko et al. 2005 0.70 0.74 – 72 – – – –
Kharchenko et al. 2003 0.69 0.74 – – – – – –
Chen et al. 2003 0.69 – – 60 – – – –
Dias et al. 2002 0.69 0.73 – 64 – – – –
Dambis 1999 0.60 0.78 – 79 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Collinder 393 86.5 283.37 -20.04 1.39 -1.49 -5.97 6.37 1.0
CWNU 1185 4.0 283.46 -20.05 1.48 -1.55 -6.0 -0.34 0.0

💡 Note: The % column shows the percentage of members that Collinder 394 shares with each listed object.

Visualization
ℹī¸
Collinder 394 UCC
Collinder 394 HUNT23
Collinder 394 CANTAT20
Galactocentric position diagram