Ruprecht 96

(MWSC 1983; OCL 866; ESO 130 02)

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0.96 UTI
0.78
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 190
Radius (P>50% members) 2.8 [arcmin]
  • CN 0.78 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very 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
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Ruprecht 96 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age 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.

Note: This object shares a small percentage of members with a later reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Ruprecht 96 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 – 177.679 -62.143 0.288 -5.516 0.831 -14.0
Li et al. 2025 177.67 -62.14 0.27 -5.491 0.806 –
Almeida et al. 2025 177.667 -62.139 – – – –
Hunt & Reffert 2024 177.685 -62.141 0.287 -5.529 0.842 -3.298
Cavallo et al. 2024 177.666 -62.139 0.288 – – –
Hunt & Reffert 2023 177.685 -62.141 0.287 -5.529 0.842 -3.298
Just et al. 2023 177.689 -62.147 – – – –
Dias et al. 2021 177.667 -62.139 0.278 -5.48 0.818 –
Cantat-Gaudin et al. 2020 177.67 -62.14 0.27 -5.491 0.806 –
Donor et al. 2020 177.697 -62.15 – -5.48 0.81 -6.3
Cantat-Gaudin & Anders 2020 177.67 -62.14 0.27 -5.491 0.806 –
Soubiran et al. 2018 177.67 -62.14 – – – -14.09
Bica et al. 2019 177.673 -62.14 – – – –
Cantat-Gaudin et al. 2018 177.67 -62.14 0.27 -5.491 0.806 –
Kharchenko et al. 2016 177.689 -62.147 – – – –
Dias et al. 2014 177.654 -62.133 – -4.42 -0.56 –
Kharchenko et al. 2013 177.697 -62.15 – -5.34 -0.58 –
Piskunov et al. 2008 177.652 -62.137 – – – –
Kharchenko et al. 2005 177.66 -62.14 – -5.74 -0.03 –
Dias et al. 2002 177.654 -62.133 – -4.42 -0.54 –

💡 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 2.94 1.15 – 468 0.030 – – –
Almeida et al. 2025 2.79 1.65 – 73 – 498 – –
Hunt & Reffert 2024 – – – – – 1174* – –
Cavallo et al. 2024 2.68 1.59 – 269 -0.200 – – –
Hunt & Reffert 2023 3.04 1.34 1.27 146 – – – –
Just et al. 2023 – – – 1148 – 53 – –
Dias et al. 2021 2.79 1.65 – 73 0.037 – – –
Cantat-Gaudin et al. 2020 3.28 1.39 – 47 – – – –
Donor et al. 2020 – – – – 0.030 – – –
Cantat-Gaudin & Anders 2020 3.35 – – – – – – –
Soubiran et al. 2018 3.35 – – – – – – –
Cantat-Gaudin et al. 2018 3.35 – – – – – – –
Kharchenko et al. 2016 1.25 0.13 – 1148 – – – –
Kharchenko et al. 2013 1.25 0.13 – 1148 – – – –
Piskunov et al. 2008 0.86 0.78 – 1000 – – – –
Kharchenko et al. 2005 0.86 0.78 – 1000 – – – –
Dias et al. 2002 0.86 0.78 – 1000 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0574 18.9 177.67 -62.14 0.3 -5.49 0.85 – 0.0

💡 Note: The % column shows the percentage of members that Ruprecht 96 shares with each listed object.

Visualization
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Ruprecht 96 UCC
Ruprecht 96 HUNT23
Ruprecht 96 CANTAT20
Galactocentric position diagram