FoF 1218

(LP 1218)

0.73 UTI

0.77

C_N

1.0

C_dens

1.0

C_C3

0.44

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 164

Radius (P>50% members) 3.2 [arcmin]

C_N 0.77 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.44 Poorly studied
C_dup 1.0 Unique

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

Overview

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FoF 1218 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, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

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

Relatively close Moderate extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for FoF 1218 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	–	273.98	-18.094	0.362	-0.001	-1.197	13.704
Almeida et al.	2025	273.966	-18.092	–	–	–	–
Hunt & Reffert	2024	273.98	-18.104	0.356	-0.003	-1.214	7.791
Cavallo et al.	2024	273.981	-18.104	0.357	–	–	–
Hunt & Reffert	2023	273.98	-18.104	0.356	-0.003	-1.214	7.791
Dias et al.	2021	273.966	-18.092	0.357	-0.061	-1.22	–
Cantat-Gaudin et al.	2020	273.976	-18.099	0.365	-0.034	-1.161	–
Liu & Pang	2019	273.96	-18.089	0.359	-0.074	-1.196	–

💡 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	2.58	2.66	–	8	–	963	–	–
Hunt & Reffert	2024	–	–	–	–	–	2250*	–	–
Cavallo et al.	2024	2.03	2.93	–	316	0.340	–	–	–
Hunt & Reffert	2023	2.46	3.30	2.73	68	–	–	–	–
Dias et al.	2021	2.58	2.66	–	8	0.259	–	–	–
Cantat-Gaudin et al.	2020	2.54	1.86	–	257	–	–	–	–
Liu & Pang	2019	–	–	–	513	0.500	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 1701	92.7	273.98	-18.1	0.36	-0.0	-1.21	12.31	0.05

💡 Note: The % column shows the percentage of members that FoF 1218 shares with each listed object.

Visualization

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