NGC 433

(MWSC 110)

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0.91 UTI
0.82
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 296
Radius (P>50% members) 4.2 [arcmin]
  • CN 0.82 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 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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NGC 433 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate 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 age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.
Relatively close Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for NGC 433 in: SciX Simbad
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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 18.801 60.135 0.47 -1.448 -0.79 -23.02
Almeida et al. 2025 18.793 60.132 – – – –
Zhang et al. 2024 18.79 60.132 – – – –
Hunt & Reffert 2024 18.79 60.132 0.468 -1.447 -0.814 -28.091
Cavallo et al. 2024 18.779 60.127 0.474 – – –
Hunt & Reffert 2023 18.79 60.132 0.468 -1.447 -0.814 -28.091
Almeida et al. 2023 18.788 60.132 – – – –
Just et al. 2023 18.791 60.12 – – – –
Jaehnig et al. 2021 18.791 60.128 0.497 -1.441 -0.709 –
Rain et al. 2021 18.798 60.133 0.463 -1.422 -0.72 –
Dias et al. 2021 18.793 60.132 0.473 -1.44 -0.732 –
Cantat-Gaudin et al. 2020 18.798 60.133 0.463 -1.422 -0.72 –
Cantat-Gaudin & Anders 2020 18.798 60.133 0.463 -1.422 -0.72 –
Soubiran et al. 2018 18.798 60.133 – – – -34.94
Cantat-Gaudin et al. 2018 18.798 60.133 0.463 -1.422 -0.72 –
Loktin & Popova 2017 18.795 60.127 – -2.264 -0.731 -36.9
Kharchenko et al. 2016 18.791 60.12 – – – –
Kharchenko et al. 2013 18.801 60.123 – -2.32 -1.6 -36.9
Gozha et al. 2012 18.796 60.127 – – – –
Kharchenko et al. 2012 18.801 60.123 – -2.32 -1.6 -36.91
Piskunov et al. 2008 18.78 60.126 – – – –
van den Bergh 2006 18.8 60.133 – – – –
Kharchenko et al. 2005 18.79 60.13 – -5.7 -0.37 –
Kharchenko et al. 2003 18.81 60.14 – -3.84 -0.62 –
Dias et al. 2002 18.796 60.127 – -2.32 -1.6 -36.91

💡 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] Bfr BSS
Almeida et al. 2025 1.80 2.00 – 38 – 546 – –
Zhang et al. 2024 – – – – -0.461* – – –
Hunt & Reffert 2024 – – – – – 1023* – –
Cavallo et al. 2024 2.12 2.27 – 174 0.110 – – –
Hunt & Reffert 2023 1.95 1.89 2.63 148 – – – –
Almeida et al. 2023 1.82 2.24 – 72 -0.104 459* 0.51 –
Just et al. 2023 – – – 65 – 52 – –
Jaehnig et al. 2021 2.01* – – – – – – –
Rain et al. 2021 2.03 2.67 – 32 – – – 0
Dias et al. 2021 1.80 2.00 – 38 0.048 – – –
Cantat-Gaudin et al. 2020 2.05 1.80 – 138 – – – –
Cantat-Gaudin & Anders 2020 2.03 – – – – – – –
Soubiran et al. 2018 2.03 – – – – – – –
Cantat-Gaudin et al. 2018 2.03 – – – – – – –
Loktin & Popova 2017 1.92 2.49 – 11 – – – –
Kharchenko et al. 2016 1.65 1.86 – 65 – – – –
Kharchenko et al. 2013 1.65 1.86 – 65 – – – –
Gozha et al. 2012 2.32 – – 32 -0.680 479 – –
Kharchenko et al. 2012 1.65 1.86 – 65 – – – –
Piskunov et al. 2008 2.00 1.71 – 45 – – – –
van den Bergh 2006 2.32 2.67 – 32 – – – –
Kharchenko et al. 2005 2.00 1.71 – 45 – – – –
Kharchenko et al. 2003 2.32 2.23 – – – – – –
Dias et al. 2002 2.32 2.67 – 32 – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization
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NGC 433 UCC
NGC 433 HUNT23
NGC 433 CANTAT20
Galactocentric position diagram