UPK 82

N_50

r_50

140

27.7

Summary

UPK 82 is a rich, very dense object of very high C3 quality. It is located at a close distance from the Sun, near 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)	298.291	26.394	–	2.34	-2.13	–
Cantat-Gaudin et al. (2020)	298.285	26.379	1.842	2.358	-2.138	–
Dias et al. (2021)	298.264	26.397	1.836	2.37	-2.139	-12.417
Tarricq et al. (2022)	298.15	26.172	1.825	2.292	-2.135	–
He et al. (2022)	298.378	26.385	1.845	2.319	-2.153	–
Hunt & Reffert (2023)	298.464	26.202	1.822	2.278	-2.169	-16.125
Cavallo et al. (2024)	298.243	26.412	1.828	–	–	–
Hunt & Reffert (2024)	298.464	26.202	1.822	2.278	-2.169	-16.125
Alfonso et al. (2024)	298.102	26.438	1.777	2.12	-2.206	–
Almeida et al. (2025)	298.264	26.397	–	–	–	–

UCC	298.354	26.412	1.838	2.297	-2.152	-17.006

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=537, log(age)=7.9`
Cantat-Gaudin et al. (2020)	`AVNN=0.38, DistPc=554.0, AgeNN=7.91`
Dias et al. (2021)	`Av=0.413, Dist=534, logage=8.177, [Fe/H]=0.034`
Tarricq et al. (2022)	`Dist=546, logAgeNN=7.93`
He et al. (2022)	`A0=0.7, logAge=7.8`
Hunt & Reffert (2023)	`AV50=0.177, diffAV50=0.697, MOD50=8.602, logAge50=7.892`
Cavallo et al. (2024)	`AV50=0.84, dMod50=8.7, logAge50=7.58, [Fe/H]50=-0.2`
Hunt & Reffert (2024)	`MassJ=152.664, MassTot=194.709`
Alfonso et al. (2024)	`AV=0.37910, MOD=8.72011, logAge=7.92154, Z=0.03374`
Almeida et al. (2025)	`AV=0.413, Dist=534, logAge=8.177, MassRk=156.4`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FoF 2417	78.6	298.32	26.4	1.83	2.32	-2.16	-16.28	0.0
CWWDL 14618	18.6	298.49	26.21	1.83	2.36	-2.21	-12.48	0.0