CWNU 3870

0.32 UTI

0.74

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

0.63

C_dup

C3 classification AB

Number of members (P>50%) 98

Radius (P>50% members) 2.4 [arcmin]

C_N 0.74 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.63 Likely unique

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

Overview

ℹ️

CWNU 3870 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by very high extinction. It is catalogued as an old cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~3.48 kpc) differs significantly from the median photometric distance (~5.50 kpc).

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.

Very distant Very high extinction Old

Data

🔍 Search references for CWNU 3870 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	267.989	-24.51	0.287	-0.201	-0.832	-29.333
He et al.	2023	267.992	-24.518	0.3	-0.226	-0.831	-4.22

💡 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	5.50	6.20	–	1585	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Ryu 577	36.7	268.0	-24.52	0.26	-0.26	-0.87	-2.96	0.49

💡 Note: The % column shows the percentage of members that CWNU 3870 shares with each listed object.

Visualization

ℹ️