Collinder 432

(IC 1369; MWSC 3481; OCL 204; FSR 0285; FoF 342)

0.93 UTI

0.88

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 459

Radius (P>50% members) 3.5 [arcmin]

C_N 0.88 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

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

Overview

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Collinder 432 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is very well-studied in the literature.

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

Distant Moderate extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 432 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	–	318.033	47.773	0.273	-4.612	-5.622	-49.105
Li et al.	2025	318.033	47.77	0.262	-4.644	-5.609	–
Almeida et al.	2025	318.024	47.768	–	–	–	–
Hunt & Reffert	2024	318.033	47.776	0.271	-4.603	-5.629	-45.727
Cavallo et al.	2024	318.041	47.781	0.264	–	–	–
Hunt & Reffert	2023	318.033	47.776	0.271	-4.603	-5.629	-45.727
Almeida et al.	2023	318.019	47.77	–	–	–	–
Just et al.	2023	318.043	47.752	–	–	–	–
Jaehnig et al.	2021	318.029	47.769	0.288	-4.641	-5.6	–
Rain et al.	2021	318.033	47.77	0.262	-4.644	-5.609	–
Dias et al.	2021	318.024	47.768	0.265	-4.638	-5.6	-47.338
Cantat-Gaudin et al.	2020	318.033	47.77	0.262	-4.644	-5.609	–
Sánchez et al.	2020	318.025	47.733	–	-4.618	-5.631	–
Donor et al.	2020	318.048	47.755	–	-4.68	-5.55	-48.5
Cantat-Gaudin & Anders	2020	318.033	47.77	0.262	-4.644	-5.609	–
Liu & Pang	2019	318.03	47.772	0.28	-4.652	-5.604	–
Bossini et al.	2019	318.033	47.77	–	–	–	–
Soubiran et al.	2018	318.033	47.77	–	–	–	-48.25
Bica et al.	2019	318.029	47.764	–	–	–	–
Cantat-Gaudin et al.	2018	318.033	47.77	0.262	-4.644	-5.609	–
Loktin & Popova	2017	318.03	47.755	–	-0.869	-0.083	–
Kharchenko et al.	2016	318.043	47.752	–	–	–	–
Dias et al.	2014	318.025	47.733	–	-3.36	-5.37	–
Kharchenko et al.	2013	318.048	47.755	–	-4.02	-0.91	–
van den Bergh	2006	318.025	47.733	–	–	–	–
Dias et al.	2002	318.025	47.733	–	-3.36	-5.37	–

💡 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	2.83	2.63	–	342	-0.021	–	–	–
Almeida et al.	2025	2.81	2.49	–	331	–	1374	–	–
Hunt & Reffert	2024	–	–	–	–	–	3589*	–	–
Cavallo et al.	2024	3.28	2.84	–	219	0.170	–	–	–
Hunt & Reffert	2023	3.42	2.79	1.70	184	–	–	–	–
Almeida et al.	2023	2.87	2.56	–	309	-0.009	1262*	0.67	–
Just et al.	2023	–	–	–	347	–	731	–	–
Jaehnig et al.	2021	3.48*	–	–	–	–	–	–	–
Rain et al.	2021	3.44	2.05	–	288	–	–	–	0
Dias et al.	2021	2.81	2.49	–	331	-0.023	–	–	–
Cantat-Gaudin et al.	2020	3.30	2.11	–	288	–	–	–	–
Donor et al.	2020	–	–	–	–	-0.080	–	–	–
Cantat-Gaudin & Anders	2020	3.44	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	741	0.500	–	–	–
Bossini et al.	2019	3.23	2.05	–	290	0.090	–	–	–
Soubiran et al.	2018	3.44	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	3.44	–	–	–	–	–	–	–
Loktin & Popova	2017	2.27	1.75	–	457	–	–	–	–
Kharchenko et al.	2016	2.53	1.78	–	347	–	–	–	–
Kharchenko et al.	2013	2.53	1.78	–	347	–	–	–	–
van den Bergh	2006	2.08	1.77	–	437	–	–	–	–
Dias et al.	2002	2.08	1.77	–	437	0.090	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0141	7.8	318.03	47.77	0.28	-4.6	-5.64	-48.27	0.0

💡 Note: The % column shows the percentage of members that Collinder 432 shares with each listed object.

Visualization

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