Melotte 92

(Collinder 193; VDBH 45; NGC 2660; MWSC 1539; OCL 759; vdBergh-Hagen 45; ESO 260 04; FSR 1445; FoF 56)

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) 1072

Stellar density (N₅₀/rad) 137.0 [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

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Melotte 92 is a very 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, old cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is very well-studied in the literature.

Note: This object contains blue stragglers according to at least one source.

Relatively close Moderate extinction Massive Near-solar metallicity Old Contains BSS

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 92 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	130.669	-47.199	0.333	-2.743	5.197	21.834
Li et al.	2025	130.667	-47.201	0.308	-2.763	5.165	–
Hu & Soubiran	2025	130.664	-47.197	–	–	–	–
Carrasco-Varela et al.	2025	130.755	-47.27	–	–	–	–
Almeida et al.	2025	130.668	-47.198	–	–	–	–
Hunt & Reffert	2024	130.666	-47.2	0.333	-2.748	5.204	20.57
Cavallo et al.	2024	130.664	-47.197	0.335	–	–	–
Hunt & Reffert	2023	130.666	-47.2	0.333	-2.748	5.204	20.57
Just et al.	2023	130.66	-47.194	–	–	–	–
Jaehnig et al.	2021	130.669	-47.199	0.338	-2.762	5.164	–
Rain et al.	2021	130.667	-47.201	0.308	-2.763	5.165	–
Dias et al.	2021	130.668	-47.198	0.307	-2.744	5.167	22.622
Cantat-Gaudin et al.	2020	130.667	-47.201	0.308	-2.763	5.165	–
Sánchez et al.	2020	130.658	-47.2	–	-2.773	5.08	–
Cantat-Gaudin & Anders	2020	130.667	-47.201	0.308	-2.763	5.165	–
Liu & Pang	2019	130.664	-47.197	0.312	-2.816	5.09	–
Soubiran et al.	2018	130.667	-47.201	–	–	–	23.6
Bica et al.	2019	130.674	-47.193	–	–	–	–
Cantat-Gaudin et al.	2018	130.667	-47.201	0.308	-2.763	5.165	–
Loktin & Popova	2017	130.665	-47.2	–	-1.57	5.0	21.3
Kharchenko et al.	2016	130.66	-47.194	–	–	–	–
Dias et al.	2014	130.658	-47.2	–	-1.57	5.0	–
Kharchenko et al.	2013	130.665	-47.197	–	-6.85	4.6	21.3
Gozha et al.	2012	130.658	-47.2	–	–	–	–
van den Bergh	2006	130.658	-47.2	–	–	–	–
Chen et al.	2003	130.567	-47.149	–	–	–	–
Dias et al.	2002	130.658	-47.2	–	-1.57	5.0	21.8

💡 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–	2.82	1.385	1.3	1184	0.005	2396	–	0.09
Li et al.	2025	2.77	1.49	–	1184	-0.042	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.200⁽⁵⁾	–	–	–
Carrasco-Varela et al.	2025	2.64	1.46	–	1191	0.000	–	–	0.09⁽¹⁾
Almeida et al.	2025	2.64	1.46	–	1191	–	2396	–	–
Hunt & Reffert	2024	–	–	–	–	–	4888⁽¹⁾	–	–
Cavallo et al.	2024	2.37	1.32	–	1514	0.050	–	–	–
Hunt & Reffert	2023	2.73	1.47	1.30	979	–	–	–	–
Just et al.	2023	–	–	–	1259	–	394	–	–
Jaehnig et al.	2021	2.92⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	2.97	0.96	–	1072	–	–	–	2
Dias et al.	2021	2.64	1.46	–	1191	0.010	–	–	–
Cantat-Gaudin et al.	2020	2.79	1.19	–	933	–	–	–	–
Cantat-Gaudin & Anders	2020	2.97	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	1450	-0.250	–	–	–
Soubiran et al.	2018	2.97	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.97	–	–	–	–	–	–	–
Loktin & Popova	2017	2.78	0.98	–	1079	–	–	–	–
Kharchenko et al.	2016	2.82	1.45	–	1259	–	–	–	–
Kharchenko et al.	2013	2.82	1.45	–	1259	0.040	–	–	–
Gozha et al.	2012	2.83	–	–	1079	0.040	–	–	–
van den Bergh	2006	2.83	0.96	–	1072	–	–	–	–
Chen et al.	2003	2.83	0.97	–	1070	-0.180⁽¹⁾	–	–	–
Dias et al.	2002	2.83	0.97	–	1079	0.040	–	–	–

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

Visualization

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