Melotte 127

(Collinder 284; VDBH 162; NGC 5662; OCL 928; vdBergh-Hagen 162; ESO 175 10; MWSC 2234; FoF 2331)

0.98 UTI

0.88

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 447

Stellar density (N₅₀/rad) 25.0 [N/pc²]

C3 classification AA

C_N 0.88 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 127 is a rich, very dense object of very high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

Close Low extinction Near-solar metallicity Young

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 127 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–	218.733	-56.668	1.292	-6.482	-7.199	-24.659
Li et al.	2025	218.734	-56.64	1.288	-6.427	-7.243	–
Wei et al.	2025	218.75	-56.665	1.294	-6.468	-7.19	–
Almeida et al.	2025	218.751	-56.647	–	–	–	–
Alfonso et al.	2024	218.725	-56.659	1.259	-6.478	-7.201	–
Hunt & Reffert	2024	218.927	-56.575	1.299	-6.495	-7.204	-25.12
Cavallo et al.	2024	218.699	-56.656	1.298	–	–	–
Hunt & Reffert	2023	218.927	-56.575	1.299	-6.495	-7.204	-25.12
Almeida et al.	2023	218.755	-56.633	–	–	–	–
He et al.	2022	218.784	-56.674	1.294	-6.471	-7.212	–
Tarricq et al.	2022	218.878	-56.713	1.286	-6.471	-7.176	–
Jaehnig et al.	2021	218.833	-56.633	1.32	-6.404	-7.247	–
Rain et al.	2021	218.734	-56.64	1.288	-6.427	-7.243	–
Dias et al.	2021	218.751	-56.647	1.294	-6.439	-7.246	-20.351
Cantat-Gaudin et al.	2020	218.734	-56.64	1.288	-6.427	-7.243	–
Cantat-Gaudin & Anders	2020	218.734	-56.64	1.288	-6.427	-7.243	–
Liu & Pang	2019	218.718	-56.719	1.286	-6.444	-7.228	–
Soubiran et al.	2018	218.734	-56.64	–	–	–	-21.14
Bica et al.	2019	218.936	-56.55	–	–	–	–
Cantat-Gaudin et al.	2018	218.734	-56.64	1.288	-6.427	-7.243	–
Loktin & Popova	2017	218.91	-56.618	–	-4.579	-3.935	-23.2
Dias et al.	2014	218.904	-56.618	–	-2.04	-2.54	–
Gozha et al.	2012	218.904	-56.618	–	–	–	–
Piskunov et al.	2008	218.888	-56.615	–	–	–	–
Kharchenko et al.	2007	218.91	-56.62	–	0.32	–	–
Piskunov et al.	2007	218.888	-56.615	–	–	–	–
van den Bergh	2006	218.9	-56.617	–	–	–	–
Kharchenko et al.	2005	218.91	-56.62	–	-5.97	-6.12	–
Kharchenko et al.	2003	218.88	-56.62	–	-5.03	-4.12	–
Chen et al.	2003	218.767	-56.535	–	-5.64	-7.24	-23.2
Dias et al.	2002	218.904	-56.618	–	-2.04	-2.54	-21.27
Dambis	1999	218.904	-56.618	–	–	–	–

💡 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–	0.74	0.96	0.65	93	-0.003	586	0.395	0.0
Li et al.	2025	0.76	0.79	–	230	0.140	–	–	–
Wei et al.	2025	1.22	1.30	–	66	0.000	831	0.29	–
Almeida et al.	2025	0.74	1.06	–	105	–	586	–	–
Alfonso et al.	2024	0.76	0.60	–	221	-0.003	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1069⁽¹⁾	–	–
Cavallo et al.	2024	0.76	0.95	–	151	0.340	–	–	–
Hunt & Reffert	2023	0.73	0.82	0.65	88	–	–	–	–
Almeida et al.	2023	0.75	1.12	–	119	-0.021	658⁽¹⁾	0.50	–
He et al.	2022	–	1.15	–	79	–	–	–	–
Tarricq et al.	2022	0.75	–	–	204	–	–	–	–
Jaehnig et al.	2021	0.76⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	0.76	0.96	–	91	–	–	–	0
Dias et al.	2021	0.74	1.06	–	105	-0.005	–	–	–
Cantat-Gaudin et al.	2020	0.76	0.60	–	200	–	–	–	–
Cantat-Gaudin & Anders	2020	0.76	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	35	-0.250	–	–	–
Soubiran et al.	2018	0.76	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	0.76	–	–	–	–	–	–	–
Loktin & Popova	2017	0.70	1.02	–	100	–	–	–	–
Gozha et al.	2012	0.67	–	–	93	0.030	229	–	–
Piskunov et al.	2008	0.68	0.96	–	44	–	348⁽¹⁾	–	–
Piskunov et al.	2007	0.68	0.96	–	44	–	99	–	–
van den Bergh	2006	0.67	0.96	–	93	–	–	–	–
Kharchenko et al.	2005	0.68	0.96	–	44	–	–	–	–
Kharchenko et al.	2003	0.67	0.78	–	–	–	–	–	–
Chen et al.	2003	0.67	–	–	90	–	–	–	–
Dias et al.	2002	0.67	0.96	–	93	-0.030	–	–	–
Dambis	1999	0.72	1.05	–	100	–	–	–	–

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

Visualization

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