Ruprecht 143

(MWSC 2945; OCL 62; MWSC 1408)

0.91 UTI

0.8

C_N

1.0

C_dens

1.0

C_C3

0.86

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 242

Radius (P>50% members) 3.9 [arcmin]

C_N 0.8 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.86 Well-studied
C_dup 1.0 Unique

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

Overview

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Ruprecht 143 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.

Relatively close High extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit. Silver sample.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Ruprecht 143 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	–	278.173	-12.15	0.343	0.727	-1.1	11.005
Li et al.	2025	278.174	-12.148	0.323	0.722	-1.086	–
Almeida et al.	2025	278.171	-12.149	–	–	–	–
Hunt & Reffert	2024	278.174	-12.151	0.348	0.71	-1.103	3.874
Cavallo et al.	2024	278.166	-12.146	0.349	–	–	–
Hunt & Reffert	2023	278.174	-12.151	0.348	0.71	-1.103	3.874
Just et al.	2023	278.142	-12.141	–	–	–	–
Dias et al.	2021	278.171	-12.149	0.32	0.728	-1.078	12.447
Cantat-Gaudin et al.	2020	278.174	-12.148	0.323	0.722	-1.086	–
Cantat-Gaudin & Anders	2020	278.174	-12.148	0.323	0.722	-1.086	–
Soubiran et al.	2018	278.174	-12.148	–	–	–	11.31
Bica et al.	2019	278.164	-12.133	–	–	–	–
Cantat-Gaudin et al.	2018	278.174	-12.148	0.323	0.722	-1.086	–
Kharchenko et al.	2016	278.142	-12.141	–	–	–	–
Dias et al.	2014	278.15	-12.133	–	-0.36	-0.58	–
Kharchenko et al.	2013	278.149	-12.14	–	-2.21	-3.68	–
Dias et al.	2002	278.15	-12.133	–	-0.36	-0.58	–

💡 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
Li et al.	2025	2.23	2.87	–	466	0.053	–	–	–
Almeida et al.	2025	2.43	2.77	–	326	–	701	–	–
Hunt & Reffert	2024	–	–	–	–	–	2618*	–	–
Cavallo et al.	2024	1.94	3.27	–	468	-0.420	–	–	–
Hunt & Reffert	2023	2.53	3.12	2.08	128	–	–	–	–
Just et al.	2023	–	–	–	447	–	237	–	–
Dias et al.	2021	2.43	2.77	–	326	0.188	–	–	–
Cantat-Gaudin et al.	2020	2.77	2.38	–	398	–	–	–	–
Cantat-Gaudin & Anders	2020	2.84	–	–	–	–	–	–	–
Soubiran et al.	2018	2.84	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.84	–	–	–	–	–	–	–
Kharchenko et al.	2016	2.06	3.16	–	447	–	–	–	–
Kharchenko et al.	2013	2.06	3.16	–	447	–	–	–	–
Dias et al.	2002	2.06	3.16	–	447	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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