NGC 6830

(Melotte 224; Collinder 406; MWSC 3191; OCL 125)

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0.95 UTI
0.82
CN
0.95
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
Nm (P>50%) 289
Core radius and density 2.2 [pc], 4.8 [pc-2]
C3 classification AA
  • CN 0.82 Rich
  • Cdens 0.95 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
NGC 6830 is a rich, very dense object of very 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 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. Silver 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).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.0607, e_all=0.1501.

Rain et al. (2021)
Cat. J/A+A/623/A108).This cluster was include in (Dias et al., 2002A&A...389..871D, Cat. B/ocl) however, parameters log(t)=8.005, Av=0.124, [Fe/H]=0.00 were taken from Bossini et al. (2019A&A...623A.108B,

Data
πŸ” Search references for NGC 6830 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 297.716 23.097 0.429 -3.202 -5.767 1.201
Li et al. 2025 297.718 23.101 0.424 -3.213 -5.766 –
Wei et al. 2025 297.715 23.087 0.43 -3.198 -5.777 –
Almeida et al. 2025 297.724 23.101 – – – –
Hunt & Reffert 2024 297.722 23.098 0.415 -3.196 -5.759 -1.175
Cavallo et al. 2024 297.717 23.1 0.42 – – –
Hunt & Reffert 2023 297.722 23.098 0.415 -3.196 -5.759 -1.175
Almeida et al. 2023 297.725 23.098 – – – –
Just et al. 2023 297.744 23.097 – – – –
Jaehnig et al. 2021 297.717 23.098 0.456 -3.204 -5.758 –
Rain et al. 2021 297.718 23.101 0.424 -3.213 -5.766 –
Dias et al. 2021 297.724 23.101 0.426 -3.215 -5.752 –
Cantat-Gaudin et al. 2020 297.718 23.101 0.424 -3.213 -5.766 –
SΓ‘nchez et al. 2020 297.746 23.1 – -3.154 -5.753 –
Cantat-Gaudin & Anders 2020 297.718 23.101 0.424 -3.213 -5.766 –
Bossini et al. 2019 297.718 23.101 – – – –
Soubiran et al. 2018 297.718 23.101 – – – 2.62
Bica et al. 2019 297.743 23.095 – – – –
Cantat-Gaudin et al. 2018 297.718 23.101 0.424 -3.213 -5.766 –
Dias et al. 2018 – – – -3.85 -5.58 –
Dib et al. 2018 297.75 23.1 – – – –
Loktin & Popova 2017 297.75 23.1 – 0.316 -7.392 -30.9
Sampedro et al. 2017 297.746 23.1 – -2.72 -5.54 –
Kharchenko et al. 2016 297.744 23.097 – – – –
Netopil et al. 2016 297.746 23.1 – – – –
Dias et al. 2014 297.746 23.1 – -3.1 -6.34 –
Kharchenko et al. 2013 297.75 23.1 – -0.86 -4.0 -30.9
Gozha et al. 2012 297.746 23.1 – – – –
Bukowiecki et al. 2011 297.717 23.101 – – – –
Piskunov et al. 2008 297.743 23.095 – – – –
Kharchenko et al. 2007 297.75 23.1 – 0.17 – -30.9
Ahumada & Lapasset 2007 297.75 23.1 – – – –
van den Bergh 2006 297.75 23.1 – – – –
Kharchenko et al. 2005 297.75 23.1 – -0.04 -2.7 –
Kharchenko et al. 2003 297.76 23.08 – 0.07 -5.86 –
Dias et al. 2002 297.746 23.1 – 0.89 -2.76 -30.9
Dambis 1999 297.746 23.1 – – – –
Lynga 1987 297.777 23.089 – – – –
Sulentic et al. 1973 297.768 23.081 – – – –

πŸ’‘ 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– 2.03 1.605 1.74 90 0.240 735 0.445 0
Li et al. 2025 1.85 1.57 – 236 0.054 – – –
Wei et al. 2025 2.49 1.66 – 71 0.500 2058 0.31 –
Almeida et al. 2025 2.04 1.75 – 107 – 642 – –
Hunt & Reffert 2024 2.14 1.75 1.74 59 – 1871(1) – –
Cavallo et al. 2024 2.39 1.88 – 69 0.590 – – –
Hunt & Reffert 2023 2.14 1.75 1.74 59 – – – –
Almeida et al. 2023 2.02 1.86 – 53 0.159 699(1) 0.58 –
Just et al. 2023 – – – 127 – 330 – –
Jaehnig et al. 2021 2.19(1) – – – – – – –
Rain et al. 2021 2.21 1.51 – 100 – – – 0
Dias et al. 2021 2.04 1.75 – 107 0.280 – – –
Cantat-Gaudin et al. 2020 2.38 1.44 – 162 – – – –
Kounkel et al. 2020 2.32 1.63 – 123 – – – –
Cantat-Gaudin & Anders 2020 2.21 – – – – – – –
Bossini et al. 2019 2.37 1.51 – 101 0.220 – – –
Soubiran et al. 2018 2.21 – – – – – – –
Cantat-Gaudin et al. 2018 2.21 – – – – – – –
Dib et al. 2018 1.84 – – 127 – – – –
Loktin & Popova 2017 1.65 1.57 – 39 – – – –
Kharchenko et al. 2016 1.84 1.71 – 127 – – – –
Netopil et al. 2016 7.28 – – 90 – – – –
Kharchenko et al. 2013 1.84 1.71 – 127 – – – –
Bukowiecki et al. 2012 – – – – – 735 – –
Gozha et al. 2012 1.64 – – 37 – 1660 – –
Bukowiecki et al. 2011 1.92(1) 1.48 – 56 – – – –
Piskunov et al. 2008 1.64 1.58 – 33 – – – –
Ahumada & Lapasset 2007 – 1.58 – 37 – – – 0
van den Bergh 2006 1.64 1.58 – 37 – – – –
Kharchenko et al. 2005 1.64 1.58 – 33 – – – –
Kharchenko et al. 2003 1.64 1.58 – – – – – –
Dias et al. 2002 1.64 1.58 – 37 0.240 – – –
Dambis 1999 1.61 1.79 – 100 – – – –
Lynga 1987 1.47 1.77 – 100 – – – –

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

Visualization
ℹ️
NGC 6830 UCC
NGC 6830 HUNT23
NGC 6830 CANTAT20
Galactocentric position diagram