UBC 520

N_50

r_50

3.6

Summary

UBC 520 is a poorly populated, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, below the mid-plane. It is moderately studied in the literature.

This object shares a large percentage of members with a later reported entry.

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Castro-Ginard et al. (2020)	186.138	-66.672	0.488	-4.89	-0.099	–
Cantat-Gaudin et al. (2020)	186.083	-66.672	0.492	-4.872	-0.095	–
Dias et al. (2021)	186.112	-66.672	0.481	-4.87	-0.102	–
Hunt & Reffert (2023)	186.073	-66.674	0.51	-4.916	-0.08	–
Cavallo et al. (2024)	186.076	-66.674	0.509	–	–	–
Hunt & Reffert (2024)	186.073	-66.674	0.51	-4.916	-0.08	–
Almeida et al. (2025)	186.112	-66.672	–	–	–	–
Hu & Soubiran (2025)	186.076	-66.674	–	–	–	–

UCC	186.086	-66.672	0.513	-4.909	-0.074	–

Galactocentric position

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

1 2 3

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Fundamental parameters

Reference	Values
Cantat-Gaudin et al. (2020)	`AVNN=1.23, DistPc=1866.0, AgeNN=8.9`
Dias et al. (2021)	`Av=1.614, Dist=1967, logage=8.46, [Fe/H]=0.3`
Hunt & Reffert (2023)	`AV50=1.242, diffAV50=0.49, MOD50=11.339, logAge50=8.63`
Cavallo et al. (2024)	`AV50=1.02, dMod50=11.47, logAge50=9.0, [Fe/H]50=0.53`
Hunt & Reffert (2024)	`MassJ=293.251, MassTot=304.459`
Almeida et al. (2025)	`AV=1.614, Dist=1967, logAge=8.46, MassRk=174.7`
Hu & Soubiran (2025)	`MA22=-0.16, MA23f=-0.26, MZ23=-0.18, MK24=-0.22, MF24=-0.16`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 13314	95.5	186.08	-66.67	0.51	-4.93	-0.06	–	0.05