Melotte 241

(Collinder 449; NGC 7245; MWSC 3603; OCL 225; FSR 0348; FoF 166)

0.97 UTI

0.86

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 389

Stellar density (N₅₀/rad) 34.4 [N/pc²]

C3 classification AA

C_N 0.86 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 241 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, intermediate-age cluster (see Parameters). It is very well-studied in the literature.

Note: This object shares a 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: good fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Melotte 241 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–	333.814	54.334	0.277	-3.947	-3.278	-74.143
Li et al.	2025	333.812	54.336	0.273	-3.952	-3.249	–
Hu & Soubiran	2025	333.807	54.336	–	–	–	–
Almeida et al.	2025	333.811	54.337	–	–	–	–
Hunt & Reffert	2024	333.809	54.339	0.273	-3.942	-3.281	-74.444
Cavallo et al.	2024	333.807	54.336	0.274	–	–	–
Hunt & Reffert	2023	333.809	54.339	0.273	-3.942	-3.281	-74.444
Almeida et al.	2023	333.809	54.337	–	–	–	–
Just et al.	2023	333.804	54.33	–	–	–	–
Dias et al.	2021	333.811	54.337	0.276	-3.955	-3.252	-73.125
Cantat-Gaudin et al.	2020	333.812	54.336	0.273	-3.952	-3.249	–
Sánchez et al.	2020	333.796	54.343	–	-3.857	-3.109	–
Cantat-Gaudin & Anders	2020	333.812	54.336	0.273	-3.952	-3.249	–
Liu & Pang	2019	333.829	54.336	0.295	-3.841	-3.188	–
Soubiran et al.	2018	333.812	54.336	–	–	–	-73.59
Bica et al.	2019	333.807	54.338	–	–	–	–
Cantat-Gaudin et al.	2018	333.812	54.336	0.273	-3.952	-3.249	–
Loktin & Popova	2017	333.795	54.343	–	-0.641	-0.408	65.3
Kharchenko et al.	2016	333.804	54.33	–	–	–	–
Dias et al.	2014	333.796	54.343	–	-1.98	-1.76	–
Kharchenko et al.	2013	333.81	54.333	–	-5.62	-3.2	–
Kharchenko et al.	2012	333.81	54.333	–	-5.62	-3.2	–
van den Bergh	2006	333.825	54.333	–	–	–	–
Dias et al.	2002	333.796	54.343	–	-1.98	-1.76	65.3

💡 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–	3.26	1.41	0.42	447	-0.006	1327	0.64	–
Li et al.	2025	3.18	1.09	–	659	0.060	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.110⁽⁵⁾	–	–	–
Almeida et al.	2025	2.88	1.41	–	449	–	1446	–	–
Hunt & Reffert	2024	–	–	–	–	–	1784⁽¹⁾	–	–
Cavallo et al.	2024	3.01	1.32	–	525	0.090	–	–	–
Hunt & Reffert	2023	3.61	1.16	0.42	380	–	–	–	–
Almeida et al.	2023	2.80	1.29	–	625	-0.085	1186⁽¹⁾	0.64	–
Just et al.	2023	–	–	–	355	–	1208	–	–
Dias et al.	2021	2.88	1.41	–	449	-0.006	–	–	–
Cantat-Gaudin et al.	2020	3.21	0.96	–	603	–	–	–	–
Cantat-Gaudin & Anders	2020	3.31	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	576	0.250	–	–	–
Soubiran et al.	2018	3.31	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	3.31	–	–	–	–	–	–	–
Loktin & Popova	2017	2.17	1.42	–	188	–	–	–	–
Kharchenko et al.	2016	4.00	1.47	–	355	–	–	–	–
Kharchenko et al.	2013	4.00	1.47	–	355	–	–	–	–
Kharchenko et al.	2012	4.00	1.47	–	355	–	–	–	–
van den Bergh	2006	2.11	1.46	–	178	–	–	–	–
Dias et al.	2002	3.47	1.40	–	447	-0.150	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0166	15.7	333.81	54.33	0.29	-3.94	-3.29	-74.72	0.0

💡 Note: The % column shows the percentage of members that Melotte 241 shares with each listed object.

Visualization

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