Dias 17

(UFMG 102)

0.13 UTI

0.0

C_N

0.14

C_dens

0.5

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 0.7 [N/pc²]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.14 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.0 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 17 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.

⚠️ 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.

Distant Moderate extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for Dias 17 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–	66.547	53.42	0.252	0.052	-1.009	-60.949
Ferreira et al.	2026	66.541	53.429	0.271	0.073	-0.999	–
Dias & Monteiro	2025	66.558	53.413	0.227	0.108	-1.044	–

💡 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–	3.515	2.535	–	210	-0.295	–	–	–
Ferreira et al.	2026	3.89	2.59	–	251	–	–	–	–
Dias & Monteiro	2025	3.14	2.48	–	168	-0.295	–	–	–

Visualization

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