FSR 0667

(Patchick 16; MWSC 341)

0.88 UTI

0.66

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 82

Stellar density (N₅₀/rad) 10.7 [N/pc²]

C3 classification AB

C_N 0.66 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

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

Overview

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FSR 0667 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near 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 metallicity parameter (see Parameters). It is very well-studied in the literature.

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.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for FSR 0667 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–	61.768	51.146	0.863	0.853	-3.748	-0.512
Otto et al.	2026	61.777	51.15	–	0.9	-3.87	2.9
Li et al.	2025	61.766	51.141	0.844	0.901	-3.87	–
Almeida et al.	2025	61.765	51.137	–	–	–	–
Zhang et al.	2024	61.777	51.15	–	–	–	–
Hunt & Reffert	2024	61.777	51.15	0.879	0.851	-3.757	-7.061
Cavallo et al.	2024	61.752	51.13	0.874	–	–	–
Hunt & Reffert	2023	61.777	51.15	0.879	0.851	-3.757	-7.061
Almeida et al.	2023	61.769	51.142	–	–	–	–
He et al.	2022	61.778	51.141	0.866	0.829	-3.731	–
Jadhav & Subramaniam	2021	61.766	51.141	–	–	–	–
Dias et al.	2021	61.765	51.137	0.843	0.922	-3.877	1.838
Spina et al.	2021	61.771	51.144	0.837	0.899	-3.794	–
Cantat-Gaudin et al.	2020	61.766	51.141	0.844	0.901	-3.87	–
Donor et al.	2020	61.807	51.167	–	0.64	-4.01	3.7
Zhong et al.	2020	61.766	51.141	–	0.901	-3.87	12.846
Cantat-Gaudin & Anders	2020	61.766	51.141	0.844	0.901	-3.87	–
Soubiran et al.	2018	61.766	51.141	–	–	–	2.5
Bica et al.	2019	61.788	51.175	–	–	–	–
Cantat-Gaudin et al.	2018	61.766	51.141	0.844	0.901	-3.87	–
Dias et al.	2014	61.788	51.172	–	0.72	-1.86	–
Froebrich et al.	2007	61.788	51.172	–	–	–	–
Dias et al.	2002	61.788	51.172	–	-0.66	-1.05	–

💡 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–	1.14	1.56	1.19	433	-0.017	142	0.57	0
Otto et al.	2026	–	–	–	708	-0.040⁽¹⁵⁾	–	–	–
Li et al.	2025	1.24	1.46	–	417	-0.006	–	–	–
Almeida et al.	2025	1.10	1.64	–	433	–	119	–	–
Zhang et al.	2024	–	–	–	–	-0.244⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	256⁽¹⁾	–	–
Cavallo et al.	2024	1.17	1.37	–	479	0.230	–	–	–
Hunt & Reffert	2023	1.10	1.48	1.19	324	–	–	–	–
Almeida et al.	2023	1.10	1.69	–	412	-0.111	115⁽¹⁾	0.57	–
He et al.	2022	–	1.75	–	282	–	–	–	–
Spina et al.	2022	–	–	–	–	-0.020	–	–	–
Tarricq et al.	2022	1.14	–	–	759	–	–	–	–
Jadhav & Subramaniam	2021	1.18	1.12	–	708	–	165	–	0⁽¹⁾
Dias et al.	2021	1.10	1.64	–	433	0.047	–	–	–
Spina et al.	2021	1.20	–	–	708	-0.014⁽²⁰⁾	–	–	–
Cantat-Gaudin et al.	2020	1.18	1.12	–	708	–	–	–	–
Kounkel et al.	2020	1.09	1.85	–	309	–	–	–	–
Donor et al.	2020	–	–	–	–	-0.020	–	–	–
Zhong et al.	2020	0.00	0.00	–	0	0.000	–	–	–
Cantat-Gaudin & Anders	2020	1.14	–	–	–	–	–	–	–
Soubiran et al.	2018	1.14	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.14	–	–	–	–	–	–	–
Dias et al.	2002	1.82	2.96	–	120	–	–	–	–

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

Visualization

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