Melotte 63

(Collinder 133; NGC 2355; MWSC 1160; OCL 496; FSR 0995; FoF 632)

1.0 UTI

1.0

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 580

Stellar density (N₅₀/rad) 41.8 [N/pc²]

C3 classification AA

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

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

Overview

ℹ️

Melotte 63 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 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: good fit. Isochrone match: good fit. Gold sample.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Melotte 63 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	109.25	13.765	0.523	-3.833	-1.054	35.948
Li et al.	2025	109.247	13.772	0.497	-3.802	-1.086	–
Hu & Soubiran	2025	109.254	13.773	–	–	–	–
Almeida et al.	2025	109.248	13.771	–	–	–	–
Zhang et al.	2024	109.251	13.762	–	–	–	–
Hunt & Reffert	2024	109.251	13.762	0.525	-3.836	-1.054	29.547
Cavallo et al.	2024	109.254	13.773	0.526	–	–	–
Hunt & Reffert	2023	109.251	13.762	0.525	-3.836	-1.054	29.547
Almeida et al.	2023	109.249	13.768	–	–	–	–
Just et al.	2023	109.239	13.752	–	–	–	–
Jaehnig et al.	2021	109.246	13.77	0.527	-3.801	-1.066	–
Rain et al.	2021	109.247	13.772	0.497	-3.802	-1.086	–
Dias et al.	2021	109.248	13.771	0.491	-3.82	-1.073	36.697
Cantat-Gaudin et al.	2020	109.247	13.772	0.497	-3.802	-1.086	–
Donor et al.	2020	109.246	13.75	–	-3.38	-1.33	35.5
Cantat-Gaudin & Anders	2020	109.247	13.772	0.497	-3.802	-1.086	–
Liu & Pang	2019	109.248	13.774	0.494	-3.812	-1.084	–
Soubiran et al.	2018	109.247	13.772	–	–	–	36.85
Bica et al.	2019	109.239	13.757	–	–	–	–
Cantat-Gaudin et al.	2018	109.247	13.772	0.497	-3.802	-1.086	–
Loktin & Popova	2017	109.245	13.751	–	-0.452	-2.607	35.1
Kharchenko et al.	2016	109.239	13.752	–	–	–	–
Dias et al.	2014	109.246	13.75	–	-1.14	-3.35	–
Kharchenko et al.	2013	109.246	13.75	–	-0.2	-1.2	35.1
Gozha et al.	2012	109.246	13.75	–	–	–	–
Kharchenko et al.	2007	109.24	13.75	–	0.06	–	–
van den Bergh	2006	109.25	13.783	–	–	–	–
Chen et al.	2003	109.205	13.828	–	0.5	-2.4	35.1
Dias et al.	2002	109.246	13.75	–	-2.5	-3.0	35.02

💡 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–	1.9	0.415	0.43	867	-0.075	850	0.51	0.0
Li et al.	2025	1.83	0.46	–	1217	-0.141	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.150⁽⁵⁾	–	–	–
Almeida et al.	2025	1.79	0.32	–	1236	–	994	–	–
Zhang et al.	2024	–	–	–	–	-0.141⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	2022⁽¹⁾	–	–
Cavallo et al.	2024	1.79	0.37	–	1479	0.020	–	–	–
Hunt & Reffert	2023	1.73	0.11	0.43	1706	–	–	–	–
Almeida et al.	2023	1.78	0.30	–	1242	-0.004	705⁽¹⁾	0.51	–
Just et al.	2023	–	–	–	794	–	217	–	–
Jaehnig et al.	2021	1.90⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	1.90	0.68	–	794	–	–	–	0
Dias et al.	2021	1.79	0.32	–	1236	0.019	–	–	–
Cantat-Gaudin et al.	2020	1.94	0.59	–	1000	–	–	–	–
Donor et al.	2020	–	–	–	–	-0.140	–	–	–
Cantat-Gaudin & Anders	2020	1.90	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	1740	-0.750	–	–	–
Soubiran et al.	2018	1.90	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.90	–	–	–	–	–	–	–
Loktin & Popova	2017	2.24	0.48	–	867	–	–	–	–
Kharchenko et al.	2016	2.13	0.58	–	794	–	–	–	–
Kharchenko et al.	2013	2.13	0.58	–	794	-0.070	–	–	–
Gozha et al.	2012	2.20	–	–	708	-0.070	–	–	–
van den Bergh	2006	2.20	0.37	–	708	–	–	–	–
Chen et al.	2003	2.20	0.37	–	700	-0.070⁽¹⁾	–	–	–
Dias et al.	2002	1.95	0.68	–	794	-0.080	–	–	–

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

Visualization

ℹ️

1 2 3