FSR 0815

(MWSC 603)

0.10 UTI

0.0

C_N

0.03

C_dens

0.12

C_C3

0.16

C_lit

1.0

C_dup

N_m (P>50%) 21

Core radius and density 1.4 [pc], 0.2 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.12 Very low quality
C_lit 0.16 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 0815 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by high extinction. It is catalogued as a low-mass, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~4.89 kpc) differs significantly from the median photometric distance (~2.15 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.

Relatively close High extinction Low mass Intermediate age

Data

🔍 Search references for FSR 0815 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–	84.411	31.357	0.204	-0.375	-1.287	–
Just et al.	2023	84.419	31.305	–	–	–	–
Bica et al.	2019	84.428	31.324	–	–	–	–
Kharchenko et al.	2016	84.419	31.305	–	–	–	–
Kharchenko et al.	2013	84.427	31.305	–	1.39	-6.7	–
Kharchenko et al.	2012	84.427	31.305	–	1.39	-6.7	–
Froebrich et al.	2007	84.425	31.324	–	–	–	–
Dias et al.	2002	84.425	31.324	–	1.39	-6.7	–

💡 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–	2.15	3.28	–	452	–	23	–	–
Just et al.	2023	–	–	–	452	–	23	–	–
Kharchenko et al.	2016	2.15	3.28	–	452	–	–	–	–
Kharchenko et al.	2013	2.15	3.28	–	452	–	–	–	–
Kharchenko et al.	2012	2.15	3.28	–	452	–	–	–	–
Dias et al.	2002	2.15	3.28	–	452	–	–	–	–

Visualization

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