Collinder 339

(VDBH 239; NGC 6396; MWSC 2644; OCL 1018; vdBergh-Hagen 239; ESO 393 10)

0.95 UTI

0.76

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 126

Stellar density (N₅₀/rad) 41.2 [N/pc²]

C3 classification AA

C_N 0.76 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Collinder 339 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the distance, age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

(*): The parallax distance estimate (~2.73 kpc) differs significantly from the median photometric distance (~1.78 kpc).

Relatively close Moderate extinction Near-solar metallicity Young

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 339 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–	264.395	-35.018	0.366	-0.477	-2.041	-13.229
Li et al.	2025	264.399	-35.013	0.353	-0.451	-2.05	–
Almeida et al.	2025	264.405	-35.013	–	–	–	–
Hunt & Reffert	2024	264.397	-35.022	0.36	-0.46	-2.045	-27.817
Celli et al.	2024	264.399	-35.013	–	–	–	–
Cavallo et al.	2024	264.398	-35.023	0.359	–	–	–
Hunt & Reffert	2023	264.397	-35.022	0.36	-0.46	-2.045	-27.817
Just et al.	2023	264.395	-35.023	–	–	–	–
Jaehnig et al.	2021	264.408	-35.014	0.383	-0.449	-2.06	–
Rain et al.	2021	264.399	-35.013	0.353	-0.451	-2.05	–
Dias et al.	2021	264.405	-35.013	0.359	-0.436	-2.027	–
Cantat-Gaudin et al.	2020	264.399	-35.013	0.353	-0.451	-2.05	–
Cantat-Gaudin & Anders	2020	264.399	-35.013	0.353	-0.451	-2.05	–
Soubiran et al.	2018	264.399	-35.013	–	–	–	-13.48
Bica et al.	2019	264.396	-35.025	–	–	–	–
Cantat-Gaudin et al.	2018	264.399	-35.013	0.353	-0.451	-2.05	–
Loktin & Popova	2017	264.405	-35.028	–	-1.468	2.216	-29.0
Kharchenko et al.	2016	264.395	-35.023	–	–	–	–
Dias et al.	2014	264.4	-35.027	–	-1.52	-0.9	–
Kharchenko et al.	2013	264.405	-35.022	–	1.45	-5.83	-29.0
Gozha et al.	2012	264.4	-35.027	–	–	–	–
Kharchenko et al.	2007	264.4	-35.03	–	0.03	–	–
van den Bergh	2006	264.525	-35.0	–	–	–	–
Dias et al.	2002	264.4	-35.027	–	-1.52	-0.9	-13.55
Dambis	1999	264.4	-35.027	–	–	–	–

💡 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]	B_frac	BSS
UCC	99999–	1.785	2.87	2.57	32	-0.359	714	–	0.0
Li et al.	2025	0.71	1.52	–	1573	-0.359	–	–	–
Almeida et al.	2025	2.14	2.85	–	13	–	528	–	–
Hunt & Reffert	2024	–	–	–	–	–	2186⁽¹⁾	–	–
Celli et al.	2024	–	–	–	15	–	899	–	–
Cavallo et al.	2024	1.43	3.75	–	17	-0.770	–	–	–
Hunt & Reffert	2023	2.47	3.36	2.57	11	–	–	–	–
Just et al.	2023	–	–	–	32	–	13	–	–
Jaehnig et al.	2021	2.57⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	2.62	2.85	–	32	–	–	–	0
Dias et al.	2021	2.14	2.85	–	13	0.288	–	–	–
Cantat-Gaudin et al.	2020	2.52	2.93	–	15	–	–	–	–
Cantat-Gaudin & Anders	2020	2.62	–	–	–	–	–	–	–
Soubiran et al.	2018	2.62	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.62	–	–	–	–	–	–	–
Loktin & Popova	2017	1.21	2.82	–	36	–	–	–	–
Kharchenko et al.	2016	1.17	3.29	–	32	–	–	–	–
Kharchenko et al.	2013	1.17	3.29	–	32	–	–	–	–
Gozha et al.	2012	1.19	–	–	32	–	–	–	–
van den Bergh	2006	1.19	2.88	–	32	–	–	–	–
Dias et al.	2002	1.19	2.87	–	32	–	–	–	–
Dambis	1999	1.12	2.86	–	22	–	–	–	–

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

Visualization

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