NGC 7129

(MWSC 3549)

Click to load Aladin Lite
0.79 UTI
0.64
CN
1.0
Cdens
0.75
CC3
0.77
Clit
1.0
Cdup
Nm (P>50%) 79
Core radius and density 0.4 [pc], 61 [pc-2]
C3 classification AB
  • CN 0.64 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.77 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 7129 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Palma et al. (2025)
Classified as genetic pair P232, along with HSC_814.

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

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.06 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.06 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1872, e_all=0.1887.

Bica et al. (2003)
Classified as infrared cluster (IRC).

Data
🔍 Search references for NGC 7129 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 325.728 66.113 1.129 -1.758 -3.419 -0.16
Almeida et al. 2025 325.782 66.134 – – – –
Alfonso et al. 2024 325.723 66.135 1.079 -1.818 -3.45 –
Hunt & Reffert 2024 325.741 66.123 1.097 -1.773 -3.46 -17.652
Celli et al. 2024 325.74 66.114 – – – –
Cavallo et al. 2024 325.691 66.169 1.095 – – –
Hunt & Reffert 2023 325.741 66.123 1.097 -1.773 -3.46 -17.652
Just et al. 2023 325.72 66.107 – – – –
He et al. 2022 325.764 66.125 1.133 -1.727 -3.413 –
Dias et al. 2021 325.782 66.134 1.075 -1.759 -3.442 –
Cantat-Gaudin et al. 2020 325.74 66.114 1.086 -1.759 -3.267 –
Cantat-Gaudin & Anders 2020 325.74 66.114 1.086 -1.759 -3.267 –
Cantat-Gaudin et al. 2018 325.74 66.114 1.086 -1.759 -3.267 –
Dias et al. 2018 – – – -1.47 -1.38 –
Loktin & Popova 2017 325.725 66.107 – 0.128 -1.309 –
Joshi et al. 2016 325.725 66.11 – – – –
Kharchenko et al. 2016 325.72 66.107 – – – –
Tadross 2014 325.746 66.113 – – – –
Kharchenko et al. 2013 325.725 66.11 – -1.41 -3.97 –
Kharchenko et al. 2012 325.725 66.11 – -1.48 -3.92 –
Bukowiecki et al. 2011 325.733 66.108 – – – –
Bica et al. 2003 325.728 66.1 – – – –
Dias et al. 2002 325.746 66.113 – -1.62 -3.08 –
Lynga 1987 325.328 66.09 – – – –
Sulentic et al. 1973 325.317 66.098 – – – –

💡 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– 0.905 2.49 2.45 14 0.128 96 – –
Almeida et al. 2025 0.89 2.20 – 6 – 93 – –
Alfonso et al. 2024 0.87 1.78 – 20 0.128 – – –
Hunt & Reffert 2024 0.91 2.30 2.45 10 – 313(1) – –
Celli et al. 2024 – – – 21 – 96 – –
Cavallo et al. 2024 1.43 2.14 – 52 -0.160 – – –
Hunt & Reffert 2023 0.91 2.30 2.45 10 – – – –
Just et al. 2023 – – – 14 – 1 – –
He et al. 2022 – 2.75 – 6 – – – –
Dias et al. 2021 0.89 2.20 – 6 0.128 – – –
Cantat-Gaudin et al. 2020 0.88 1.78 – 21 – – – –
Kounkel et al. 2020 1.01 2.32 – 11 – – – –
Cantat-Gaudin & Anders 2020 0.90 – – – – – – –
Cantat-Gaudin et al. 2018 0.90 – – – – – – –
Loktin & Popova 2017 0.72 2.49 – 525 – – – –
Joshi et al. 2016 1.05 4.43 – 14 – – – –
Kharchenko et al. 2016 1.05 4.43 – 14 – – – –
Tadross 2014 1.07 3.06 – 120 – – – –
Kharchenko et al. 2013 1.05 4.43 – 14 – – – –
Bukowiecki et al. 2012 – – – – – 105 – –
Kharchenko et al. 2012 0.65 4.10 – 45 – – – –
Bukowiecki et al. 2011 0.32(1) 3.38 – 20 – – – –
Dias et al. 2002 1.07 3.06 – 120 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
LKHalpha 234 92.4 325.73 66.11 1.13 -1.79 -3.44 -13.71 0.17

💡 Note: The % column shows the percentage of members that NGC 7129 shares with each listed object.

Visualization
ℹī¸
NGC 7129 UCC
NGC 7129 HUNT23
NGC 7129 CANTAT20
Galactocentric position diagram