Dias 165

0.05 UTI

0.0

C_N

0.02

C_dens

0.25

C_C3

0.0

C_lit

0.96

C_dup

N₅₀ (P>50% members) 15

Stellar density (N₅₀/rad) 0.1 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 0.96 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Dias 165 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very large^* distance, well below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~11.44 kpc) differs significantly from the median photometric distance (~7.92 kpc).

Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.96) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Very distant Low extinction Near-solar metallicity Old

Data

🔍 Search references for Dias 165 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–	117.651	-42.971	0.087	-1.395	2.715	–
Dias et al.	2026	117.651	-42.969	0.098	-1.371	2.704	103.527

💡 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–	7.92	0.57	–	3076	-0.106	–	–	–
Dias et al.	2026	7.92	0.57	–	3076	-0.106	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CKCWDM 18805	4.0	117.52	-42.99	0.13	-1.59	3.01	62.4	0.03

💡 Note: The % column shows the percentage of members that Dias 165 shares with each listed object.

Visualization

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