Ruprecht 86

(MWSC 1747; OCL 801)

0.26 UTI

0.32

C_N

0.13

C_dens

0.25

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 32

Stellar density (N₅₀/rad) 0.7 [N/pc²]

C3 classification CC

C_N 0.32 Poorly populated
C_dens 0.13 Very loose
C_C3 0.25 Low quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

Ruprecht 86 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by high extinction. It is catalogued as a very massive, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.14 kpc) differs significantly from the median photometric distance (~7.17 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Very distant High extinction Very massive Intermediate age

Data

🔍 Search references for Ruprecht 86 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	150.362	-59.495	0.242	-5.563	3.899	33.834
Just et al.	2023	150.431	-59.451	–	–	–	–
Bica et al.	2019	150.399	-59.488	–	–	–	–
Kharchenko et al.	2016	150.431	-59.451	–	–	–	–
Dias et al.	2014	150.4	-59.467	–	-0.9	4.19	–
Kharchenko et al.	2013	150.435	-59.455	–	-11.74	6.6	–

💡 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–	7.17	3.1	–	631	–	5070	–	–
Just et al.	2023	–	–	–	631	–	5070	–	–
Kharchenko et al.	2016	7.17	3.10	–	631	–	–	–	–
Kharchenko et al.	2013	7.17	3.10	–	631	–	–	–	–

Visualization

ℹ️