Ruprecht 71

(MWSC 1574; OCL 761; ESO 260 09; FoF 2087)

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0.90 UTI
0.73
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 96
Radius (P>50% members) 5.0 [arcmin]
  • CN 0.73 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Ruprecht 71 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is very well-studied in the literature.
Relatively close Low extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Ruprecht 71 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 132.312 -46.862 0.497 -5.185 4.644 39.787
Li et al. 2025 132.316 -46.875 0.486 -5.22 4.642 –
Almeida et al. 2025 132.316 -46.865 – – – –
Hunt & Reffert 2024 132.323 -46.873 0.497 -5.187 4.661 28.724
Celli et al. 2024 132.316 -46.875 – – – –
Cavallo et al. 2024 132.292 -46.864 0.498 – – –
Hunt & Reffert 2023 132.323 -46.873 0.497 -5.187 4.661 28.724
Almeida et al. 2023 132.311 -46.862 – – – –
Just et al. 2023 132.332 -46.875 – – – –
Dias et al. 2021 132.316 -46.865 0.488 -5.194 4.644 –
Cantat-Gaudin et al. 2020 132.316 -46.875 0.486 -5.22 4.642 –
Cantat-Gaudin & Anders 2020 132.316 -46.875 0.486 -5.22 4.642 –
Liu & Pang 2019 132.312 -46.856 0.476 -5.165 4.628 –
Soubiran et al. 2018 132.316 -46.875 – – – 38.73
Bica et al. 2019 132.349 -46.845 – – – –
Cantat-Gaudin et al. 2018 132.316 -46.875 0.486 -5.22 4.642 –
Kharchenko et al. 2016 132.332 -46.875 – – – –
Dias et al. 2014 132.346 -46.85 – 0.19 3.56 –
Kharchenko et al. 2013 132.337 -46.878 – -3.17 6.17 –
Piskunov et al. 2008 132.338 -46.851 – – – –
Kharchenko et al. 2005 132.34 -46.85 – -2.48 5.58 –
Kharchenko et al. 2003 132.36 -46.87 – -2.0 5.94 –
Dias et al. 2002 132.346 -46.85 – 0.19 3.56 –

💡 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 1.77 1.11 – 12 -0.137 – – –
Almeida et al. 2025 1.81 1.12 – 18 – 190 – –
Hunt & Reffert 2024 – – – – – 628* – –
Celli et al. 2024 – – – 21 – 230 – –
Cavallo et al. 2024 1.76 1.04 – 21 0.120 – – –
Hunt & Reffert 2023 1.87 1.00 1.93 50 – – – –
Almeida et al. 2023 1.79 1.25 – 27 0.095 481* 0.62 –
Just et al. 2023 – – – 692 – 55 – –
Dias et al. 2021 1.81 1.12 – 18 0.172 – – –
Cantat-Gaudin et al. 2020 1.85 0.93 – 21 – – – –
Cantat-Gaudin & Anders 2020 1.94 – – – – – – –
Liu & Pang 2019 – – – 15 0.500 – – –
Soubiran et al. 2018 1.94 – – – – – – –
Cantat-Gaudin et al. 2018 1.94 – – – – – – –
Kharchenko et al. 2016 1.30 0.16 – 692 – – – –
Kharchenko et al. 2013 1.30 0.16 – 692 – – – –
Piskunov et al. 2008 1.30 0.16 – 603 – – – –
Kharchenko et al. 2005 1.30 0.16 – 603 – – – –
Kharchenko et al. 2003 1.00 0.31 – – – – – –
Dias et al. 2002 1.30 0.16 – 603 – – – –

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

Visualization
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Ruprecht 71 UCC
Ruprecht 71 HUNT23
Ruprecht 71 CANTAT20
Galactocentric position diagram