FSR 1736

(MWSC 2354)

0.20 UTI

0.0

C_N

0.23

C_dens

0.12

C_C3

0.31

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 21

Radius (P>50% members) 3.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.23 Very loose
C_C3 0.12 Very 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 1736 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, well above the mid-plane, affected by moderate extinction. It is catalogued as an extremely massive, very old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.11 kpc) differs significantly from the median photometric distance (~7.47 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.

Very distant Moderate extinction Extremely massive Very old

Data

🔍 Search references for FSR 1736 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	–	241.963	-39.395	0.243	-3.078	-2.791	-31.28
Just et al.	2023	241.97	-39.349	–	–	–	–
Bica et al.	2019	241.989	-39.36	–	–	–	–
Kharchenko et al.	2016	241.97	-39.349	–	–	–	–
Kharchenko et al.	2013	241.98	-39.35	–	-3.14	-2.63	–
Froebrich et al.	2007	241.979	-39.359	–	–	–	–

💡 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	–	–	–	5012	–	51523	–	–
Kharchenko et al.	2016	7.47	1.29	–	5012	–	–	–	–
Kharchenko et al.	2013	7.47	1.29	–	5012	–	–	–	–

Visualization

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