COIN-Gaia 18

UTI: UCC Trust Index C_N C_dens C_C3 C_lit C_dup 0.56 1.0 0.75 0.75 1.0
C3	N_50	r_50
AB	61	10.9

Summary

COIN-Gaia 18 is a moderately populated, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, near the mid-plane. It is well-studied in the literature.

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Cantat-Gaudin et al. (2019)	78.408	35.498	0.95	0.77	-4.92	–
Cantat-Gaudin et al. (2020)	78.408	35.498	0.953	0.767	-4.955	–
Dias et al. (2021)	78.46	35.494	0.95	0.762	-4.943	–
He et al. (2022)	78.363	35.498	0.969	0.738	-4.937	–
Hunt & Reffert (2023)	78.403	35.48	0.968	0.705	-4.918	1.454
Cavallo et al. (2024)	78.407	35.483	0.967	–	–	–
Hunt & Reffert (2024)	78.403	35.48	0.968	0.705	-4.918	1.454
Almeida et al. (2025)	78.46	35.494	–	–	–	–
UCC	78.409	35.503	0.968	0.719	-4.944	3.977

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=1018
Cantat-Gaudin et al. (2020)	AVNN=0.85, DistPc=1027.0, AgeNN=8.25
Dias et al. (2021)	Av=1.089, Dist=920, logage=8.201, [Fe/H]=-0.101
Tarricq et al. (2022)	Dist=992, logAgeNN=8.24
He et al. (2022)	A0=1.0, logAge=8.25
Hunt & Reffert (2023)	AV50=0.764, diffAV50=0.636, MOD50=9.93, logAge50=8.428
Cavallo et al. (2024)	AV50=0.86, dMod50=10.02, logAge50=8.46, [Fe/H]50=0.4
Hunt & Reffert (2024)	MassJ=214.415, MassTot=214.415
Almeida et al. (2025)	AV=1.089, Dist=920, logAge=8.201, MassRk=143.6

Search coordinates in Bayestar19

Cluster region map