UBC 169

0.75 UTI

0.47

C_N

1.0

C_dens

1.0

C_C3

0.65

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 47

Radius (P>50% members) 5.6 [arcmin]

C_N 0.47 Poorly populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.65 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UBC 169 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 169 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	–	342.633	49.492	0.695	-3.967	-3.383	-29.598
Li et al.	2025	342.627	49.494	0.704	-4.009	-3.378	–
Almeida et al.	2025	342.655	49.496	–	–	–	–
Zhang et al.	2024	342.614	49.491	–	–	–	–
Hunt & Reffert	2024	342.614	49.491	0.692	-3.98	-3.385	-28.21
Cavallo et al.	2024	342.649	49.49	0.693	–	–	–
Hunt & Reffert	2023	342.614	49.491	0.692	-3.98	-3.385	-28.21
Almeida et al.	2023	342.627	49.494	–	–	–	–
Tarricq et al.	2022	342.662	49.494	0.684	-3.963	-3.393	–
Dias et al.	2021	342.655	49.496	0.691	-4.008	-3.356	-29.614
Cantat-Gaudin et al.	2020	342.627	49.494	0.704	-4.009	-3.378	–
Castro-Ginard et al.	2020	342.652	49.486	0.7	-4.033	-3.377	–

💡 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]	Bfr	BSS
Li et al.	2025	1.33	0.46	–	349	-0.062	–	–	–
Almeida et al.	2025	1.33	0.56	–	307	–	144	–	–
Zhang et al.	2024	–	–	–	–	-0.091*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	176*	–	–
Cavallo et al.	2024	1.35	0.42	–	355	0.260	–	–	–
Hunt & Reffert	2023	1.38	0.28	0.52	501	–	–	–	–
Almeida et al.	2023	1.37	0.59	–	299	-0.121	136*	0.58	–
Tarricq et al.	2022	1.30	–	–	302	–	–	–	–
Dias et al.	2021	1.33	0.56	–	307	-0.100	–	–	–
Cantat-Gaudin et al.	2020	1.35	0.26	–	295	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 13287	72.3	342.65	49.49	0.7	-3.96	-3.39	-29.46	0.0

💡 Note: The % column shows the percentage of members that UBC 169 shares with each listed object.

Visualization

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