UPK 508

N_50

r_50

8.6

Summary

UPK 508 is a poorly populated, very dense object of very high C3 quality. It is located at a close distance from the Sun, above the mid-plane. It is moderately studied in the literature.

This object shares a large percentage of members with 2 later reported entries.

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Sim et al. (2019)	135.752	-34.942	–	-10.58	6.25	–
Cantat-Gaudin et al. (2020)	135.775	-34.942	1.178	-10.558	6.235	–
Dias et al. (2021)	135.791	-34.937	1.172	-10.56	6.238	28.042
Tarricq et al. (2022)	135.768	-34.923	1.187	-10.526	6.304	–
He et al. (2022)	135.788	-34.977	1.191	-10.543	6.304	–
Hunt & Reffert (2023)	135.754	-34.945	1.2	-10.485	6.319	23.644
Cavallo et al. (2024)	135.754	-34.957	1.2	–	–	–
Hunt & Reffert (2024)	135.754	-34.945	1.2	-10.485	6.319	23.644
Alfonso et al. (2024)	135.828	-35.01	1.146	-10.499	6.248	–
Almeida et al. (2025)	135.791	-34.937	–	–	–	–

UCC	135.768	-34.942	1.191	-10.536	6.304	24.114

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
Sim et al. (2019)	`d_pc=830, log(age)=8.6`
Cantat-Gaudin et al. (2020)	`AVNN=0.65, DistPc=831.0, AgeNN=8.0`
Dias et al. (2021)	`Av=0.697, Dist=821, logage=8.618, [Fe/H]=0.244`
Tarricq et al. (2022)	`Dist=815, logAgeNN=8.06`
He et al. (2022)	`A0=0.95, logAge=8.3`
Hunt & Reffert (2023)	`AV50=0.626, diffAV50=0.264, MOD50=9.488, logAge50=8.24`
Cavallo et al. (2024)	`AV50=0.61, dMod50=9.54, logAge50=8.64, [Fe/H]50=0.38`
Hunt & Reffert (2024)	`MassJ=66.8914, MassTot=95.9373`
Alfonso et al. (2024)	`AV=0.64891, MOD=9.60061, logAge=8.34180, Z=0.24334`
Almeida et al. (2025)	`AV=0.697, Dist=821, logAge=8.618, MassRk=83.3`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14250	100.0	135.78	-34.95	1.2	-10.54	6.3	24.73	0.14
UBC 477	71.4	135.77	-34.95	1.19	-10.54	6.32	24.45	0.0