Ruprecht 150

(MWSC 1093)

0.17 UTI

0.0

C_N

0.02

C_dens

0.25

C_C3

0.29

C_lit

1.0

C_dup

N_m (P>50%) 20

Core radius and density 4.2 [pc], 0.09 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.25 Low quality
C_lit 0.29 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Ruprecht 150 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, well below the mid-plane, affected by low extinction. It is catalogued as a low-mass, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.24 kpc) differs significantly from the median photometric distance (~1.79 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.

Relatively close Low extinction Low mass Intermediate age

Data

🔍 Search references for Ruprecht 150 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–	106.488	-28.389	0.236	-1.228	3.366	64.883
Just et al.	2023	106.487	-28.408	–	–	–	–
Dias et al.	2018	–	–	–	-1.02	2.3	–
Dib et al.	2018	106.492	-28.41	–	–	–	–
Sampedro et al.	2017	106.479	-28.417	–	1.23	2.67	–
Joshi et al.	2016	106.492	-28.41	–	–	–	–
Kharchenko et al.	2016	106.487	-28.408	–	–	–	–
Dias et al.	2014	106.479	-28.417	–	0.86	2.9	–
Kharchenko et al.	2013	106.492	-28.41	–	-1.6	1.17	–
Bukowiecki et al.	2011	106.483	-28.408	–	–	–	–
Dias et al.	2002	106.479	-28.417	–	-1.6	1.17	–
Lynga	1987	106.468	-28.449	–	–	–	–

💡 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–	1.79	0.85	–	501	–	44	–	–
Just et al.	2023	–	–	–	501	–	44	–	–
Dib et al.	2018	1.79	–	–	501	–	–	–	–
Joshi et al.	2016	1.79	0.85	–	501	–	–	–	–
Kharchenko et al.	2016	1.79	0.85	–	501	–	–	–	–
Kharchenko et al.	2013	1.79	0.85	–	501	–	–	–	–
Dias et al.	2002	1.79	0.85	–	501	–	–	–	–

Visualization

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