UBC 258

N_50

r_50

4.2

Summary

UBC 258 is a poorly populated, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, near 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)	158.88	-57.609	0.39	-7.227	3.591	–
Cantat-Gaudin et al. (2020)	158.917	-57.615	0.393	-7.237	3.609	–
Dias et al. (2021)	158.88	-57.604	0.383	-7.229	3.573	–
Hunt & Reffert (2023)	159.055	-57.626	0.386	-7.228	3.683	–
Cavallo et al. (2024)	159.011	-57.623	0.387	–	–	–
Hunt & Reffert (2024)	159.055	-57.626	0.386	-7.228	3.683	–
Almeida et al. (2025)	158.88	-57.604	–	–	–	–

UCC	159.001	-57.628	0.387	-7.232	3.656	–

Galactocentric position

How are the galactocentric plots generated?

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Estimated members

1 2 3

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Fundamental parameters

Reference	Values
Cantat-Gaudin et al. (2020)	`AVNN=0.55, DistPc=2419.0, AgeNN=7.61`
Dias et al. (2021)	`Av=0.824, Dist=2406, logage=7.403, [Fe/H]=0.197`
Hunt & Reffert (2023)	`AV50=0.708, diffAV50=1.072, MOD50=11.866, logAge50=7.496`
Cavallo et al. (2024)	`AV50=1.1, dMod50=11.95, logAge50=7.5, [Fe/H]50=0.09`
Hunt & Reffert (2024)	`MassJ=377.063, MassTot=377.063`
Almeida et al. (2025)	`AV=0.824, Dist=2406, logAge=7.403, MassRk=819.2`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 2181	78.7	159.03	-57.63	0.39	-7.23	3.68	19.39	0.08