Ruprecht 28

(FoF 686)

UTI: UCC Trust Index C_N C_dens C_C3 C_lit C_dup 0.83 1.0 0.75 0.85 1.0 Ruprecht 28 is a rich, very dense object of high C3 quality. It is well-studied in the literature. This object shares a very small percentage of members with 2 later reported entries.
C3	N_50	r_50
AB	316	3.6

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Kharchenko et al. (2012)	114.9	-30.935	–	-3.01	0.44	–
Loktin & Popova (2017)	114.9	-30.936	–	-1.586	1.408	–
Liu & Pang (2019)	114.888	-30.905	0.242	-2.501	3.578	–
Cantat-Gaudin et al. (2020)	114.9	-30.933	0.198	-2.567	3.854	–
Dias et al. (2021)	114.901	-30.931	0.197	-2.564	3.89	89.241
Hunt & Reffert (2023)	114.904	-30.935	0.218	-2.566	3.806	91.367
Cavallo et al. (2024)	114.891	-30.917	0.219	–	–	–
Hunt & Reffert (2024)	114.904	-30.935	0.218	-2.566	3.806	91.367
Hu & Soubiran (2025)	114.891	-30.917	–	–	–	–
UCC	114.897	-30.935	0.225	-2.553	3.816	91.135

Search coordinates in CDS | Simbad

Estimated members

1 2 3

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Fundamental parameters

Reference	Values
Kharchenko et al. (2012)	e_bv=0.416, distance=4712, log_age=8.76
Loktin & Popova (2017)	E(B-V)=0.467, Dmod=13.901, logt=8.93
Liu & Pang (2019)	Age=0.692, Z=0.5
Cantat-Gaudin et al. (2020)	AVNN=0.83, DMNN=13.14, AgeNN=9.07
Dias et al. (2021)	Av=1.414, Dist=3707, logage=9.222, [Fe/H]=-0.223
Hunt & Reffert (2023)	AV50=0.894, diffAV50=0.62, MOD50=13.056, logAge50=9.082
Cavallo et al. (2024)	AV50=1.57, dMod50=12.61, logAge50=9.09, [Fe/H]50=-0.49
Hunt & Reffert (2024)	MassJ=887.399
Hu & Soubiran (2025)	MA22=-0.17, MA23f=-0.42, MA23g=-0.16, MZ23=-0.21, MK24=-0.33, MF24=-0.2

Search coordinates in Bayestar19

Cluster region

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0424	9.2	114.91	-30.93	0.23	-2.56	3.8	90.94	0.0
OC 0425	7.9	114.89	-30.94	0.22	-2.56	3.81	92.47	0.0