FoF 665

(FoF 0665; LP 0665)

0.51 UTI

0.54

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 58

Radius (P>50% members) 2.4 [arcmin]

C_N 0.54 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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FoF 665 is a moderately populated, 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 near-solar metallicity, old cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.

Distant Moderate extinction Near-solar metallicity Old

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

Data

🔍 Search references for FoF 665 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	–	108.7	-26.254	0.271	-2.068	2.771	79.915
Almeida et al.	2025	108.698	-26.245	–	–	–	–
Almeida et al.	2023	108.702	-26.246	–	–	–	–
Dias et al.	2021	108.698	-26.245	0.25	-1.972	2.725	–

💡 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	3.42	1.55	–	1104	–	986	–	–
Almeida et al.	2023	3.33	1.33	–	1138	-0.068	573*	0.57	–
Dias et al.	2021	3.42	1.55	–	1104	-0.203	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 71	94.8	108.7	-26.25	0.27	-2.07	2.77	80.02	0.13
OC 0413	48.3	108.71	-26.25	0.27	-2.07	2.76	79.81	0.0

💡 Note: The % column shows the percentage of members that FoF 665 shares with each listed object.

Visualization

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