UPK 166

N_50

r_50

386

32.9

Summary

UPK 166 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 small 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)	339.071	46.958	–	-0.92	-3.26	–
Cantat-Gaudin et al. (2020)	339.203	46.927	1.508	-0.907	-3.229	–
Dias et al. (2021)	339.199	46.905	1.509	-0.905	-3.231	-7.988
He et al. (2022)	339.075	46.965	1.5	-0.908	-3.279	–
Hunt & Reffert (2023)	339.203	47.008	1.521	-0.937	-3.302	-10.26
Cavallo et al. (2024)	338.973	46.899	1.518	–	–	–
Celli et al. (2024)	339.203	46.927	–	–	–	–
Hunt & Reffert (2024)	339.203	47.008	1.521	-0.937	-3.302	-10.26
Alfonso et al. (2024)	339.003	46.9	1.486	-0.9	-3.3	–
Almeida et al. (2025)	339.199	46.905	–	–	–	–

UCC	339.077	46.908	1.517	-0.931	-3.299	-11.085

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=651, log(age)=7.6`
Cantat-Gaudin et al. (2020)	`AVNN=0.27, DistPc=658.0, AgeNN=7.43`
Dias et al. (2021)	`Av=0.437, Dist=625, logage=7.657, [Fe/H]=-0.001`
He et al. (2022)	`A0=0.65, logAge=7.5`
Hunt & Reffert (2023)	`AV50=0.183, diffAV50=0.546, MOD50=9.033, logAge50=7.213`
Cavallo et al. (2024)	`AV50=0.62, dMod50=9.18, logAge50=6.98, [Fe/H]50=-0.06`
Celli et al. (2024)	`Age=26.9, Mc=434.2`
Hunt & Reffert (2024)	`MassJ=248.640, MassTot=394.893`
Alfonso et al. (2024)	`AV=0.27032, MOD=9.08912, logAge=7.48805, Z=-0.0002`
Almeida et al. (2025)	`AV=0.437, Dist=625, logAge=7.657, MassRk=430.7`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14299	16.1	339.13	47.02	1.51	-0.9	-3.25	-12.89	0.0