UPK 13

N_50

r_50

116

7.4

Summary

UPK 13 is a rich, very dense object of very high C3 quality. It is located at a close distance from the Sun, below the mid-plane. It is well-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
Sim et al. (2019)	282.016	-18.295	–	-1.15	-4.12	–
Cantat-Gaudin et al. (2020)	282.007	-18.281	1.063	-1.131	-4.104	–
Dias et al. (2021)	282.009	-18.289	1.059	-1.134	-4.081	–
Tarricq et al. (2022)	281.989	-18.306	1.062	-1.131	-4.122	–
He et al. (2022)	282.006	-18.284	1.056	-1.127	-4.144	–
Hunt & Reffert (2023)	281.996	-18.286	1.057	-1.132	-4.102	5.5
Cavallo et al. (2024)	282.021	-18.273	1.06	–	–	–
Hunt & Reffert (2024)	281.996	-18.286	1.057	-1.132	-4.102	5.5
Alfonso et al. (2024)	282.049	-18.228	0.954	-0.904	-4.026	–
Almeida et al. (2025)	282.009	-18.289	–	–	–	–

UCC	282.003	-18.277	1.059	-1.135	-4.13	7.379

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
Sim et al. (2019)	`d_pc=915, log(age)=7.9`
Cantat-Gaudin et al. (2020)	`AVNN=0.67, DistPc=950.0, AgeNN=8.25`
Dias et al. (2021)	`Av=0.885, Dist=933, logage=8.44, [Fe/H]=0.205`
Tarricq et al. (2022)	`Dist=930, logAgeNN=8.27`
He et al. (2022)	`A0=1.1, logAge=7.75`
Hunt & Reffert (2023)	`AV50=0.626, diffAV50=0.793, MOD50=9.78, logAge50=8.119`
Cavallo et al. (2024)	`AV50=0.89, dMod50=9.83, logAge50=8.41, [Fe/H]50=0.24`
Hunt & Reffert (2024)	`MassJ=333.805, MassTot=333.805`
Alfonso et al. (2024)	`AV=0.6679, MOD=9.89093, logAge=8.41152, Z=0.20396`
Almeida et al. (2025)	`AV=0.885, Dist=933, logAge=8.44, MassRk=280.8`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 99	86.2	282.0	-18.28	1.06	-1.13	-4.12	6.59	0.0