FSR 1170

(MWSC 1111)

0.72 UTI

0.67

C_N

1.0

C_dens

0.38

C_C3

0.79

C_lit

1.0

C_dup

C3 classification CB

Number of members (P>50%) 84

Radius (P>50% members) 2.3 [arcmin]

C_N 0.67 Moderately populated
C_dens 1.0 Very dense
C_C3 0.38 Low quality
C_lit 0.79 Well-studied
C_dup 1.0 Unique

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

Overview

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 (see Parameters). It is well-studied in the literature.

Relatively close Moderate extinction 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

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	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	–
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]	Bfr	BSS
Almeida et al.	2025	2.69	2.33	–	328	–	227	–	–
Hunt & Reffert	2024	–	–	–	–	–	578*	–	–
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	–	–	–	–
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	–	–	–	–

💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
(*): indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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💡 Note: How are the galactocentric plots generated? See FAQ.