FSR 1170

(MWSC 1111)

0.73 UTI

0.67

C_N

1.0

C_dens

0.38

C_C3

0.81

C_lit

1.0

C_dup

N₅₀ (P>50% members) 84

Stellar density (N₅₀/rad) 21.0 [N/pc²]

C3 classification CB

C_N 0.67 Moderately populated
C_dens 1.0 Very dense
C_C3 0.38 Low quality
C_lit 0.81 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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FSR 1170 is a moderately populated, very dense object of low 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, intermediate-age cluster, but with a large variance across recent sources for the distance and age parameters (see Parameters). It is well-studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 147 along with FSR_1173.

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P215, along with FSR_1173.

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for FSR 1170 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–	106.867	-8.87	0.334	-0.682	-0.171	42.608
Almeida et al.	2025	106.87	-8.876	–	–	–	–
Hunt & Reffert	2024	106.872	-8.872	0.34	-0.686	-0.144	42.608
Cavallo et al.	2024	106.856	-8.867	0.345	–	–	–
Hunt & Reffert	2023	106.872	-8.872	0.34	-0.686	-0.144	42.608
Just et al.	2023	106.868	-8.863	–	–	–	–
Dias et al.	2021	106.87	-8.876	0.331	-0.643	-0.201	–
Cantat-Gaudin et al.	2020	106.873	-8.879	0.33	-0.639	-0.213	–
Sánchez et al.	2020	106.862	-8.867	–	-0.541	-0.123	–
Cantat-Gaudin & Anders	2020	106.873	-8.879	0.33	-0.639	-0.213	–
Soubiran et al.	2018	106.873	-8.879	–	–	–	42.84
Cantat-Gaudin et al.	2018	106.873	-8.879	0.33	-0.639	-0.213	–
Kharchenko et al.	2016	106.868	-8.863	–	–	–	–
Kharchenko et al.	2013	106.875	-8.865	–	7.48	-1.65	–
Froebrich et al.	2007	106.862	-8.867	–	–	–	–
Dias et al.	2002	106.862	-8.867	–	0.83	-1.82	–

💡 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–	2.74	2.06	1.98	328	0.013	227	–	–
Liu et al.	2025	10.23	0.93	–	129	–	–	–	–
Almeida et al.	2025	2.69	2.33	–	328	–	227	–	–
Hunt & Reffert	2024	–	–	–	–	–	578⁽¹⁾	–	–
Cavallo et al.	2024	2.88	2.67	–	229	-0.110	–	–	–
Hunt & Reffert	2023	2.54	2.02	1.98	324	–	–	–	–
Just et al.	2023	–	–	–	569	–	192	–	–
Dias et al.	2021	2.69	2.33	–	328	0.136	–	–	–
Cantat-Gaudin et al.	2020	3.10	1.85	–	195	–	–	–	–
Cantat-Gaudin & Anders	2020	2.79	–	–	–	–	–	–	–
Soubiran et al.	2018	2.79	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.79	–	–	–	–	–	–	–
Kharchenko et al.	2016	2.28	2.06	–	569	–	–	–	–
Kharchenko et al.	2013	2.28	2.06	–	569	–	–	–	–
Dias et al.	2002	2.28	2.06	–	569	–	–	–	–

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

Visualization

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