NGC 129

(MWSC 53; FoF 171)

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1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
Nm (P>50%) 504
Core radius and density 1.1 [pc], 11 [pc-2]
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
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
NGC 129 is a very 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 massive, 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.

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit. Gold 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=0.1589, e_all=0.2101.

Ahumada & Lapasset (2007)
Adopted cluster centre: star 100 in chart of (1959ApJ...130...80A). Star 10 has a spectrum B9V (1958ApJ...128..161K) and a membership probability of 10% (1984, Special Issue (Shangai)). Star 6 (sp. A05V) also appears as a straggler, but has a prob- ability of 7% (1984, Special Issue (Shangai)). Star 8 (ref. 181) = 196 (WEBDA) is given 0% in the same proper motion study. Star 173 (WEBDA) is star D in (1959ApJ...130...80A) and star 14 in (1961PUSNO..17..343H): it appears mildly as a straggler in (1961PUSNO..17..343H), but as a main-sequence star in (1959ApJ...130...80A).

Data
πŸ” Search references for NGC 129 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 7.606 60.207 0.527 -2.594 -1.178 -46.798
Li et al. 2025 7.607 60.213 0.511 -2.605 -1.096 –
Yang et al. 2025 7.591 60.206 – – – –
Wei et al. 2025 7.762 60.355 0.515 -2.498 -1.128 –
Almeida et al. 2025 7.573 60.223 – – – –
Hunt & Reffert 2024 7.59 60.206 0.525 -2.586 -1.177 -48.212
Cavallo et al. 2024 7.608 60.208 0.527 – – –
Hunt & Reffert 2023 7.59 60.206 0.525 -2.586 -1.177 -48.212
Almeida et al. 2023 7.55 60.243 – – – –
Angelo et al. 2023 7.633 60.226 – -2.59 -1.18 –
Just et al. 2023 7.533 60.199 – – – –
Jaehnig et al. 2021 7.604 60.208 0.538 -2.595 -1.105 –
Rain et al. 2021 7.607 60.213 0.511 -2.605 -1.096 –
Dias et al. 2021 7.573 60.223 0.513 -2.604 -1.096 -38.787
Cantat-Gaudin et al. 2020 7.607 60.213 0.511 -2.605 -1.096 –
SΓ‘nchez et al. 2020 7.5 60.218 – -2.676 -1.158 –
Cantat-Gaudin & Anders 2020 7.607 60.213 0.511 -2.605 -1.096 –
Liu & Pang 2019 7.591 60.218 0.507 -2.593 -1.115 –
Soubiran et al. 2018 7.607 60.213 – – – -37.89
Cantat-Gaudin et al. 2018 7.607 60.213 0.511 -2.605 -1.096 –
Dias et al. 2018 – – – -2.38 -0.63 –
Dib et al. 2018 7.542 60.203 – – – –
Loktin & Popova 2017 7.5 60.218 – 0.49 -0.256 -38.0
Sampedro et al. 2017 7.5 60.218 – -0.64 -0.44 –
Joshi et al. 2016 7.542 60.203 – – – –
Kharchenko et al. 2016 7.533 60.199 – – – –
Dias et al. 2014 7.5 60.218 – -1.23 -0.51 –
Kharchenko et al. 2013 7.542 60.203 – -2.2 -1.16 -38.0
Gozha et al. 2012 7.5 60.218 – – – –
Kharchenko et al. 2012 7.542 60.203 – -2.34 -1.29 -38.03
Bukowiecki et al. 2011 7.604 60.213 – – – –
Piskunov et al. 2008 7.499 60.221 – – – –
Kharchenko et al. 2007 7.5 60.22 – 0.27 – -43.21
Piskunov et al. 2007 7.499 60.221 – – – –
Ahumada & Lapasset 2007 7.5 60.217 – – – –
van den Bergh 2006 7.5 60.217 – – – –
Kharchenko et al. 2005 7.5 60.22 – -0.92 -0.48 -43.21
Kharchenko et al. 2003 7.47 60.22 – -1.77 -0.92 –
Chen et al. 2003 7.569 60.164 – -1.86 -1.7 -36.8
Dias et al. 2002 7.5 60.218 – -1.23 -0.51 -37.36
Dambis 1999 7.5 60.218 – – – –
Lynga 1987 7.459 60.219 – – – -13.0
Sulentic et al. 1973 7.476 60.221 – – – –

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– 1.72 1.74 1.93 94 0.111 1023 0.61 0
Li et al. 2025 1.77 1.13 – 528 0.246 – – –
Yang et al. 2025 – – – 105 -0.170(3) – – –
Wei et al. 2025 1.98 1.51 – 110 0.500 5981 0.68 –
Almeida et al. 2025 1.80 1.74 – 72 – 1846 – –
Hunt & Reffert 2024 1.77 1.74 1.93 105 – 2588(1) – –
Cavallo et al. 2024 1.89 1.80 – 102 0.410 – – –
Hunt & Reffert 2023 1.77 1.74 1.93 105 – – – –
Almeida et al. 2023 1.72 1.85 – 92 0.002 1577(1) 0.54 –
Angelo et al. 2023 1.82 1.96 – 112 0.220 3(1) – –
Just et al. 2023 – – – 94 – 103 – –
Jaehnig et al. 2021 1.84(1) – – – – – – –
Rain et al. 2021 1.85 1.70 – 76 – – – 0
Dias et al. 2021 1.80 1.74 – 72 0.248 – – –
Cantat-Gaudin et al. 2020 1.91 1.51 – 129 – – – –
Kounkel et al. 2020 1.94 1.74 – 120 – – – –
Cantat-Gaudin & Anders 2020 1.85 – – – – – – –
Liu & Pang 2019 – – – 977 -2.000 – – –
Soubiran et al. 2018 1.85 – – – – – – –
Cantat-Gaudin et al. 2018 1.85 – – – – – – –
Dib et al. 2018 1.69 – – 94 – – – –
Loktin & Popova 2017 1.62 1.73 – 76 – – – –
Joshi et al. 2016 1.69 1.71 – 94 – 1023 – –
Kharchenko et al. 2016 1.69 1.71 – 94 – – – –
Kharchenko et al. 2013 1.69 1.71 – 94 – – – –
Bukowiecki et al. 2012 – – – – – 1408 – –
Gozha et al. 2012 1.62 – – 77 -0.460 1023 – –
Kharchenko et al. 2012 1.69 1.71 – 94 – – – –
Bukowiecki et al. 2011 1.99(1) 1.77 – 79 – – – –
Paunzen et al. 2010 – – – – -0.460 – – –
Piskunov et al. 2008 1.62 1.74 – 74 – 964(1) – –
Piskunov et al. 2007 1.62 1.74 – 74 – 205 – –
Ahumada & Lapasset 2007 – 1.74 – 78 – – – 1
van den Bergh 2006 1.62 1.74 – 78 – – – –
Kharchenko et al. 2005 1.62 1.74 – 74 – – – –
Kharchenko et al. 2003 1.64 1.74 – – – – – –
Chen et al. 2003 1.62 – – 70 – – – –
Dias et al. 2002 1.62 1.73 – 77 – – – –
Dambis 1999 1.56 1.60 – 89 – – – –
Lynga 1987 1.60 1.86 – 151 – – – –

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

Visualization
ℹ️
NGC 129 UCC
NGC 129 HUNT23
NGC 129 CANTAT20
Galactocentric position diagram