NGC 1980

0.82 UTI

0.84

C_N

1.0

C_dens

0.62

C_C3

1.0

C_lit

0.92

C_dup

C3 classification AC

Number of members (P>50%) 344

Radius (P>50% members) 16.2 [arcmin]

C_N 0.84 Rich
C_dens 1.0 Very dense
C_C3 0.62 Intermediate quality
C_lit 1.0 Very well-studied
C_dup 0.92 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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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 parameter (see Parameters). It is very well-studied in the literature.

Note: This is very likely a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

Very close Low extinction Near-solar metallicity Very young

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

Cavallo et al. (2024)
Silver sample.

Data

🔍 Search references for NGC 1980 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	–	83.816	-5.958	2.602	1.239	0.552	20.884
Li et al.	2025	83.81	-5.924	2.586	1.215	0.54	–
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	–	–	–	–
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	–
Dias et al.	2021	83.792	-5.935	2.583	1.211	0.569	27.206
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
Loktin & Popova	2017	83.85	-5.914	–	1.951	-0.524	25.3
Dias et al.	2014	83.85	-5.915	–	0.73	-0.46	–
Gozha et al.	2012	83.85	-5.915	–	–	–	–
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	–	0.73	-0.46	28.54

💡 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]	Bfr	BSS
Li et al.	2025	0.33	0.10	–	10	-0.150	–	–	–
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*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	245*	–	–
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	–	–	–	–
Dias et al.	2021	0.32	0.13	–	9	-0.242	–	–	–
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	-0.930	–	–	–
Loktin & Popova	2017	0.48	0.65	–	7	–	–	–	–
Gozha et al.	2012	0.50	–	–	5	–	34	–	–
Piskunov et al.	2008	0.55	0.16	–	5	–	26*	–	–
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	–	–	–	–	–	–	–
Dias et al.	2002	0.55	0.16	–	5	–	–	–	–

(*): Indicates that this parameter is assigned more than one value 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
NGC 1976	8.4	83.82	-5.45	2.58	1.25	0.19	19.86	0.77
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	0.03
Morgan 8	1.2	84.13	-6.42	2.55	0.85	0.3	16.82	0.32

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

Visualization

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