NGC 6405

(MWSC 2661; FoF 2415; OCSN 239)

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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) 761
Stellar density (N50/rad) 202.6 [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¸
NGC 6405 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near 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 absorption, 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 NGC 6405 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 265.091 -32.234 2.176 -1.355 -5.862 -10.491
Li et al. 2025 265.069 -32.242 2.172 -1.306 -5.847 –
Wei et al. 2025 265.083 -32.245 2.183 -1.381 -5.875 –
Almeida et al. 2025 265.104 -32.24 – – – –
Alfonso et al. 2024 265.095 -32.23 2.14 -1.362 -5.866 –
Hunt & Reffert 2024 265.067 -32.228 2.177 -1.368 -5.847 -10.527
Cavallo et al. 2024 265.075 -32.224 2.174 – – –
Hunt & Reffert 2023 265.067 -32.228 2.177 -1.368 -5.847 -10.527
Qin et al. 2023 265.04 -32.23 2.17 -1.37 -5.87 -10.51
Just et al. 2023 265.071 -32.215 – – – –
He et al. 2022 265.069 -32.249 2.177 -1.354 -5.858 –
Jaehnig et al. 2021 265.12 -32.238 2.196 -1.328 -5.815 –
Rain et al. 2021 265.069 -32.242 2.172 -1.306 -5.847 –
Dias et al. 2021 265.104 -32.24 2.167 -1.312 -5.839 -8.71
Cantat-Gaudin et al. 2020 265.069 -32.242 2.172 -1.306 -5.847 –
Cantat-Gaudin & Anders 2020 265.069 -32.242 2.172 -1.306 -5.847 –
Liu & Pang 2019 265.089 -32.257 2.16 -1.339 -5.846 –
Soubiran et al. 2018 265.069 -32.242 – – – -9.47
Cantat-Gaudin et al. 2018 265.069 -32.242 2.172 -1.306 -5.847 –
Loktin & Popova 2017 265.08 -32.254 – -0.353 -4.685 -9.8
Kharchenko et al. 2016 265.071 -32.215 – – – –
Dias et al. 2014 265.083 -32.253 – -1.05 -3.08 –
Kharchenko et al. 2013 265.08 -32.215 – -0.76 -5.82 -9.8
Gozha et al. 2012 265.083 -32.253 – – – –
Piskunov et al. 2008 265.072 -32.2 – – – –
Kharchenko et al. 2007 265.08 -32.25 – 0.4 – -11.5
Piskunov et al. 2007 265.072 -32.2 – – – –
van den Bergh 2006 265.075 -32.2 – – – –
Kharchenko et al. 2005 265.08 -32.2 – -1.28 -5.72 -11.5
Kharchenko et al. 2003 265.06 -32.22 – 0.22 -3.39 –
Chen et al. 2003 265.051 -32.219 – -1.57 -6.61 10.4
Dias et al. 2002 265.083 -32.253 – -1.05 -3.08 -7.02
Dambis 1999 265.083 -32.253 – – – –

💡 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– 0.46 0.45 0.84 80 0.101 110 0.41 0.0
Li et al. 2025 0.45 0.55 – 61 0.143 – – –
Wei et al. 2025 0.57 0.67 – 54 0.250 1025 0.41 –
Almeida et al. 2025 0.45 0.62 – 78 – 934 – –
Alfonso et al. 2024 0.46 0.49 – 56 0.141 – – –
Hunt & Reffert 2024 – – – – – 1328(1) – –
Cavallo et al. 2024 0.48 1.55 – 23 -0.420 – – –
Hunt & Reffert 2023 0.44 0.38 0.84 52 – – – –
Qin et al. 2023 0.65 0.96 – 71 – – – –
Just et al. 2023 – – – 108 – 108 – –
He et al. 2022 – 0.65 – 40 – – – –
Jaehnig et al. 2021 0.46(1) – – – – – – –
Rain et al. 2021 0.45 0.43 – 93 – – – 0
Dias et al. 2021 0.45 0.62 – 78 0.142 – – –
Cantat-Gaudin et al. 2020 0.46 0.49 – 35 – – – –
Cantat-Gaudin & Anders 2020 0.45 – – – – – – –
Liu & Pang 2019 – – – 48 0.000 – – –
Soubiran et al. 2018 0.45 – – – – – – –
Cantat-Gaudin et al. 2018 0.45 – – – – – – –
Loktin & Popova 2017 0.49 0.45 – 94 – – – –
Kharchenko et al. 2016 0.36 0.43 – 108 – – – –
Kharchenko et al. 2013 0.36 0.43 – 108 0.205 – – –
Gozha et al. 2012 0.49 – – 94 0.060 110 – –
Piskunov et al. 2008 0.49 0.43 – 81 – 70(1) – –
Piskunov et al. 2007 0.49 0.43 – 81 – 34 – –
van den Bergh 2006 0.49 0.43 – 93 – – – –
Kharchenko et al. 2005 0.49 0.43 – 81 – – – –
Kharchenko et al. 2003 0.49 0.43 – – – – – –
Chen et al. 2003 0.49 0.45 – 90 0.060(1) – – –
Dias et al. 2002 0.49 0.45 – 94 0.060 – – –
Dambis 1999 0.46 0.44 – 79 – – – –

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

Visualization
ℹī¸
NGC 6405 UCC
NGC 6405 HUNT23
NGC 6405 CANTAT20
Galactocentric position diagram