Ruprecht 61

N_50

r_50

229

2.8

Summary

Ruprecht 61 is a rich, very dense object of 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 small 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)	126.321	-34.15	–	-1.42	3.67	–
Kharchenko et al. (2012)	126.308	-34.159	–	-1.42	3.67	–
Cantat-Gaudin et al. (2018)	126.327	-34.135	0.271	-2.556	3.866	–
Soubiran et al. (2018)	126.327	-34.135	–	–	–	42.7
Cantat-Gaudin et al. (2020)	126.327	-34.135	0.271	-2.556	3.866	–
Dias et al. (2021)	126.321	-34.142	0.279	-2.53	3.826	–
Hunt & Reffert (2023)	126.323	-34.145	0.256	-2.528	3.808	42.951
Cavallo et al. (2024)	126.328	-34.144	0.257	–	–	–
Hunt & Reffert (2024)	126.323	-34.145	0.256	-2.528	3.808	42.951
Almeida et al. (2025)	126.321	-34.142	–	–	–	–
Hu & Soubiran (2025)	126.328	-34.144	–	–	–	–

UCC	126.329	-34.143	0.26	-2.534	3.811	44.799

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)=0.3, Dist=3900.0, Age=9.11, [Fe/H]=-0.38`
Kharchenko et al. (2012)	`e_bv=0.333, distance=6006, log_age=9.1, metallicity=-0.4`
Cantat-Gaudin et al. (2018)	`dmode=3329.4`
Soubiran et al. (2018)	`dmode=3329.4`
Dias et al. (2021)	`Av=1.112, Dist=2974, logage=9.076, [Fe/H]=-0.132`
Hunt & Reffert (2023)	`AV50=1.07, diffAV50=0.822, MOD50=12.601, logAge50=8.903`
Cavallo et al. (2024)	`AV50=1.52, dMod50=12.54, logAge50=9.01, [Fe/H]50=-0.09`
Hunt & Reffert (2024)	`MassJ=843.119, MassTot=843.119`
Almeida et al. (2025)	`AV=1.112, Dist=2974, logAge=9.076, MassRk=180.7`
Hu & Soubiran (2025)	`MA22=-0.22, MA23f=-0.44, MA23g=-0.28, MZ23=-0.41, MK24=-0.33, MF24=-0.31`

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 2036	10.9	126.35	-34.14	0.32	-2.54	3.77	–	0.0