NGC 2169

(FSR 0947; MWSC 740)

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0.90 UTI
0.77
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 149
Stellar density (N50/rad) 50.9 [N/pc2]
C3 classification AB
  • CN 0.77 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 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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NGC 2169 is a rich, very dense object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is very 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.

Liu et al. (2025)
Classified as primordial binary cluster 197 along with HSC_1551, and of multiple system 54 along with HSC_1561 and HSC_1551.

Palma et al. (2025)
Part of multiple system G120, along with HSC_1551 and HSC_1561.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data
🔍 Search references for NGC 2169 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 99999– 92.127 13.947 1.038 -1.096 -1.604 10.488
Liu et al. 2025 92.12 13.97 1.04 -1.09 -1.61 17.22
Li et al. 2025 92.125 13.951 0.982 -1.068 -1.655 –
Almeida et al. 2025 92.129 13.937 – – – –
Zhang et al. 2024 92.118 13.967 – – – –
Hunt & Reffert 2024 92.118 13.967 1.035 -1.086 -1.612 17.224
Celli et al. 2024 92.125 13.951 – – – –
Cavallo et al. 2024 92.144 13.918 1.033 – – –
Hunt & Reffert 2023 92.118 13.967 1.035 -1.086 -1.612 17.224
Almeida et al. 2023 92.124 13.934 – – – –
Just et al. 2023 92.092 13.991 – – – –
He et al. 2022 92.129 13.962 1.038 -1.127 -1.613 –
Jaehnig et al. 2021 92.122 13.951 1.048 -1.076 -1.661 –
Rain et al. 2021 92.125 13.951 0.982 -1.068 -1.655 –
Richer et al. 2021 92.122 13.953 1.006 -0.944 -1.602 –
Dias et al. 2021 92.129 13.937 0.975 -1.059 -1.659 –
Cantat-Gaudin et al. 2020 92.125 13.951 0.982 -1.068 -1.655 –
Cantat-Gaudin & Anders 2020 92.125 13.951 0.982 -1.068 -1.655 –
Loktin & Popova 2017 92.1 13.966 – 0.072 -0.856 22.3
Kharchenko et al. 2016 92.092 13.991 – – – –
Dias et al. 2014 92.1 13.965 – -1.85 -2.68 –
Kharchenko et al. 2013 92.1 13.99 – -1.84 -2.37 22.3
Camargo et al. 2012 92.246 13.876 – – – –
Gozha et al. 2012 92.1 13.965 – – – –
Bukowiecki et al. 2011 92.138 13.969 – – – –
Piskunov et al. 2008 92.091 13.969 – – – –
Kharchenko et al. 2007 92.1 13.97 – 0.15 – 22.23
Froebrich et al. 2007 92.246 13.876 – – – –
Ahumada & Lapasset 2007 92.1 13.967 – – – –
van den Bergh 2006 92.135 13.966 – – – –
Kharchenko et al. 2005 92.1 13.97 – -2.17 -2.52 22.22
Kharchenko et al. 2003 92.13 13.97 – -2.96 -3.74 –
Chen et al. 2003 92.127 13.988 – -4.21 -2.45 17.0
Dias et al. 2002 92.1 13.965 – -4.21 -2.45 22.5
Dambis 1999 92.125 13.967 – – – –

💡 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– 1.015 0.63 1.21 8 -0.179 178 0.32 0
Liu et al. 2025 0.73 0.13 – 37 – – – –
Li et al. 2025 0.98 0.72 – 4 -0.248 – – –
Almeida et al. 2025 1.00 0.82 – 8 – 169 – –
Zhang et al. 2024 – – – – -0.224(1) – – –
Hunt & Reffert 2024 – – – – – 230(1) – –
Celli et al. 2024 – – – 12 – 199 – –
Cavallo et al. 2024 0.93 0.78 – 3 -0.060 – – –
Hunt & Reffert 2023 0.93 0.58 1.21 5 – – – –
Almeida et al. 2023 0.94 0.81 – 8 -0.179 234(1) 0.32 –
Just et al. 2023 – – – 8 – 41 – –
He et al. 2022 – 0.80 – 6 – – – –
Jaehnig et al. 2021 0.94(1) – – – – – – –
Rain et al. 2021 0.99 0.60 – 11 – – – 0
Richer et al. 2021 – 0.78 – 12 – – – –
Dias et al. 2021 1.00 0.82 – 8 -0.092 – – –
Cantat-Gaudin et al. 2020 1.07 0.85 – 12 – – – –
Cantat-Gaudin & Anders 2020 0.99 – – – – – – –
Loktin & Popova 2017 1.04 0.63 – 12 – – – –
Kharchenko et al. 2016 1.03 0.63 – 8 – – – –
Kharchenko et al. 2013 1.03 0.63 – 8 – – – –
Bukowiecki et al. 2012 – – – – – 178 – –
Camargo et al. 2012 2.93 2.38 – 2 – – – –
Gozha et al. 2012 1.05 – – 12 – 30 – –
Bukowiecki et al. 2011 0.82(1) 0.47 – 7 – – – –
Piskunov et al. 2008 1.03 0.63 – 8 – – – –
Ahumada & Lapasset 2007 – 0.63 – 12 – – – 0
van den Bergh 2006 1.05 0.63 – 12 – – – –
Kharchenko et al. 2005 1.03 0.63 – 8 – – – –
Kharchenko et al. 2003 1.05 0.63 – – – – – –
Chen et al. 2003 1.05 – – 10 – – – –
Dias et al. 2002 1.05 0.63 – 12 – – – –
Dambis 1999 0.99 0.61 – 10 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0323 75.8 92.13 13.95 1.04 -1.1 -1.6 8.95 0.0

💡 Note: The % column shows the percentage of members that NGC 2169 shares with each listed object.

Visualization
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NGC 2169 UCC
NGC 2169 HUNT23
NGC 2169 CANTAT20
Galactocentric position diagram