FoF 273

(LP 273)

0.61 UTI

0.77

C_N

1.0

C_dens

1.0

C_C3

0.16

C_lit

0.98

C_dup

N_m (P>50%) 152

Core radius and density 1.1 [pc], 8.6 [pc^-2]

C3 classification AA

C_N 0.77 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.16 Rarely studied
C_dup 0.98 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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FoF 273 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.55 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.55 (50th percentile).

Data

🔍 Search references for FoF 273 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–	245.725	-50.178	0.386	-2.355	-4.123	-72.388
Li et al.	2025	245.723	-50.172	0.372	-2.322	-4.119	–
Hunt & Reffert	2024	245.725	-50.177	0.394	-2.383	-4.091	-69.164
Cavallo et al.	2024	245.72	-50.168	0.393	–	–	–
Hunt & Reffert	2023	245.725	-50.177	0.394	-2.383	-4.091	-69.164
Jadhav & Subramaniam	2021	245.723	-50.172	–	–	–	–
Cantat-Gaudin et al.	2020	245.723	-50.172	0.372	-2.322	-4.119	–
Liu & Pang	2019	245.718	-50.174	0.362	-2.346	-4.109	–

💡 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–	2.345	2.605	2.21	380	0.058	1244	–	0
Li et al.	2025	2.41	2.52	–	700	0.058	–	–	–
Hunt & Reffert	2024	2.29	2.69	2.21	238	–	1656⁽¹⁾	–	–
Cavallo et al.	2024	2.06	2.69	–	398	0.110	–	–	–
Hunt & Reffert	2023	2.29	2.69	2.21	238	–	–	–	–
Jadhav & Subramaniam	2021	2.40	2.05	–	380	–	831	–	0⁽¹⁾
Cantat-Gaudin et al.	2020	2.40	2.05	–	380	–	–	–	–
Liu & Pang	2019	–	–	–	1480	-0.750	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 543	95.4	245.73	-50.18	0.39	-2.36	-4.12	-71.96	0.1
CWWDL 1589	66.4	245.73	-50.17	0.39	-2.36	-4.12	-71.96	0.0
CWWDL 13867	25.7	245.73	-50.18	0.41	-2.41	-4.1	-72.39	0.04
BDB2003 G333.60-00.21	2.0	245.6	-50.12	0.35	-2.74	-4.01	-29.65	0.02
G333.6-0.2	1.3	245.61	-50.11	0.36	-2.73	-4.01	-14.28	0.03

💡 Note: The % column shows the percentage of members that FoF 273 shares with each listed object.

Visualization

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