Toepler 1

N_50

r_50

1.7

Summary

Toepler 1 is a moderately populated, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, above the mid-plane. It is well-studied in the literature.

This object shares a significant percentage of members with 2 later reported entries.

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Dias et al. (2002)	300.325	33.62	–	-3.49	-7.96	–
Kronberger et al. (2006)	300.323	33.615	–	–	–	–
Kharchenko et al. (2012)	300.322	33.615	–	-2.77	-0.5	–
Cantat-Gaudin et al. (2018)	300.318	33.615	0.252	-2.349	-5.081	–
Soubiran et al. (2018)	300.318	33.615	–	–	–	-3.27
Cantat-Gaudin et al. (2020)	300.318	33.615	0.252	-2.349	-5.081	–
Dias et al. (2021)	300.319	33.615	0.252	-2.355	-5.079	–
Hunt & Reffert (2023)	300.323	33.613	0.279	-2.349	-5.07	-4.262
Cavallo et al. (2024)	300.325	33.617	0.278	–	–	–
Hunt & Reffert (2024)	300.323	33.613	0.279	-2.349	-5.07	-4.262
Almeida et al. (2025)	300.319	33.615	–	–	–	–

UCC	300.321	33.613	0.277	-2.345	-5.077	-3.384

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
Dias et al. (2002)	`E(B-V)=0.65, Dist=2793.0, Age=7.85`
Kharchenko et al. (2012)	`e_bv=0.625, distance=2088, log_age=8.655`
Cantat-Gaudin et al. (2018)	`dmode=3558.0`
Soubiran et al. (2018)	`dmode=3558.0`
Cantat-Gaudin et al. (2020)	`AVNN=1.93, DistPc=3454.0, AgeNN=7.81`
Dias et al. (2021)	`Av=2.216, Dist=3111, logage=7.785, [Fe/H]=0.135`
Hunt & Reffert (2023)	`AV50=2.358, diffAV50=1.484, MOD50=12.539, logAge50=8.072`
Cavallo et al. (2024)	`AV50=2.4, dMod50=12.12, logAge50=8.35, [Fe/H]50=-0.16`
Hunt & Reffert (2024)	`MassJ=959.663, MassTot=1002.96`
Almeida et al. (2025)	`AV=2.216, Dist=3111, logAge=7.785, MassRk=258.2`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0099	64.1	300.32	33.61	0.28	-2.34	-5.07	-3.05	0.01
OC 0098	27.2	300.32	33.62	0.27	-2.33	-5.1	-3.38	0.0