FSR 0178

(MWSC 3285; MWSC 3284)

0.12 UTI

0.0

C_N

0.01

C_dens

0.12

C_C3

0.23

C_lit

1.0

C_dup

N_m (P>50%) 18

Core radius and density 2.2 [pc], 0.06 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.12 Very low quality
C_lit 0.23 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 0178 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, old cluster (see Parameters). It is rarely 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 Old

Data

🔍 Search references for FSR 0178 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–	303.307	29.109	0.242	-2.578	-5.657	–
Just et al.	2023	303.286	29.11	–	–	–	–
Bica et al.	2019	303.282	29.123	–	–	–	–
Dias et al.	2018	–	–	–	-3.1	-4.75	–
Sampedro et al.	2017	303.283	29.123	–	-0.61	-4.59	–
Kharchenko et al.	2016	303.286	29.11	–	–	–	–
Dias et al.	2014	303.279	29.12	–	-0.86	-4.51	–
Kharchenko et al.	2013	303.292	29.113	–	-2.71	-4.44	–
Froebrich et al.	2007	303.279	29.12	–	–	–	–
Dias et al.	2002	303.283	29.123	–	-0.89	-4.21	–

💡 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–	3.81	3.87	–	1514	–	1019	–	–
Just et al.	2023	–	–	–	1514	–	1019	–	–
Kharchenko et al.	2016	3.81	3.87	–	1514	–	–	–	–
Kharchenko et al.	2013	3.81	3.87	–	1514	–	–	–	–
Dias et al.	2002	3.70	4.23	–	1514	–	–	–	–

Visualization

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