FSR 0975

0.76 UTI

0.62

C_N

1.0

C_dens

0.75

C_C3

0.7

C_lit

1.0

C_dup

N₅₀ (P>50% members) 75

Stellar density (N₅₀/rad) 5.5 [N/pc²]

C3 classification AB

C_N 0.62 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.7 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 0975 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

Distant Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for FSR 0975 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–	100.007	13.313	0.182	0.171	-0.822	63.263
Hu & Soubiran	2025	100.004	13.317	–	–	–	–
Zhang et al.	2024	100.006	13.311	–	–	–	–
Hunt & Reffert	2024	100.006	13.311	0.18	0.163	-0.798	35.367
Cavallo et al.	2024	100.004	13.317	0.182	–	–	–
Hunt & Reffert	2023	100.006	13.311	0.18	0.163	-0.798	35.367
Cantat-Gaudin et al.	2020	100.01	13.31	0.173	0.166	-0.817	–
Zhong et al.	2020	100.01	13.31	–	0.166	-0.817	35.1
Cantat-Gaudin & Anders	2020	100.01	13.31	0.173	0.166	-0.817	–
Bica et al.	2019	100.001	13.304	–	–	–	–
Cantat-Gaudin et al.	2018	100.01	13.31	0.173	0.166	-0.817	–
Dias et al.	2014	100.0	13.299	–	2.11	2.86	–
Froebrich et al.	2007	100.0	13.299	–	–	–	–
Dias et al.	2002	100.0	13.299	–	2.11	2.86	–

💡 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–	4.61	0.9	1.89	627	-0.100	559	–	–
Hu & Soubiran	2025	–	–	–	–	-0.200⁽⁵⁾	–	–	–
Zhang et al.	2024	–	–	–	–	-0.302⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	559⁽¹⁾	–	–
Cavallo et al.	2024	4.51	0.72	–	692	0.570	–	–	–
Hunt & Reffert	2023	4.59	1.08	1.89	562	–	–	–	–
Zhong et al.	2020	0.00	0.00	–	0	0.000	–	–	–
Cantat-Gaudin & Anders	2020	4.96	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	4.96	–	–	–	–	–	–	–
Dias et al.	2002	4.63	1.68	–	1259	–	–	–	–

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

Visualization

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