Ruprecht 117

(MWSC 2395; FoF 862)

Click to load Aladin Lite
0.90 UTI
0.76
CN
1.0
Cdens
1.0
CC3
0.86
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 130
Radius (P>50% members) 2.4 [arcmin]
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.86 Well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Ruprecht 117 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 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 well-studied in the literature.

(*): The parallax distance estimate (~3.13 kpc) differs significantly from the median photometric distance (~2.00 kpc).

Note: This object shares a moderate 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: intermediate fit. Silver sample.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Ruprecht 117 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 245.879 -51.872 0.319 -0.504 -2.219 -43.172
Li et al. 2025 245.888 -51.879 0.276 -0.474 -2.234 –
Almeida et al. 2025 245.882 -51.896 – – – –
Hunt & Reffert 2024 245.96 -51.871 0.619 -0.864 -2.461 9.888
Cavallo et al. 2024 245.998 -51.836 0.617 – – –
Hunt & Reffert 2023 245.96 -51.871 0.619 -0.864 -2.461 9.888
Just et al. 2023 245.847 -51.88 – – – –
Dias et al. 2021 245.882 -51.896 0.275 -0.47 -2.236 -43.077
Cantat-Gaudin et al. 2020 245.888 -51.879 0.276 -0.474 -2.234 –
Cantat-Gaudin & Anders 2020 245.888 -51.879 0.276 -0.474 -2.234 –
Liu & Pang 2019 245.889 -51.867 0.278 -0.516 -2.239 –
Soubiran et al. 2018 245.888 -51.879 – – – -42.3
Cantat-Gaudin et al. 2018 245.888 -51.879 0.276 -0.474 -2.234 –
Kharchenko et al. 2016 245.847 -51.88 – – – –
Dias et al. 2014 245.883 -51.883 – -1.37 -5.34 –
Kharchenko et al. 2013 245.857 -51.88 – -2.92 -7.83 –
Dias et al. 2002 245.883 -51.883 – -1.53 -5.22 –

💡 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 1.64 0.84 – 686 -0.036 – – –
Almeida et al. 2025 2.35 1.17 – 444 – 416 – –
Hunt & Reffert 2024 – – – – – 180* – –
Cavallo et al. 2024 1.49 1.46 – 65 0.050 – – –
Hunt & Reffert 2023 1.58 1.29 0.43 77 – – – –
Just et al. 2023 – – – 891 – 11 – –
Dias et al. 2021 2.35 1.17 – 444 0.497 – – –
Cantat-Gaudin et al. 2020 3.30 1.47 – 132 – – – –
Cantat-Gaudin & Anders 2020 3.28 – – – – – – –
Liu & Pang 2019 – – – 170 0.250 – – –
Soubiran et al. 2018 3.28 – – – – – – –
Cantat-Gaudin et al. 2018 3.28 – – – – – – –
Kharchenko et al. 2016 0.94 0.39 – 891 – – – –
Kharchenko et al. 2013 0.94 0.39 – 891 – – – –
Dias et al. 2002 0.94 0.39 – 891 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0653 30.8 245.89 -51.87 0.32 -0.51 -2.19 -43.01 0.0

💡 Note: The % column shows the percentage of members that Ruprecht 117 shares with each listed object.

Visualization
ℹī¸
Ruprecht 117 UCC
Ruprecht 117 HUNT23
Ruprecht 117 CANTAT20
Galactocentric position diagram