Koposov 10

(FSR 0795; MWSC 669; MWSC 668)

0.88 UTI

0.64

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 79

Radius (P>50% members) 2.3 [arcmin]

C_N 0.64 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Koposov 10 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

(*): The parallax distance estimate (~3.06 kpc) differs significantly from the median photometric distance (~2.32 kpc).

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Koposov 10 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	–	86.864	35.427	0.327	0.491	-1.729	–
Almeida et al.	2025	86.861	35.429	–	–	–	–
Zhang et al.	2024	86.865	35.421	–	–	–	–
Hunt & Reffert	2024	86.865	35.421	0.321	0.486	-1.711	–
Cavallo et al.	2024	86.871	35.429	0.322	–	–	–
Hunt & Reffert	2023	86.865	35.421	0.321	0.486	-1.711	–
Almeida et al.	2023	86.859	35.431	–	–	–	–
Just et al.	2023	86.865	35.42	–	–	–	–
Dias et al.	2021	86.861	35.429	0.309	0.47	-1.826	–
Cantat-Gaudin et al.	2020	86.861	35.427	0.329	0.457	-1.78	–
Cantat-Gaudin & Anders	2020	86.861	35.427	0.329	0.457	-1.78	–
Soubiran et al.	2018	86.861	35.427	–	–	–	0.0
Bica et al.	2019	86.88	35.431	–	–	–	–
Cantat-Gaudin et al.	2018	86.861	35.427	0.329	0.457	-1.78	–
Loktin & Popova	2017	86.865	35.432	–	1.237	-1.371	–
Kharchenko et al.	2016	86.865	35.42	–	–	–	–
Dias et al.	2014	86.871	35.432	–	0.25	-3.02	–
Kharchenko et al.	2013	86.875	35.419	–	4.47	-4.56	–
Kharchenko et al.	2012	86.875	35.419	–	4.46	-4.71	–
Glushkova et al.	2010	86.869	35.432	–	–	–	–
Koposov et al.	2008	86.869	35.432	–	–	–	–
Froebrich et al.	2007	86.871	35.432	–	–	–	–
Dias et al.	2002	86.871	35.432	–	0.25	-3.02	–

💡 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]	Bfr	BSS
Almeida et al.	2025	2.26	2.46	–	251	–	462	–	–
Zhang et al.	2024	–	–	–	–	-0.124*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	512*	–	–
Cavallo et al.	2024	2.65	2.57	–	126	0.290	–	–	–
Hunt & Reffert	2023	2.73	2.65	1.00	62	–	–	–	–
Almeida et al.	2023	2.38	2.50	–	190	-0.192	457*	0.65	–
Just et al.	2023	–	–	–	596	–	9	–	–
Dias et al.	2021	2.26	2.46	–	251	-0.211	–	–	–
Cantat-Gaudin et al.	2020	2.99	2.08	–	178	–	–	–	–
Cantat-Gaudin & Anders	2020	2.79	–	–	–	–	–	–	–
Soubiran et al.	2018	2.79	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.79	–	–	–	–	–	–	–
Loktin & Popova	2017	3.16	2.00	–	417	–	–	–	–
Kharchenko et al.	2016	1.82	1.94	–	596	–	–	–	–
Kharchenko et al.	2013	1.82	1.94	–	596	–	–	–	–
Kharchenko et al.	2012	1.70	2.02	–	692	–	–	–	–
Glushkova et al.	2010	2.00	2.51	–	398	–	–	–	–
Koposov et al.	2008	2.00	2.51	–	398	–	–	–	–
Dias et al.	2002	2.00	2.51	–	398	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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