Melotte 102

(Collinder 229; VDBH 103; IC 2602; MWSC 1841; OCL 838; vdBergh-Hagen 103; ESO 093 02; OCSN 205)

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) 643

Stellar density (N₅₀/rad) 31.2 [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 102 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near 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 absorption parameter (see Parameters). It is very well-studied in the literature.

Very 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 102 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–	160.605	-64.341	6.602	-17.804	10.497	16.424
Li et al.	2025	160.613	-64.426	6.561	-17.582	10.7	–
Almeida et al.	2025	160.418	-64.417	–	–	–	–
Alfonso et al.	2024	160.939	-64.402	6.575	-17.862	10.552	–
Hunt & Reffert	2024	160.973	-64.393	6.6	-17.775	10.669	15.935
Cavallo et al.	2024	160.896	-64.495	6.599	–	–	–
Hunt & Reffert	2023	160.973	-64.393	6.6	-17.775	10.669	15.935
Almeida et al.	2023	160.603	-64.344	–	–	–	–
Qin et al.	2023	160.77	-64.37	6.59	-17.76	10.61	16.96
He et al.	2022	160.786	-64.455	6.611	-17.763	10.62	–
Jaehnig et al.	2021	160.472	-64.468	6.604	-17.597	10.774	–
Rain et al.	2021	160.613	-64.426	6.561	-17.582	10.7	–
Dias et al.	2021	160.418	-64.417	6.552	-17.638	10.68	16.806
Cantat-Gaudin et al.	2020	160.613	-64.426	6.561	-17.582	10.7	–
Cantat-Gaudin & Anders	2020	160.613	-64.426	6.561	-17.582	10.7	–
Bossini et al.	2019	160.613	-64.426	–	–	–	–
Soubiran et al.	2018	160.613	-64.426	–	–	–	17.44
Bica et al.	2019	160.788	-64.381	–	–	–	–
Cantat-Gaudin et al.	2018	160.613	-64.426	6.561	-17.582	10.7	–
Yen et al.	2018	160.617	-64.244	6.79	-17.63	10.57	–
Loktin & Popova	2017	160.74	-64.4	–	-17.49	10.1	21.9
Kharchenko et al.	2016	160.434	-64.396	–	–	–	–
Dias et al.	2014	160.742	-64.4	–	-4.34	1.4	–
Kharchenko et al.	2013	160.44	-64.4	–	-16.95	9.65	21.9
Gozha et al.	2012	160.742	-64.4	–	–	–	–
Piskunov et al.	2008	160.58	-64.401	–	–	–	–
Kharchenko et al.	2007	160.74	-64.4	–	2.5	–	19.02
Piskunov et al.	2007	160.58	-64.401	–	–	–	–
van den Bergh	2006	160.8	-64.4	–	–	–	–
Kharchenko et al.	2005	160.59	-64.4	–	-17.16	11.11	19.01
Kharchenko et al.	2003	160.59	-64.4	–	-17.8	11.2	–
Chen et al.	2003	160.746	-64.394	–	-17.49	10.1	22.0
Dias et al.	2002	160.742	-64.4	–	-17.49	10.1	18.12
Dambis	1999	160.742	-64.4	–	–	–	–

💡 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–	0.15	0.09	0.56	36	0.000	470	0.32	0.0
Li et al.	2025	0.15	0.14	–	54	0.037	–	–	–
Almeida et al.	2025	0.15	0.29	–	47	–	192	–	–
Alfonso et al.	2024	0.15	0.03	–	33	-0.015	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	237⁽¹⁾	–	–
Cavallo et al.	2024	0.15	0.65	–	33	0.080	–	–	–
Hunt & Reffert	2023	0.15	0.11	0.56	26	–	–	–	–
Almeida et al.	2023	0.15	0.10	–	50	0.121	264⁽¹⁾	0.32	–
Qin et al.	2023	0.16	0.19	–	28	–	–	–	–
He et al.	2022	–	0.05	–	32	–	–	–	–
Jaehnig et al.	2021	0.15⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	0.15	0.06	–	32	–	–	–	0
Dias et al.	2021	0.15	0.29	–	47	-0.016	–	–	–
Cantat-Gaudin et al.	2020	0.15	0.03	–	36	–	–	–	–
Cantat-Gaudin & Anders	2020	0.15	–	–	–	–	–	–	–
Bossini et al.	2019	0.15	0.10	–	35	0.000	–	–	–
Soubiran et al.	2018	0.15	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	0.15	–	–	–	–	–	–	–
Yen et al.	2018	0.15	0.01	–	100	–	–	–	–
Loktin & Popova	2017	0.16	0.07	–	32	–	–	–	–
Kharchenko et al.	2016	0.15	0.10	–	221	–	–	–	–
Kharchenko et al.	2013	0.15	0.10	–	221	-0.099	–	–	–
Gozha et al.	2012	0.16	–	–	32	0.000	676	–	–
Piskunov et al.	2008	0.16	0.09	–	68	–	1012⁽¹⁾	–	–
Piskunov et al.	2007	0.16	0.09	–	68	–	767	–	–
van den Bergh	2006	0.16	0.06	–	32	–	–	–	–
Kharchenko et al.	2005	0.16	0.09	–	68	–	–	–	–
Kharchenko et al.	2003	0.15	0.06	–	–	–	–	–	–
Chen et al.	2003	0.16	0.07	–	30	-0.090⁽¹⁾	–	–	–
Dias et al.	2002	0.16	0.07	–	32	0.000	–	–	–
Dambis	1999	0.14	0.12	–	40	–	–	–	–

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

Visualization

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