NGC 1980

Click to load Aladin Lite
0.89 UTI
0.84
CN
1.0
Cdens
0.62
CC3
1.0
Clit
1.0
Cdup
Nm (P>50%) 344
Core radius and density 0.8 [pc], 36 [pc-2]
C3 classification AC
  • CN 0.84 Rich
  • Cdens 1.0 Very dense
  • CC3 0.62 Intermediate 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
ℹī¸
NGC 1980 is a rich, very dense object of intermediate C3 quality. Its parallax locates it at a very close distance, below 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 absorption and metallicity parameters (see Parameters). It is very well-studied in the literature.

Note: This object shares a very small percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Li et al. (2026)
Tidal & Core radii: r_t=27+/-2.2 [pc], r_c=0.32+/-0.02 [pc]; stars within r_t: N~1346

Liu et al. (2025)
Classified as primordial binary cluster 202 along with HSC_1633, and of multiple system 57 along with OCSN_59 and HSC_1633.

Palma et al. (2025)
Part of multiple system G124, along with OCSN_59 and HSC_1633.

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

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.90 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.90 (50th percentile).

Data
🔍 Search references for NGC 1980 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 83.816 -5.958 2.602 1.239 0.552 20.884
Li et al. 2026 83.82 -5.83 – – – –
Liu et al. 2025 83.8 -5.92 2.6 1.26 0.47 23.24
Li et al. 2025 83.81 -5.924 2.586 1.215 0.54 –
Yang et al. 2025 83.801 -5.921 – – – –
Qin et al. 2025 83.801 -5.921 – – – –
Almeida et al. 2025 83.792 -5.935 – – – –
Alfonso et al. 2024 83.808 -6.03 2.567 1.23 0.51 –
Zhang et al. 2024 83.801 -5.921 – – – –
Swiggum et al. 2024 83.801 -5.921 2.6 1.265 0.472 26.797
Hunt & Reffert 2024 83.801 -5.921 2.6 1.265 0.472 23.24
Celli et al. 2024 83.81 -5.924 – – – –
Cavallo et al. 2024 83.778 -5.96 2.6 – – –
Hunt & Reffert 2023 83.801 -5.921 2.6 1.265 0.472 23.24
He et al. 2022 83.803 -5.785 2.61 1.005 0.462 –
Fu et al. 2022 83.81 -5.924 – – – 23.094
Dias et al. 2021 83.792 -5.935 2.583 1.211 0.569 27.206
Spina et al. 2021 83.799 -5.919 2.585 1.221 0.535 –
Cantat-Gaudin et al. 2020 83.81 -5.924 2.586 1.215 0.54 –
Donor et al. 2020 83.865 -5.915 – 1.26 0.76 26.2
Dias et al. 2019 83.85 -5.915 2.585 1.23 0.529 25.264
Dib et al. 2018 83.865 -5.915 – – – –
Loktin & Popova 2017 83.85 -5.914 – 1.951 -0.524 25.3
Sampedro et al. 2017 83.85 -5.915 – 0.2 -0.93 –
Joshi et al. 2016 83.865 -5.915 – – – –
Dias et al. 2016 83.85 -5.915 – 0.73 -0.46 28.54
Dias et al. 2014 83.85 -5.915 – 0.73 -0.46 –
Gozha et al. 2012 83.85 -5.915 – – – –
Kharchenko et al. 2009 83.838 -5.907 – – – –
Piskunov et al. 2008 83.838 -5.907 – – – –
Kharchenko et al. 2007 83.85 -5.91 – 0.21 – 25.34
Piskunov et al. 2007 83.838 -5.907 – – – –
Kharchenko et al. 2005 83.85 -5.91 – 0.83 -0.36 25.34
Kharchenko et al. 2003 83.8 -5.91 – 0.46 -1.01 –
Dias et al. 2002 83.85 -5.915 – – – –
Lynga 1987 83.851 -5.932 – – – 21.0
Sulentic et al. 1973 83.806 -5.918 – – – –
Alter et al. 1970 83.851 -5.932 – – – –

💡 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– 0.4 0.16 1.91 7 -0.080 82 – –
Liu et al. 2025 0.40 0.04 – 7 – – – –
Li et al. 2025 0.33 0.10 – 10 -0.150 – – –
Yang et al. 2025 – – – 7 -0.100(3) – – –
Qin et al. 2025 – – – 7(1) – – – –
Almeida et al. 2025 0.32 0.13 – 9 – 140 – –
Alfonso et al. 2024 0.35 0.69 – 10 -0.238 – – –
Zhang et al. 2024 – – – – 0.006(1) – – –
Swiggum et al. 2024 0.38 – – 7 – 484 – –
Hunt & Reffert 2024 0.37 0.51 1.91 7 – 245(1) – –
Celli et al. 2024 – – – 13 – 130 – –
Cavallo et al. 2024 0.40 1.00 – 10 0.060 – – –
Hunt & Reffert 2023 0.37 0.51 1.91 7 – – – –
He et al. 2022 – 0.05 – 6 – – – –
Fu et al. 2022 – – – – 0.108 – – –
Spina et al. 2022 – – – – -0.072 – – –
Dias et al. 2021 0.32 0.13 – 9 -0.242 – – –
Spina et al. 2021 0.39 – – 13 -0.075(20) – – –
Cantat-Gaudin et al. 2020 0.38 0.70 – 13 – – – –
Donor et al. 2020 – – – – -0.080 – – –
Dias et al. 2019 0.30 0.09 – 9 -0.404 – – –
Dib et al. 2018 0.52 – – 5 – – – –
Loktin & Popova 2017 0.48 0.67 – 7 – – – –
Joshi et al. 2016 0.52 0.20 – 5 – 34 – –
Dias et al. 2016 0.55 0.16 – 5 – – – –
Gozha et al. 2012 0.50 – – 5 – 34 – –
Kharchenko et al. 2009 0.55 0.16 – 5 – – – –
Piskunov et al. 2008 0.55 0.16 – 5 – 26(1) – –
Piskunov et al. 2007 0.55 0.16 – 5 – 6 – –
Kharchenko et al. 2005 0.55 0.16 – 5 – – – –
Kharchenko et al. 2003 0.50 – – – – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 208 99.7 83.81 -5.95 2.6 1.24 0.54 23.25 0.06
OCSN 226 91.6 83.82 -5.96 2.61 1.26 0.55 23.02 0.02
OC 0347 30.8 83.99 -6.36 2.6 1.01 0.32 24.19 0.31
LP 2373 13.7 83.83 -5.73 2.6 1.2 0.61 16.2 0.0
NGC 1976 8.4 83.82 -5.45 2.58 1.25 0.19 19.86 0.78
OCSN 244 7.0 83.82 -5.43 2.52 1.39 0.33 25.62 0.25
OCSN 225 5.8 83.84 -4.96 2.55 1.25 -0.08 22.73 0.36
OC 0345 4.4 83.77 -5.87 2.58 1.06 0.21 19.86 0.01
LDN1641 North 1.2 84.08 -6.37 2.55 0.73 0.35 10.96 0.23
Morgan 8 1.2 84.13 -6.42 2.55 0.85 0.3 16.82 0.41
OMC-1 1.2 83.82 -5.37 2.5 0.95 -0.07 -7.13 0.39
Orion Nebula 1.2 83.82 -5.36 2.51 1.23 0.18 25.16 0.34

💡 Note: The % column shows the percentage of members that NGC 1980 shares with each listed object.

Visualization
ℹī¸
NGC 1980 UCC
NGC 1980 HUNT23
NGC 1980 CANTAT20
Galactocentric position diagram