C1331 622

(MWSC 2137)

0.29 UTI

0.0

C_N

0.01

C_dens

0.38

C_C3

0.54

C_lit

1.0

C_dup

N_m (P>50%) 9

Core radius and density 7.7 [pc], 0.05 [pc^-2]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.38 Low quality
C_lit 0.54 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 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 an old cluster (see Parameters). It is moderately 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 Old

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

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	–	–	–	–
Dias et al.	2018	–	–	–	-5.98	-2.95	–
Dib et al.	2018	203.655	-62.417	–	–	–	–
Sampedro et al.	2017	203.55	-62.417	–	-2.23	-2.9	–
Joshi et al.	2016	203.655	-62.417	–	–	–	–
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	–
Morales et al.	2013	203.55	-62.417	–	–	–	–
Bukowiecki et al.	2011	203.642	-62.458	–	–	–	–
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	0.85	–	1778	–	326	–	–
Just et al.	2023	–	–	–	1778	–	35	–	–
Dib et al.	2018	1.08	–	–	1778	–	–	–	–
Joshi et al.	2016	1.08	0.85	–	1778	–	–	–	–
Kharchenko et al.	2016	1.08	0.85	–	1778	–	–	–	–
Kharchenko et al.	2013	1.08	0.85	–	1778	–	–	–	–
Morales et al.	2013	1.09	–	–	63	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	617	–	–
Bukowiecki et al.	2011	1.10⁽¹⁾	1.23	–	63	–	–	–	–
Dias et al.	2002	0.82	0.73	–	–	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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