Ruprecht 77

(VDBH 68; MWSC 1670; OCL 784; vdBergh-Hagen 68; ESO 166 12)

0.74 UTI

0.52

C_N

1.0

C_dens

0.5

C_C3

0.84

C_lit

1.0

C_dup

N₅₀ (P>50% members) 55

Stellar density (N₅₀/rad) 8.4 [N/pc²]

C3 classification BB

C_N 0.52 Moderately populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.84 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Ruprecht 77 is a moderately populated, very dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, young cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.

Distant Moderate extinction Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Ruprecht 77 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	141.801	-55.108	0.274	-6.255	4.806	41.115
Hunt & Reffert	2024	141.842	-55.098	0.278	-6.234	4.83	41.115
Celli et al.	2024	141.784	-55.126	–	–	–	–
Cavallo et al.	2024	141.807	-55.104	0.28	–	–	–
Hunt & Reffert	2023	141.842	-55.098	0.278	-6.234	4.83	41.115
Just et al.	2023	141.79	-55.12	–	–	–	–
Cantat-Gaudin et al.	2020	141.821	-55.119	0.242	-6.286	4.84	–
Cantat-Gaudin & Anders	2020	141.821	-55.119	0.242	-6.286	4.84	–
Bica et al.	2019	141.758	-55.116	–	–	–	–
Cantat-Gaudin et al.	2018	141.821	-55.119	0.242	-6.286	4.84	–
Loktin & Popova	2017	141.765	-55.123	–	-10.819	0.743	–
Kharchenko et al.	2016	141.79	-55.12	–	–	–	–
Dias et al.	2014	141.767	-55.117	–	1.12	-0.89	–
Kharchenko et al.	2013	141.795	-55.123	–	-4.36	2.48	–
Bukowiecki et al.	2011	141.758	-55.121	–	–	–	–
van den Bergh	2006	141.775	-55.117	–	–	–	–
Dias et al.	2002	141.767	-55.117	–	1.12	-0.89	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	B_frac	BSS
UCC	99999–	4.09	1.93	1.77	35	0.800	474	–	–
Hunt & Reffert	2024	–	–	–	–	–	426⁽¹⁾	–	–
Celli et al.	2024	–	–	–	12	–	192	–	–
Cavallo et al.	2024	4.04	1.93	–	68	0.800	–	–	–
Hunt & Reffert	2023	3.17	1.55	1.77	202	–	–	–	–
Just et al.	2023	–	–	–	89	–	971	–	–
Cantat-Gaudin et al.	2020	4.11	1.92	–	12	–	–	–	–
Cantat-Gaudin & Anders	2020	3.69	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	3.69	–	–	–	–	–	–	–
Loktin & Popova	2017	4.14	1.92	–	33	–	–	–	–
Kharchenko et al.	2016	4.09	2.13	–	89	–	–	–	–
Kharchenko et al.	2013	4.09	2.13	–	89	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	523	–	–
Bukowiecki et al.	2011	4.17⁽¹⁾	2.20	–	35	–	–	–	–
van den Bergh	2006	4.13	1.92	–	32	–	–	–	–
Dias et al.	2002	4.13	1.93	–	32	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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