ASCC 123

(MWSC 3654; OCSN 134)

N_50

r_50

65.2

Summary

ASCC 123 is a moderately populated, dense object of very high C3 quality. It is located at a very close distance from the Sun, near the mid-plane. It is well-studied in the literature.

This object shares a significant percentage of members with a later reported entry.

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Dias et al. (2002)	340.65	54.26	–	12.55	-1.03	-6.46
Piskunov et al. (2008)	340.642	54.256	–	–	–	–
Cantat-Gaudin et al. (2018)	340.299	53.986	4.262	12.093	-1.407	–
Bica et al. (2019)	340.657	54.261	–	–	–	–
Soubiran et al. (2018)	340.299	53.986	–	–	–	-2.49
Cantat-Gaudin et al. (2020)	340.299	53.986	4.262	12.093	-1.407	–
Dias et al. (2021)	340.223	54.174	4.287	12.309	-1.553	-3.225
He et al. (2022)	340.612	54.11	4.308	12.345	-1.525	–
Qin et al. (2023)	340.56	53.96	4.24	11.95	-1.25	-4.13
Alfonso et al. (2024)	353.262	52.937	2.226	7.956	-2.345	–
Almeida et al. (2025)	340.223	54.174	–	–	–	–

UCC	340.06	54.113	4.3	12.249	-1.482	-4.992

Galactocentric position

How are the galactocentric plots generated?

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Estimated members

1 2

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Fundamental parameters

Reference	Values
Dias et al. (2002)	`E(B-V)=0.1, Dist=250.0, Age=8.41`
Piskunov et al. (2008)	`E(B-V)=0.1, Dist=250, logt=8.41, logMA=2.669`
Cantat-Gaudin et al. (2018)	`dmode=233.1`
Soubiran et al. (2018)	`dmode=233.1`
Cantat-Gaudin et al. (2020)	`AVNN=0.0, DistPc=229.0, AgeNN=7.65`
Dias et al. (2021)	`Av=0.306, Dist=233, logage=7.793, [Fe/H]=-0.006`
He et al. (2022)	`A0=0.5, logAge=7.7`
Qin et al. (2023)	`E(B-V)=0.2, m-M=7.39, logt=7.85`
Alfonso et al. (2024)	`AV=0.00038, MOD=6.81101, logAge=7.87478, Z=-0.0076`
Almeida et al. (2025)	`AV=0.306, Dist=233, logAge=7.793, MassRk=43.5`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 117	56.3	340.81	53.94	4.32	12.33	-1.63	-4.29	0.0