UBC 307

N_50

r_50

143

3.1

Summary

UBC 307 is a rich, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, below the mid-plane. It is moderately studied in the literature.

This object shares a moderate 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)	239.429	-57.26	0.327	-2.003	-2.631	–
Cantat-Gaudin et al. (2020)	239.415	-57.265	0.321	-1.999	-2.644	–
Hunt & Reffert (2023)	239.416	-57.271	0.324	-2.017	-2.654	-21.999
Cavallo et al. (2024)	239.418	-57.254	0.327	–	–	–
Hunt & Reffert (2024)	239.416	-57.271	0.324	-2.017	-2.654	-21.999
Hu & Soubiran (2025)	239.418	-57.254	–	–	–	–

UCC	239.412	-57.267	0.332	-2.007	-2.645	-16.19

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=1.39, DistPc=2747.0, AgeNN=9.06`
Hunt & Reffert (2023)	`AV50=1.842, diffAV50=1.257, MOD50=12.204, logAge50=8.663`
Cavallo et al. (2024)	`AV50=1.76, dMod50=11.7, logAge50=9.07, [Fe/H]50=-0.01`
Hunt & Reffert (2024)	`MassJ=1686.08, MassTot=1717.18`
Hu & Soubiran (2025)	`MA22=-0.13, MA23f=-0.12, MA23g=0.18, MZ23=0.07, MK24=-0.12, MF24=-0.07`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 540	44.8	239.41	-57.27	0.34	-1.99	-2.65	-16.12	0.0