CWNU 1636

0.18 UTI

0.27

C_N

0.26

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 27

Core radius and density 1.4 [pc], 1.3 [pc^-2]

C3 classification BC

C_N 0.27 Poorly populated
C_dens 0.26 Loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 1636 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature.

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

⚠️ 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 Moderate extinction Young

Data

🔍 Search references for CWNU 1636 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–	330.254	61.194	0.631	-2.635	-2.121	-33.831
He et al.	2023	330.238	61.182	0.627	-2.627	-2.118	-31.73

💡 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–	1.51	2.05	–	50	–	–	–	–
He et al.	2023	1.51	2.05	–	50	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 6979	92.6	330.25	61.19	0.63	-2.64	-2.13	-33.83	0.0

💡 Note: The % column shows the percentage of members that CWNU 1636 shares with each listed object.

Visualization

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