CWNU 3990

0.31 UTI

0.75

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

0.62

C_dup

C3 classification AB

Number of members (P>50%) 112

Radius (P>50% members) 3.0 [arcmin]

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.62 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 3990 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by very high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

Distant Very high extinction Intermediate age

Data

🔍 Search references for CWNU 3990 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	–	237.621	-55.09	0.302	-2.994	-2.607	-39.676
He et al.	2023	237.645	-55.093	0.298	-2.974	-2.608	-40.17

💡 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
He et al.	2023	3.02	8.60	–	100	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 2731	38.4	237.65	-55.09	0.3	-2.97	-2.61	-40.17	0.44

💡 Note: The % column shows the percentage of members that CWNU 3990 shares with each listed object.

Visualization

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