FSR 1653

(MWSC 2134)

0.18 UTI

0.0

C_N

0.03

C_dens

0.25

C_C3

0.31

C_lit

1.0

C_dup

C3 classification DB

Number of members (P>50%) 13

Radius (P>50% members) 7.7 [arcmin]

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.25 Low quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

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

Overview

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FSR 1653 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Distant High extinction Massive Intermediate age

Data

🔍 Search references for FSR 1653 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	–	203.433	-63.07	0.25	-6.579	-1.881	-47.231
Just et al.	2023	203.449	-63.037	–	–	–	–
Bica et al.	2019	203.463	-63.027	–	–	–	–
Kharchenko et al.	2016	203.449	-63.037	–	–	–	–
Kharchenko et al.	2013	203.46	-63.04	–	-9.78	-0.96	–
Froebrich et al.	2007	203.458	-63.031	–	–	–	–

💡 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
Just et al.	2023	–	–	–	708	–	1968	–	–
Kharchenko et al.	2016	3.26	3.23	–	708	–	–	–	–
Kharchenko et al.	2013	3.26	3.23	–	708	–	–	–	–

Visualization

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