FSR 1481

(MWSC 1737)

0.07 UTI

0.0

C_N

0.1

C_dens

0.12

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 23

Core radius and density 1.4 [pc], 0.5 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.1 Very loose
C_C3 0.12 Very low quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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FSR 1481 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, old cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~2.28 kpc) differs significantly from the median photometric distance (~4.10 kpc).

⚠️ 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 Moderate extinction Massive Old

Data

🔍 Search references for FSR 1481 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–	149.765	-43.908	0.439	-8.848	4.962	–
Just et al.	2023	149.83	-43.904	–	–	–	–
Kharchenko et al.	2016	149.83	-43.904	–	–	–	–
Kharchenko et al.	2013	149.835	-43.908	–	-12.95	3.85	–
Froebrich et al.	2007	149.854	-43.908	–	–	–	–

💡 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–	4.1	1.31	–	1318	–	2655	–	–
Just et al.	2023	–	–	–	1318	–	2655	–	–
Kharchenko et al.	2016	4.10	1.31	–	1318	–	–	–	–
Kharchenko et al.	2013	4.10	1.31	–	1318	–	–	–	–

Visualization

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