Ruprecht 108

(OCL 907; ESO 132 11; MWSC2132)

Click to load Aladin Lite
0.86 UTI
0.57
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
Radius (P>50% members) 7.1 [arcmin]
  • CN 0.57 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique

Overview

Ruprecht 108 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is very well-studied in the literature.
Close Low 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

Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 202.988 -58.493 1.013 -8.979 -2.277 -37.086
Almeida et al. 2025 203.004 -58.494
Hunt & Reffert 2024 203.012 -58.495 1.001 -8.964 -2.283 -43.238
Cavallo et al. 2024 202.942 -58.488 1.012
Hunt & Reffert 2023 203.012 -58.495 1.001 -8.964 -2.283 -43.238
He et al. 2022 203.017 -58.498 1.007 -8.984 -2.289
Dias et al. 2021 203.004 -58.494 0.985 -8.97 -2.278
Cantat-Gaudin et al. 2020 203.002 -58.509 0.977 -9.025 -2.323
Bossini et al. 2019 203.002 -58.509
Bica et al. 2019 203.044 -58.47
Cantat-Gaudin et al. 2018 203.002 -58.509 0.977 -9.025 -2.323
Loktin & Popova 2017 203.055 -58.467 -8.052 0.045
Piskunov et al. 2008 203.044 -58.471
Kharchenko et al. 2005 203.05 -58.47 -10.28 -2.8
Kharchenko et al. 2003 203.05 -58.47 -11.05 -2.68
Dias et al. 2002 203.046 -58.467 -10.06 -3.25

💡 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
Almeida et al. 2025 1.00 0.68 234 77
Hunt & Reffert 2024 188*
Cavallo et al. 2024 0.99 0.80 170 0.110
Hunt & Reffert 2023 0.94 0.48 0.39 221
He et al. 2022 0.75 71
Tarricq et al. 2022 0.97 85
Dias et al. 2021 1.00 0.68 234 0.086
Cantat-Gaudin et al. 2020 0.99 0.27 83
Bossini et al. 2019 0.98 0.49 89 0.000
Cantat-Gaudin et al. 2018 0.99
Loktin & Popova 2017 0.96 0.44 262
Piskunov et al. 2008 0.90 0.43 257
Kharchenko et al. 2005 0.90 0.43 257
Kharchenko et al. 2003 0.90 0.43
Dias et al. 2002 0.90 0.42 265

💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
(*): indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

Galactocentric position diagram

💡 Note: How are the galactocentric plots generated? See FAQ.