Dias 3

(MWSC 1135)

0.13 UTI

0.0

C_N

0.02

C_dens

0.25

C_C3

0.19

C_lit

1.0

C_dup

N_m (P>50%) 17

Core radius and density 4.4 [pc], 0.08 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.25 Low quality
C_lit 0.19 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Dias 3 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~4.13 kpc) differs significantly from the median photometric distance (~5.95 kpc).

Note: This object shares a very small 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.

Very distant Moderate extinction Massive Intermediate age

Bica et al. (2019)
Web updates in DAML02, some were later removed (2003 to 2010).

Data

🔍 Search references for Dias 3 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–	107.615	-8.441	0.242	-1.141	1.505	83.291
Just et al.	2023	107.589	-8.393	–	–	–	–
Dias et al.	2018	–	–	–	-1.32	0.77	–
Sampedro et al.	2017	107.629	-8.428	–	1.45	-2.28	–
Kharchenko et al.	2016	107.589	-8.393	–	–	–	–
Tadross	2014	107.617	-8.437	–	–	–	–
Dias et al.	2014	107.629	-8.428	–	1.67	-2.33	–
Kharchenko et al.	2013	107.595	-8.395	–	3.99	-1.22	–
Dias et al.	2002	107.629	-8.428	–	1.67	-2.33	–

💡 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–	5.945	1.995	–	305	–	1858	–	–
Just et al.	2023	–	–	–	305	–	1858	–	–
Kharchenko et al.	2016	7.24	1.97	–	305	–	–	–	–
Tadross	2014	4.65	2.02	–	1410	–	–	–	–
Kharchenko et al.	2013	7.24	1.97	–	305	–	–	–	–
Dias et al.	2002	4.65	2.02	–	1413	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 2212	4.0	107.92	-8.25	0.32	-1.17	1.63	61.09	0.05

💡 Note: The % column shows the percentage of members that Dias 3 shares with each listed object.

Visualization

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