Melotte 224

(Collinder 406; NGC 6830; MWSC 3191; OCL 125)

0.96 UTI

0.82

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 289

Stellar density (N₅₀/rad) 22.3 [N/pc²]

C3 classification AA

C_N 0.82 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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Melotte 224 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 massive, near-solar metallicity, young 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 Young

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Melotte 224 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–	297.716	23.097	0.429	-3.202	-5.767	1.201
Li et al.	2025	297.718	23.101	0.424	-3.213	-5.766	–
Wei et al.	2025	297.715	23.087	0.43	-3.198	-5.777	–
Almeida et al.	2025	297.724	23.101	–	–	–	–
Hunt & Reffert	2024	297.722	23.098	0.415	-3.196	-5.759	-1.175
Cavallo et al.	2024	297.717	23.1	0.42	–	–	–
Hunt & Reffert	2023	297.722	23.098	0.415	-3.196	-5.759	-1.175
Almeida et al.	2023	297.725	23.098	–	–	–	–
Just et al.	2023	297.744	23.097	–	–	–	–
Jaehnig et al.	2021	297.717	23.098	0.456	-3.204	-5.758	–
Rain et al.	2021	297.718	23.101	0.424	-3.213	-5.766	–
Dias et al.	2021	297.724	23.101	0.426	-3.215	-5.752	–
Cantat-Gaudin et al.	2020	297.718	23.101	0.424	-3.213	-5.766	–
Sánchez et al.	2020	297.746	23.1	–	-3.154	-5.753	–
Cantat-Gaudin & Anders	2020	297.718	23.101	0.424	-3.213	-5.766	–
Bossini et al.	2019	297.718	23.101	–	–	–	–
Soubiran et al.	2018	297.718	23.101	–	–	–	2.62
Bica et al.	2019	297.743	23.095	–	–	–	–
Cantat-Gaudin et al.	2018	297.718	23.101	0.424	-3.213	-5.766	–
Loktin & Popova	2017	297.75	23.1	–	0.316	-7.392	-30.9
Kharchenko et al.	2016	297.744	23.097	–	–	–	–
Dias et al.	2014	297.746	23.1	–	-3.1	-6.34	–
Kharchenko et al.	2013	297.75	23.1	–	-0.86	-4.0	-30.9
Gozha et al.	2012	297.746	23.1	–	–	–	–
Piskunov et al.	2008	297.743	23.095	–	–	–	–
Kharchenko et al.	2007	297.75	23.1	–	0.17	–	-30.9
van den Bergh	2006	297.75	23.1	–	–	–	–
Kharchenko et al.	2005	297.75	23.1	–	-0.04	-2.7	–
Kharchenko et al.	2003	297.76	23.08	–	0.07	-5.86	–
Dias et al.	2002	297.746	23.1	–	0.89	-2.76	-30.9
Dambis	1999	297.746	23.1	–	–	–	–

💡 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–	2.03	1.57	1.74	86	0.240	1180	0.445	0.0
Li et al.	2025	1.85	1.57	–	236	0.054	–	–	–
Wei et al.	2025	2.49	1.66	–	71	0.500	2058	0.31	–
Almeida et al.	2025	2.04	1.75	–	107	–	642	–	–
Hunt & Reffert	2024	–	–	–	–	–	1871⁽¹⁾	–	–
Cavallo et al.	2024	2.39	1.88	–	69	0.590	–	–	–
Hunt & Reffert	2023	2.14	1.75	1.74	59	–	–	–	–
Almeida et al.	2023	2.02	1.86	–	53	0.159	699⁽¹⁾	0.58	–
Just et al.	2023	–	–	–	127	–	330	–	–
Jaehnig et al.	2021	2.19⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	2.21	1.49	–	100	–	–	–	0
Dias et al.	2021	2.04	1.75	–	107	0.280	–	–	–
Cantat-Gaudin et al.	2020	2.38	1.44	–	162	–	–	–	–
Cantat-Gaudin & Anders	2020	2.21	–	–	–	–	–	–	–
Bossini et al.	2019	2.37	1.51	–	101	0.220	–	–	–
Soubiran et al.	2018	2.21	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.21	–	–	–	–	–	–	–
Loktin & Popova	2017	1.65	1.54	–	39	–	–	–	–
Kharchenko et al.	2016	1.84	1.68	–	127	–	–	–	–
Kharchenko et al.	2013	1.84	1.68	–	127	–	–	–	–
Gozha et al.	2012	1.64	–	–	37	–	1660	–	–
Piskunov et al.	2008	1.64	1.55	–	33	–	–	–	–
van den Bergh	2006	1.64	1.55	–	37	–	–	–	–
Kharchenko et al.	2005	1.64	1.55	–	33	–	–	–	–
Kharchenko et al.	2003	1.64	1.55	–	–	–	–	–	–
Dias et al.	2002	1.64	1.55	–	37	0.240	–	–	–
Dambis	1999	1.61	1.76	–	100	–	–	–	–

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

Visualization

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