Dias 8

(MWSC 3195)

0.11 UTI

0.0

C_N

0.02

C_dens

0.12

C_C3

0.19

C_lit

1.0

C_dup

N_m (P>50%) 14

Core radius and density 4.1 [pc], 0.1 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.12 Very 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 8 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 7 years.

(*): The parallax distance estimate (~3.44 kpc) differs significantly from the median photometric distance (~2.23 kpc).

⚠️ 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 Low extinction Old

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

Data

🔍 Search references for Dias 8 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–	298.011	11.611	0.291	-4.83	-6.338	–
Bica et al.	2019	298.035	11.634	–	–	–	–
Dias et al.	2018	–	–	–	-2.01	-3.77	–
Loktin & Popova	2017	298.035	11.628	–	-1.054	-3.214	–
Sampedro et al.	2017	298.025	11.634	–	-3.65	-3.39	–
Tadross	2014	298.029	11.632	–	–	–	–
Dias et al.	2014	298.025	11.634	–	-3.36	-3.03	–
Bukowiecki et al.	2011	298.046	11.626	–	–	–	–
Dias et al.	2002	298.025	11.634	–	-2.56	-3.28	–

💡 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–	2.235	0.95	–	2240	–	–	–	–
Loktin & Popova	2017	2.25	0.20	–	6310	–	–	–	–
Tadross	2014	2.22	0.95	–	2240	–	–	–	–
Bukowiecki et al.	2011	2.81⁽¹⁾	1.55	–	2239	–	–	–	–
Dias et al.	2002	2.22	0.95	–	2239	–	–	–	–

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

Visualization

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