COIN-Gaia 38

N_50

r_50

132

8.3

Summary

COIN-Gaia 38 is a rich, very dense object of high C3 quality. It is located at a relatively 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
Cantat-Gaudin et al. (2019)	51.472	51.072	0.79	2.03	-6.82	–
Cantat-Gaudin et al. (2020)	51.472	51.072	0.793	2.032	-6.785	–
Dias et al. (2021)	51.448	51.085	0.792	2.059	-6.789	–
Tarricq et al. (2022)	51.456	51.073	0.846	2.003	-6.862	–
He et al. (2022)	51.464	51.07	0.849	1.993	-6.856	–
Hunt & Reffert (2023)	51.471	51.076	0.846	2.018	-6.829	-3.002
Cavallo et al. (2024)	51.47	51.076	0.848	–	–	–
Hunt & Reffert (2024)	51.471	51.076	0.846	2.018	-6.829	-3.002
Almeida et al. (2025)	51.448	51.085	–	–	–	–

UCC	51.471	51.075	0.847	1.998	-6.864	-9.13

Galactocentric position

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

1 2 3

Explore data in Colab

Fundamental parameters

Reference	Values
Cantat-Gaudin et al. (2019)	`d=1217`
Cantat-Gaudin et al. (2020)	`AVNN=1.56, DistPc=1274.0, AgeNN=8.43`
Dias et al. (2021)	`Av=2.146, Dist=1133, logage=8.197, [Fe/H]=0.245`
Tarricq et al. (2022)	`Dist=1237, logAgeNN=8.44`
He et al. (2022)	`A0=2.45, logAge=8.45`
Hunt & Reffert (2023)	`AV50=2.057, diffAV50=2.143, MOD50=10.287, logAge50=8.535`
Cavallo et al. (2024)	`AV50=2.18, dMod50=10.46, logAge50=8.48, [Fe/H]50=0.25`
Hunt & Reffert (2024)	`MassJ=514.864, MassTot=605.119`
Almeida et al. (2025)	`AV=2.146, Dist=1133, logAge=8.197, MassRk=300.0`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 50	97.7	51.47	51.07	0.85	2.01	-6.86	-8.6	0.03
CWWDL 14112	84.8	51.47	51.07	0.85	2.01	-6.86	-8.6	0.0