Ruprecht 175

(MWSC 3409)

0.21 UTI

0.0

C_N

0.06

C_dens

0.25

C_C3

0.38

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 24

Radius (P>50% members) 4.3 [arcmin]

C_N 0.0 Sparse
C_dens 0.06 Very loose
C_C3 0.25 Low quality
C_lit 0.38 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Ruprecht 175 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~7.27 kpc) differs significantly from the median photometric distance (~4.43 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.

Distant Moderate extinction Old

Data

🔍 Search references for Ruprecht 175 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	–	311.26	35.52	0.138	-1.894	-2.837	14.006
Just et al.	2023	311.259	35.5	–	–	–	–
Loktin & Popova	2017	311.265	35.5	–	-0.297	-0.94	–
Kharchenko et al.	2016	311.259	35.5	–	–	–	–
Dias et al.	2014	311.3	35.5	–	-2.6	-4.4	–
Kharchenko et al.	2013	311.265	35.503	–	0.21	-3.19	–
Dias et al.	2002	311.3	35.5	–	-2.6	-4.4	–

💡 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]	Bfr	BSS
Just et al.	2023	–	–	–	1000	–	256	–	–
Loktin & Popova	2017	2.93	1.14	–	25	–	–	–	–
Kharchenko et al.	2016	4.43	1.62	–	1000	–	–	–	–
Kharchenko et al.	2013	4.43	1.62	–	1000	–	–	–	–
Dias et al.	2002	4.43	1.62	–	1000	–	–	–	–

Visualization

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