C1331 622

(MWSC 2137)

0.20 UTI

0.0

C_N

0.02

C_dens

0.38

C_C3

0.31

C_lit

1.0

C_dup

N₅₀ (P>50% members) 9

Radius (P>50% members) 5.4 [arcmin]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.02 Very 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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C1331 622 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, near the mid-plane, affected by low extinction. It is catalogued as a low-mass, old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~5.71 kpc) differs significantly from the median photometric distance (~1.08 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 Low extinction Low mass Old

Data

🔍 Search references for C1331 622 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–	203.611	-62.353	0.175	-6.959	-1.269	-22.097
Just et al.	2023	203.644	-62.414	–	–	–	–
Kharchenko et al.	2016	203.644	-62.414	–	–	–	–
Dias et al.	2014	203.55	-62.417	–	-1.59	-4.43	-35.0
Kharchenko et al.	2013	203.655	-62.417	–	-7.61	0.93	–
Dias et al.	2002	203.55	-62.417	–	-1.59	-4.43	-35.0

💡 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–	1.08	0.84	–	1778	–	35	–	–
Just et al.	2023	–	–	–	1778	–	35	–	–
Kharchenko et al.	2016	1.08	0.84	–	1778	–	–	–	–
Kharchenko et al.	2013	1.08	0.84	–	1778	–	–	–	–
Dias et al.	2002	0.82	0.71	–	–	–	–	–	–

Visualization

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