FSR 1180

(MWSC 1155; FoF 374)

0.71 UTI

0.86

C_N

0.46

C_dens

1.0

C_C3

0.61

C_lit

1.0

C_dup

N_m (P>50%) 389

Core radius and density 4.9 [pc], 2.3 [pc^-2]

C3 classification AA

C_N 0.86 Rich
C_dens 0.46 Loose
C_C3 1.0 Very high quality
C_lit 0.61 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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FSR 1180 is a rich, loose object of very high C3 quality. Its parallax locates it at a moderate distance, above 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 and mass parameters (see Parameters). It is moderately 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: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.0653, e_all=0.0548.

Data

🔍 Search references for FSR 1180 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–	108.88	-9.46	0.324	-1.219	1.835	61.891
Li et al.	2025	108.897	-9.453	0.327	-1.208	1.815	–
Hu & Soubiran	2025	108.859	-9.465	–	–	–	–
Almeida et al.	2025	108.895	-9.447	–	–	–	–
Hunt & Reffert	2024	108.914	-9.443	0.324	-1.219	1.822	67.644
Cavallo et al.	2024	108.859	-9.465	0.327	–	–	–
Hunt & Reffert	2023	108.914	-9.443	0.324	-1.219	1.822	67.644
Almeida et al.	2023	108.886	-9.45	–	–	–	–
Just et al.	2023	108.916	-9.408	–	–	–	–
Jadhav & Subramaniam	2021	108.897	-9.453	–	–	–	–
Dias et al.	2021	108.895	-9.447	0.331	-1.209	1.824	62.183
Cantat-Gaudin et al.	2020	108.897	-9.453	0.327	-1.208	1.815	–
Cantat-Gaudin & Anders	2020	108.897	-9.453	0.327	-1.208	1.815	–
Liu & Pang	2019	108.867	-9.453	0.341	-1.199	1.745	–
Soubiran et al.	2018	108.897	-9.453	–	–	–	62.11
Cantat-Gaudin et al.	2018	108.897	-9.453	0.327	-1.208	1.815	–
Dib et al.	2018	108.922	-9.41	–	–	–	–
Joshi et al.	2016	108.922	-9.41	–	–	–	–
Kharchenko et al.	2016	108.916	-9.408	–	–	–	–
Kharchenko et al.	2013	108.922	-9.41	–	-1.49	-0.21	–
Froebrich et al.	2007	108.925	-9.431	–	–	–	–

💡 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–	2.65	1.18	1.78	473	0.068	504	0.63	0
Li et al.	2025	3.01	1.43	–	427	0.247	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.250⁽⁵⁾	–	–	–
Almeida et al.	2025	2.47	1.60	–	530	–	504	–	–
Hunt & Reffert	2024	2.65	1.18	1.78	462	–	2437⁽¹⁾	–	–
Cavallo et al.	2024	2.69	1.33	–	537	0.320	–	–	–
Hunt & Reffert	2023	2.65	1.18	1.78	462	–	–	–	–
Almeida et al.	2023	2.55	1.59	–	516	-0.115	758⁽¹⁾	0.63	–
Just et al.	2023	–	–	–	473	–	30	–	–
Jadhav & Subramaniam	2021	2.69	1.15	–	550	–	485	–	0⁽¹⁾
Dias et al.	2021	2.47	1.60	–	530	-0.112	–	–	–
Cantat-Gaudin et al.	2020	2.69	1.15	–	550	–	–	–	–
Kounkel et al.	2020	2.89	1.61	–	447	–	–	–	–
Cantat-Gaudin & Anders	2020	2.81	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	692	0.250	–	–	–
Soubiran et al.	2018	2.81	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.81	–	–	–	–	–	–	–
Dib et al.	2018	1.00	–	–	473	–	–	–	–
Joshi et al.	2016	1.00	0.00	–	473	–	–	–	–
Kharchenko et al.	2016	1.00	0.00	–	473	–	–	–	–
Kharchenko et al.	2013	1.00	0.00	–	473	–	–	–	–

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

Visualization

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