Trumpler 32

(Collinder 372; MWSC 2873; Harvard 19; OCL 55)

1.0 UTI

1.0

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 1002

Radius (P>50% members) 7.4 [arcmin]

C_N 1.0 Very 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 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Trumpler 32 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, above 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 metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

Relatively close Moderate extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Trumpler 32 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	–	274.294	-13.349	0.578	-1.028	1.161	16.012
Li et al.	2025	274.294	-13.349	0.578	-1.052	1.158	–
Hu & Soubiran	2025	274.301	-13.343	–	–	–	–
Almeida et al.	2025	274.301	-13.351	–	–	–	–
Hunt & Reffert	2024	274.292	-13.356	0.579	-1.039	1.16	18.996
Cavallo et al.	2024	274.302	-13.343	0.579	–	–	–
Hunt & Reffert	2023	274.292	-13.356	0.579	-1.039	1.16	18.996
Almeida et al.	2023	274.298	-13.332	–	–	–	–
Just et al.	2023	274.29	-13.331	–	–	–	–
Dias et al.	2021	274.301	-13.351	0.578	-1.052	1.152	17.222
Cantat-Gaudin et al.	2020	274.294	-13.349	0.578	-1.052	1.158	–
Cantat-Gaudin & Anders	2020	274.294	-13.349	0.578	-1.052	1.158	–
Soubiran et al.	2018	274.294	-13.349	–	–	–	16.52
Bica et al.	2019	274.296	-13.362	–	–	–	–
Cantat-Gaudin et al.	2018	274.294	-13.349	0.578	-1.052	1.158	–
Loktin & Popova	2017	274.335	-13.346	–	-0.809	-4.314	–
Kharchenko et al.	2016	274.29	-13.331	–	–	–	–
Dias et al.	2014	274.375	-13.35	–	-0.91	-0.34	–
Kharchenko et al.	2013	274.297	-13.33	–	0.64	-3.6	–
van den Bergh	2006	274.375	-13.35	–	–	–	–
Dias et al.	2002	274.375	-13.35	–	-0.91	-0.34	–

💡 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	1.76	2.53	–	754	0.150	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.160*	–	–	–
Almeida et al.	2025	1.56	2.48	–	647	–	975	–	–
Hunt & Reffert	2024	–	–	–	–	–	4914*	–	–
Cavallo et al.	2024	1.40	2.64	–	813	-0.290	–	–	–
Hunt & Reffert	2023	1.61	2.18	2.07	764	–	–	–	–
Almeida et al.	2023	1.60	2.43	–	748	0.079	1422*	0.62	–
Just et al.	2023	–	–	–	624	–	1750	–	–
Dias et al.	2021	1.56	2.48	–	647	-0.008	–	–	–
Cantat-Gaudin et al.	2020	1.61	1.32	–	1349	–	–	–	–
Cantat-Gaudin & Anders	2020	1.65	–	–	–	–	–	–	–
Soubiran et al.	2018	1.65	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.65	–	–	–	–	–	–	–
Loktin & Popova	2017	1.94	2.94	–	457	–	–	–	–
Kharchenko et al.	2016	1.62	2.39	–	624	–	–	–	–
Kharchenko et al.	2013	1.62	2.39	–	624	–	–	–	–
van den Bergh	2006	1.72	1.98	–	302	–	–	–	–
Dias et al.	2002	1.72	1.98	–	302	–	–	–	–

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

Visualization

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