FSR 0839

(Koposov 41; MWSC 713)

0.38 UTI

0.58

C_N

0.33

C_dens

0.38

C_C3

0.31

C_lit

1.0

C_dup

C3 classification CB

Number of members (P>50%) 67

Radius (P>50% members) 5.3 [arcmin]

C_N 0.58 Moderately populated
C_dens 0.33 Loose
C_C3 0.38 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 0839 is a moderately populated, loose object of low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.13 kpc) differs significantly from the median photometric distance (~2.25 kpc).

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

Relatively close High extinction Intermediate age

Data

🔍 Search references for FSR 0839 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	–	90.963	30.259	0.242	0.195	-1.036	16.677
Just et al.	2023	91.003	30.271	–	–	–	–
Kharchenko et al.	2016	91.003	30.271	–	–	–	–
Kharchenko et al.	2013	91.012	30.27	–	1.65	-3.93	–
Glushkova et al.	2010	97.742	30.261	–	–	–	–
Froebrich et al.	2007	90.996	30.259	–	–	–	–

💡 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	–	–	–	724	–	80	–	–
Kharchenko et al.	2016	2.25	3.23	–	724	–	–	–	–
Kharchenko et al.	2013	2.25	3.23	–	724	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 4733	67.2	90.92	30.24	0.22	0.25	-1.05	24.8	0.07

💡 Note: The % column shows the percentage of members that FSR 0839 shares with each listed object.

Visualization

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