DC 4

(MWSC 1010)

0.26 UTI

0.0

C_N

0.26

C_dens

0.25

C_C3

0.4

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 1.3 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.26 Loose
C_C3 0.25 Low quality
C_lit 0.4 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

DC 4 is a sparse, loose object of low C3 quality. Its parallax locates it at a large^* distance, well below the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~9.02 kpc) differs significantly from the median photometric distance (~2.30 kpc).

Note: This object shares a significant 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 Intermediate age

Data

🔍 Search references for DC 4 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	103.514	-13.566	0.111	-0.358	0.743	96.702
Just et al.	2023	103.517	-13.554	–	–	–	–
Bica et al.	2019	103.516	-13.567	–	–	–	–
Kharchenko et al.	2016	103.517	-13.554	–	–	–	–
Kharchenko et al.	2013	103.522	-13.555	–	4.88	-3.34	–
Bukowiecki et al.	2011	103.517	-13.579	–	–	–	–
Dias et al.	2002	103.513	-13.568	–	4.88	-3.34	–

💡 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–	2.3	1.81	–	501	–	100	–	–
Just et al.	2023	–	–	–	501	–	41	–	–
Kharchenko et al.	2016	2.30	1.81	–	501	–	–	–	–
Kharchenko et al.	2013	2.30	1.81	–	501	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	160	–	–
Bukowiecki et al.	2011	1.51⁽¹⁾	1.46	–	316	–	–	–	–
Dias et al.	2002	2.30	1.81	–	501	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3590	68.0	103.51	-13.57	0.06	-0.34	0.74	–	0.14

💡 Note: The % column shows the percentage of members that DC 4 shares with each listed object.

Visualization

ℹ️