Trumpler 29

(Collinder 343; MWSC 2663; Harvard 17; OCL 1009; ESO 334 04; FoF 2211)

0.91 UTI

0.79

C_N

1.0

C_dens

1.0

C_C3

0.87

C_lit

1.0

C_dup

N_m (P>50%) 215

Core radius and density 1.8 [pc], 6.5 [pc^-2]

C3 classification AA

C_N 0.79 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.87 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Trumpler 29 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.

Relatively close Low extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1797, e_all=0.0688.

Data

🔍 Search references for Trumpler 29 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–	265.35	-40.15	0.683	0.458	-2.345	-26.75
Li et al.	2025	265.347	-40.158	0.673	0.489	-2.308	–
Almeida et al.	2025	265.359	-40.169	–	–	–	–
Hunt & Reffert	2024	265.355	-40.147	0.683	0.448	-2.347	-34.763
Cavallo et al.	2024	265.337	-40.159	0.683	–	–	–
Hunt & Reffert	2023	265.355	-40.147	0.683	0.448	-2.347	-34.763
Cordoni et al.	2023	265.359	-40.169	0.673	0.478	-2.315	–
Just et al.	2023	265.363	-40.12	–	–	–	–
Dias et al.	2022	265.373	-40.15	0.673	0.471	-2.349	–
Tarricq et al.	2022	265.345	-40.108	0.668	0.447	-2.358	–
Richer et al.	2021	265.321	-40.162	0.622	0.481	-2.296	–
Dias et al.	2021	265.359	-40.169	0.673	0.478	-2.315	–
Cantat-Gaudin et al.	2020	265.347	-40.158	0.673	0.489	-2.308	–
Cantat-Gaudin & Anders	2020	265.347	-40.158	0.673	0.489	-2.308	–
Liu & Pang	2019	265.324	-40.149	0.665	0.471	-2.288	–
Bossini et al.	2019	265.347	-40.158	–	–	–	–
Soubiran et al.	2018	265.347	-40.158	–	–	–	-23.99
Bica et al.	2019	265.373	-40.167	–	–	–	–
Cantat-Gaudin et al.	2018	265.347	-40.158	0.673	0.489	-2.308	–
Dib et al.	2018	265.372	-40.12	–	–	–	–
Sampedro et al.	2017	265.379	-40.15	–	-0.94	-5.75	–
Joshi et al.	2016	265.372	-40.12	–	–	–	–
Kharchenko et al.	2016	265.363	-40.12	–	–	–	–
Dias et al.	2014	265.379	-40.15	–	-0.24	-5.02	–
Kharchenko et al.	2013	265.372	-40.12	–	0.6	-3.84	–
Piskunov et al.	2008	265.369	-40.153	–	–	–	–
Kharchenko et al.	2005	265.38	-40.15	–	1.45	-4.64	–
Kharchenko et al.	2003	265.38	-40.15	–	3.45	-3.26	–
Lynga	1987	265.421	-40.108	–	–	–	–

💡 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–	1.355	0.73	0.9	83	0.192	440	0.37	0
Li et al.	2025	1.46	0.76	–	67	0.259	–	–	–
Almeida et al.	2025	1.35	0.93	–	53	–	440	–	–
Hunt & Reffert	2024	1.38	0.71	0.90	133	–	849⁽¹⁾	–	–
Cavallo et al.	2024	1.31	1.10	–	81	-0.160	–	–	–
Hunt & Reffert	2023	1.38	0.70	0.90	133	–	–	–	–
Cordoni et al.	2023	1.35	0.93	–	53	0.192	5125	0.37	0⁽¹⁾
Just et al.	2023	–	–	–	484	–	53	–	–
Dias et al.	2022	1.37⁽¹⁾	0.74⁽¹⁾	–	76⁽¹⁾	0.088⁽¹⁾	–	–	–
Tarricq et al.	2022	1.45	–	–	52	–	–	–	–
Richer et al.	2021	–	1.03	–	–	–	–	–	–
Dias et al.	2021	1.35	0.93	–	53	0.192	–	–	–
Cantat-Gaudin et al.	2020	1.49	0.72	–	51	–	–	–	–
Kounkel et al.	2020	1.52	0.92	–	85	–	–	–	–
Cantat-Gaudin & Anders	2020	1.42	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	62	0.500	–	–	–
Bossini et al.	2019	1.36	0.75	–	58	0.000	–	–	–
Soubiran et al.	2018	1.42	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.42	–	–	–	–	–	–	–
Dib et al.	2018	1.10	–	–	484	–	–	–	–
Joshi et al.	2016	1.10	0.00	–	484	–	38	–	–
Kharchenko et al.	2016	1.10	0.00	–	484	–	–	–	–
Kharchenko et al.	2013	1.10	0.00	–	484	–	–	–	–
Piskunov et al.	2008	0.76	0.60	–	490	–	–	–	–
Kharchenko et al.	2005	0.76	0.60	–	490	–	–	–	–
Kharchenko et al.	2003	0.50	0.16	–	–	–	–	–	–

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

Visualization

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