FoF 201

(FoF 0201; LP 0201)

0.61 UTI

0.79

C_N

1.0

C_dens

0.75

C_C3

0.25

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 212

Radius (P>50% members) 3.3 [arcmin]

C_N 0.79 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

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

Overview

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FoF 201 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is poorly studied in the literature.

Note: This object shares a moderate percentage of members with a later reported entry. See table with shared members information.

Distant Moderate extinction Near-solar metallicity Young

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

Data

🔍 Search references for FoF 201 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	–	118.956	-29.474	0.249	-2.618	2.926	70.428
Almeida et al.	2025	118.954	-29.469	–	–	–	–
He et al.	2023	118.954	-29.477	0.255	-2.622	2.918	70.43
Almeida et al.	2023	118.957	-29.469	–	–	–	–
Dias et al.	2021	118.954	-29.469	0.227	-2.586	2.917	–

💡 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	2.99	2.20	–	58	–	486	–	–
He et al.	2023	3.31	2.35	–	20	–	–	–	–
Almeida et al.	2023	3.41	2.32	–	21	-0.142	656*	0.72	–
Dias et al.	2021	2.99	2.20	–	58	-0.178	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 1981	47.2	118.95	-29.47	0.26	-2.63	2.93	78.74	0.0

💡 Note: The % column shows the percentage of members that FoF 201 shares with each listed object.

Visualization

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