UPK 394

N_50

r_50

10.1

Summary

UPK 394 is a moderately populated, 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)	78.795	6.282	–	-0.52	-2.03	–
Cantat-Gaudin et al. (2020)	78.808	6.291	1.233	-0.51	-1.975	–
Dias et al. (2021)	78.773	6.303	1.231	-0.505	-1.992	–
Tarricq et al. (2022)	78.802	6.289	1.229	-0.488	-2.029	–
He et al. (2022)	78.793	6.301	1.246	-0.455	-2.017	–
Hunt & Reffert (2023)	78.816	6.242	1.228	-0.463	-2.006	-5.84
Cavallo et al. (2024)	78.876	6.307	1.239	–	–	–
Hunt & Reffert (2024)	78.816	6.242	1.228	-0.463	-2.006	-5.84
Alfonso et al. (2024)	78.817	6.303	1.182	-0.435	-2.039	–
Almeida et al. (2025)	78.773	6.303	–	–	–	–

UCC	78.832	6.302	1.234	-0.481	-2.01	-1.208

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=802, log(age)=7.9`
Cantat-Gaudin et al. (2020)	`AVNN=0.31, DistPc=795.0, AgeNN=8.32`
Dias et al. (2021)	`Av=0.245, Dist=782, logage=8.3, [Fe/H]=-0.012`
Tarricq et al. (2022)	`Dist=778, logAgeNN=8.34`
He et al. (2022)	`A0=0.35, logAge=7.95`
Hunt & Reffert (2023)	`AV50=0.116, diffAV50=0.476, MOD50=9.424, logAge50=8.23`
Cavallo et al. (2024)	`AV50=0.23, dMod50=9.52, logAge50=8.39, [Fe/H]50=0.38`
Hunt & Reffert (2024)	`MassJ=162.379, MassTot=171.370`
Alfonso et al. (2024)	`AV=0.30976, MOD=9.50012, logAge=8.27522, Z=-0.0121`
Almeida et al. (2025)	`AV=0.245, Dist=782, logAge=8.3, MassRk=98.6`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 202	97.6	78.83	6.31	1.23	-0.49	-2.02	-1.21	0.05