UPK 445

N_50

r_50

15.2

Summary

UPK 445 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 2 later reported entries.

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Sim et al. (2019)	92.36	-15.019	–	-2.41	1.45	–
Cantat-Gaudin et al. (2020)	92.385	-15.03	1.467	-2.634	1.377	–
Dias et al. (2021)	92.379	-15.068	1.471	-2.634	1.358	45.654
He et al. (2022)	92.395	-15.023	1.481	-2.583	1.399	–
Hunt & Reffert (2023)	92.354	-15.039	1.476	-2.538	1.435	24.959
Cavallo et al. (2024)	92.512	-14.898	1.468	–	–	–
Celli et al. (2024)	92.385	-15.03	–	–	–	–
Hunt & Reffert (2024)	92.354	-15.039	1.476	-2.538	1.435	24.959
Alfonso et al. (2024)	92.273	-15.027	1.451	-2.477	1.433	–
Almeida et al. (2025)	92.379	-15.068	–	–	–	–

UCC	92.393	-15.044	1.475	-2.656	1.385	25.606

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=667, log(age)=7.1`
Cantat-Gaudin et al. (2020)	`AVNN=0.7, DistPc=663.0, AgeNN=7.11`
Dias et al. (2021)	`Av=1.152, Dist=656, logage=7.226, [Fe/H]=-0.109`
He et al. (2022)	`A0=0.4, logAge=6.9`
Hunt & Reffert (2023)	`AV50=0.617, diffAV50=1.131, MOD50=9.102, logAge50=6.866`
Cavallo et al. (2024)	`AV50=0.68, dMod50=9.34, logAge50=6.45, [Fe/H]50=-0.2`
Celli et al. (2024)	`Age=12.9, Mc=116.6`
Hunt & Reffert (2024)	`MassJ=84.7954, MassTot=124.782`
Alfonso et al. (2024)	`AV=0.69962, MOD=9.10972, logAge=7.25506, Z=-0.1091`
Almeida et al. (2025)	`AV=1.152, Dist=656, logAge=7.226, MassRk=158.1`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 446	99.0	92.4	-15.05	1.48	-2.66	1.39	25.75	0.08
CWWDL 14263	40.4	92.36	-15.03	1.48	-2.67	1.36	24.07	0.0