Pismis 6

(NGC 2645; FSR 1436; SAI 92; MWSC 1520)

Click to load Aladin Lite
0.96 UTI
0.78
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 191
Stellar density (N50/rad) 26.6 [N/pc2]
C3 classification AA
  • CN 0.78 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¸
Pismis 6 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

Note: This object shares a significant percentage of members with 4 later reported entries. See table with shared members information.

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Pismis 6 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 129.826 -46.253 0.543 -5.875 5.108 17.727
Li et al. 2025 129.774 -46.235 0.523 -5.887 5.071 –
Almeida et al. 2025 129.781 -46.232 – – – –
Hunt & Reffert 2024 129.892 -46.29 0.546 -5.87 5.126 17.353
Celli et al. 2024 129.774 -46.235 – – – –
Cavallo et al. 2024 129.857 -46.254 0.546 – – –
Hunt & Reffert 2023 129.892 -46.29 0.546 -5.87 5.126 17.353
Almeida et al. 2023 129.788 -46.233 – – – –
Just et al. 2023 129.76 -46.232 – – – –
Jaehnig et al. 2021 129.826 -46.258 0.553 -5.898 5.076 –
Rain et al. 2021 129.774 -46.235 0.523 -5.887 5.071 –
Dias et al. 2021 129.781 -46.232 0.523 -5.878 5.081 –
Cantat-Gaudin et al. 2020 129.774 -46.235 0.523 -5.887 5.071 –
Cantat-Gaudin & Anders 2020 129.774 -46.235 0.523 -5.887 5.071 –
Bossini et al. 2019 129.774 -46.235 – – – –
Cantat-Gaudin et al. 2018 129.774 -46.235 0.523 -5.887 5.071 –
Loktin & Popova 2017 129.765 -46.233 – -3.06 2.53 16.8
Kharchenko et al. 2016 129.76 -46.232 – – – –
Dias et al. 2014 129.762 -46.233 – -3.06 2.53 –
Kharchenko et al. 2013 129.765 -46.235 – -6.35 7.16 16.8
Gozha et al. 2012 129.762 -46.233 – – – –
Glushkova et al. 2010 129.894 -46.298 – – – –
Piskunov et al. 2008 129.755 -46.229 – – – –
Kharchenko et al. 2007 129.76 -46.23 – 0.15 – 16.76
Froebrich et al. 2007 129.912 -46.313 – – – –
van den Bergh 2006 129.767 -46.227 – – – –
Kharchenko et al. 2005 129.76 -46.23 – -7.05 6.48 16.76
Chen et al. 2003 129.783 -46.239 – -4.59 6.15 20.8
Dias et al. 2002 129.762 -46.233 – -3.06 2.53 22.16
Dambis 1999 129.762 -46.233 – – – –

💡 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– 1.67 1.21 1.35 26 0.000 320 0.75 0.0
Li et al. 2025 1.47 1.37 – 19 -0.346 – – –
Almeida et al. 2025 1.74 1.40 – 19 – 293 – –
Hunt & Reffert 2024 – – – – – 493(1) – –
Celli et al. 2024 – – – 26 – 196 – –
Cavallo et al. 2024 1.59 1.54 – 28 -0.430 – – –
Hunt & Reffert 2023 1.71 1.17 1.35 40 – – – –
Almeida et al. 2023 1.71 1.44 – 21 0.001 348(1) 0.75 –
Just et al. 2023 – – – 38 – 238 – –
Jaehnig et al. 2021 1.80(1) – – – – – – –
Rain et al. 2021 1.81 1.27 – 26 – – – 0
Dias et al. 2021 1.74 1.40 – 19 0.126 – – –
Cantat-Gaudin et al. 2020 1.76 1.00 – 26 – – – –
Cantat-Gaudin & Anders 2020 1.81 – – – – – – –
Bossini et al. 2019 1.82 1.29 – 27 0.000 – – –
Cantat-Gaudin et al. 2018 1.81 – – – – – – –
Loktin & Popova 2017 1.61 1.21 – 19 – – – –
Kharchenko et al. 2016 1.67 1.18 – 38 – – – –
Kharchenko et al. 2013 1.67 1.18 – 38 – – – –
Gozha et al. 2012 1.67 – – 19 – 646 – –
Glushkova et al. 2010 1.58 1.21 – 100 – – – –
Piskunov et al. 2008 1.67 1.18 – 38 – – – –
van den Bergh 2006 1.67 1.18 – 19 – – – –
Kharchenko et al. 2005 1.67 1.18 – 38 – – – –
Chen et al. 2003 1.67 – – 10 – – – –
Dias et al. 2002 1.67 1.18 – 19 – – – –
Dambis 1999 1.72 1.38 – 16 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
FoF 58 53.9 129.9 -46.29 0.54 -5.83 5.09 -1.51 0.14
OC 0481 19.9 129.65 -46.22 0.54 -5.81 5.15 -9.58 0.19
CWWDL 13332 8.4 129.66 -46.26 0.54 -5.78 5.13 -9.58 0.01
OC 0482 1.6 130.27 -46.41 0.56 -5.79 5.1 – 0.13

💡 Note: The % column shows the percentage of members that Pismis 6 shares with each listed object.

Visualization
ℹī¸
Pismis 6 UCC
Pismis 6 HUNT23
Pismis 6 CANTAT20
Galactocentric position diagram