Collinder 451

(NGC 7296; MWSC 3625; OCL 228; FoF 679)

0.91 UTI

0.8

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 237

Stellar density (N₅₀/rad) 23.8 [N/pc²]

C3 classification AB

C_N 0.8 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

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

Overview

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Collinder 451 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a 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.

Relatively close Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 451 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–	336.986	52.321	0.378	-2.941	-2.748	-30.339
Li et al.	2025	337.0	52.321	0.395	-2.958	-2.712	–
Almeida et al.	2025	337.003	52.318	–	–	–	–
Hunt & Reffert	2024	336.981	52.32	0.382	-2.929	-2.753	-31.722
Cavallo et al.	2024	336.993	52.317	0.382	–	–	–
Hunt & Reffert	2023	336.981	52.32	0.382	-2.929	-2.753	-31.722
Almeida et al.	2023	336.992	52.332	–	–	–	–
Just et al.	2023	337.006	52.326	–	–	–	–
Dias et al.	2021	337.003	52.318	0.399	-2.959	-2.712	–
Cantat-Gaudin et al.	2020	337.0	52.321	0.395	-2.958	-2.712	–
Cantat-Gaudin & Anders	2020	337.0	52.321	0.395	-2.958	-2.712	–
Liu & Pang	2019	336.978	52.32	0.397	-3.002	-2.741	–
Bossini et al.	2019	337.0	52.321	–	–	–	–
Soubiran et al.	2018	337.0	52.321	–	–	–	-29.85
Bica et al.	2019	337.01	52.311	–	–	–	–
Cantat-Gaudin et al.	2018	337.0	52.321	0.395	-2.958	-2.712	–
Loktin & Popova	2017	337.005	52.326	–	-1.148	-0.75	–
Kharchenko et al.	2016	337.006	52.326	–	–	–	–
Dias et al.	2014	337.004	52.323	–	-3.16	-2.11	–
Kharchenko et al.	2013	337.012	52.33	–	-3.41	-4.5	–
Kharchenko et al.	2012	337.012	52.33	–	-3.41	-4.5	–
Dias et al.	2002	337.004	52.323	–	-3.16	-2.11	–

💡 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–	2.365	0.71	0.53	324	-0.089	438	0.54	–
Li et al.	2025	2.30	0.63	–	487	-0.161	–	–	–
Almeida et al.	2025	2.41	0.78	–	259	–	234	–	–
Hunt & Reffert	2024	–	–	–	–	–	833⁽¹⁾	–	–
Cavallo et al.	2024	2.32	0.86	–	324	-0.240	–	–	–
Hunt & Reffert	2023	2.39	0.22	0.53	531	–	–	–	–
Almeida et al.	2023	2.41	0.79	–	251	-0.089	642⁽¹⁾	0.54	–
Just et al.	2023	–	–	–	473	–	82	–	–
Dias et al.	2021	2.41	0.78	–	259	-0.002	–	–	–
Cantat-Gaudin et al.	2020	2.37	0.79	–	105	–	–	–	–
Cantat-Gaudin & Anders	2020	2.36	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	589	-0.250	–	–	–
Bossini et al.	2019	2.60	0.71	–	84	-0.020	–	–	–
Soubiran et al.	2018	2.36	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.36	–	–	–	–	–	–	–
Loktin & Popova	2017	3.15	0.51	–	4	–	–	–	–
Kharchenko et al.	2016	2.01	0.59	–	473	–	–	–	–
Kharchenko et al.	2013	2.01	0.59	–	473	–	–	–	–
Kharchenko et al.	2012	2.01	0.59	–	473	–	–	–	–
Dias et al.	2002	2.45	0.74	–	282	0.000	–	–	–

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

Visualization

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