FSR 0578

0.22 UTI

0.64

C_N

0.07

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 79

Core radius and density 5.9 [pc], 0.3 [pc^-2]

C3 classification BC

C_N 0.64 Moderately populated
C_dens 0.07 Very loose
C_C3 0.38 Low quality
C_lit 0.0 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 0578 is a moderately populated, 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 an intermediate-age cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 19 years.

Note: This object shares a small percentage of members with a later reported entry. See table with shared members information.

⚠️ 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.

Relatively close High extinction Intermediate age

Data

🔍 Search references for FSR 0578 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–	34.986	61.034	0.444	-1.108	-0.294	-65.663
Froebrich et al.	2007	35.042	61.109	–	–	–	–
Dias et al.	2002	35.042	61.109	–	2.22	-2.11	–

💡 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–	2.67	4.6	–	966	–	–	–	–
Dias et al.	2002	2.67	4.60	–	966	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 346	10.1	34.52	61.15	0.48	-0.82	-0.24	-59.52	0.23

💡 Note: The % column shows the percentage of members that FSR 0578 shares with each listed object.

Visualization

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