Ruprecht 107

(VDBH 146; MWSC 2108; OCL 896; vdBergh-Hagen 146; ESO 096 08)

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0.90 UTI
0.76
CN
1.0
Cdens
1.0
CC3
0.87
Clit
1.0
Cdup
Nm (P>50%) 129
Core radius and density 1.3 [pc], 7.1 [pc-2]
C3 classification AA
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.87 Well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Ruprecht 107 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 absorption, age, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.93 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.93 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1826, e_all=0.1278.

Data
πŸ” Search references for Ruprecht 107 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 199.955 -64.943 0.242 -5.879 -1.62 -25.859
Li et al. 2025 199.937 -64.944 0.237 -5.845 -1.622 –
Hu & Soubiran 2025 199.953 -64.946 – – – –
Almeida et al. 2025 199.929 -64.945 – – – –
Hunt & Reffert 2024 199.941 -64.945 0.242 -5.891 -1.618 -47.553
Cavallo et al. 2024 199.953 -64.946 0.244 – – –
Hunt & Reffert 2023 199.941 -64.945 0.242 -5.891 -1.618 -47.553
Almeida et al. 2023 199.932 -64.94 – – – –
Just et al. 2023 199.93 -64.947 – – – –
Richer et al. 2021 199.941 -64.95 0.228 -5.837 -1.591 –
Dias et al. 2021 199.929 -64.945 0.245 -5.834 -1.616 –
Cantat-Gaudin et al. 2020 199.937 -64.944 0.237 -5.845 -1.622 –
SΓ‘nchez et al. 2020 199.942 -64.95 – -5.978 -1.654 –
Cantat-Gaudin & Anders 2020 199.937 -64.944 0.237 -5.845 -1.622 –
Bica et al. 2019 199.923 -64.938 – – – –
Cantat-Gaudin et al. 2018 199.937 -64.944 0.237 -5.845 -1.622 –
Loktin & Popova 2017 199.935 -64.95 – -12.128 -5.236 -45.4
Sampedro et al. 2017 199.942 -64.95 – -3.19 -2.85 –
Joshi et al. 2016 199.941 -64.95 – – – –
Kharchenko et al. 2016 199.93 -64.947 – – – –
Dias et al. 2014 199.942 -64.95 – -3.58 -3.35 –
Kharchenko et al. 2013 199.941 -64.95 – -15.98 0.3 -45.4
Gozha et al. 2012 199.942 -64.95 – – – –
Bukowiecki et al. 2011 199.967 -64.939 – – – –
van den Bergh 2006 200.15 -64.95 – – – –
Dias et al. 2002 199.942 -64.95 – -3.58 -3.35 –
Lynga 1987 200.139 -64.948 – – – –
van den Bergh & Hagen 1975 199.3 -64.683 – – – –

πŸ’‘ 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] Bfrac BSS
UCC 99999– 3.12 1.55 1.38 172 0.026 533 0.67 –
Li et al. 2025 1.54 0.00 – 2689 -0.163 – – –
Hu & Soubiran 2025 – – – – -0.180(5) – – –
Almeida et al. 2025 3.15 1.53 – 255 – 333 – –
Hunt & Reffert 2024 3.87 1.61 1.38 68 – 1054(1) – –
Cavallo et al. 2024 3.12 0.79 – 851 0.080 – – –
Hunt & Reffert 2023 3.87 1.60 1.38 68 – – – –
Almeida et al. 2023 3.26 1.65 – 123 0.131 533(1) 0.67 –
Just et al. 2023 – – – 172 – 4 – –
Richer et al. 2021 – 1.55 – – – – – –
Dias et al. 2021 3.15 1.53 – 255 0.026 – – –
Cantat-Gaudin et al. 2020 3.47 1.01 – 204 – – – –
Kounkel et al. 2020 3.71 1.76 – 219 – – – –
Cantat-Gaudin & Anders 2020 3.76 – – – – – – –
Cantat-Gaudin et al. 2018 3.76 – – – – – – –
Loktin & Popova 2017 1.46 1.39 – 37 – – – –
Joshi et al. 2016 1.45 1.84 – 172 – – – –
Kharchenko et al. 2016 1.45 1.84 – 172 – – – –
Kharchenko et al. 2013 1.45 1.84 – 172 – – – –
Bukowiecki et al. 2012 – – – – – 674 – –
Gozha et al. 2012 1.44 – – 30 – – – –
Bukowiecki et al. 2011 1.52(1) 1.58 – 32 – – – –
van den Bergh 2006 1.44 1.45 – 30 – – – –
Dias et al. 2002 1.44 1.44 – 30 – – – –
Lynga 1987 – – – 126 – – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization
ℹ️
Ruprecht 107 UCC
Ruprecht 107 HUNT23
Ruprecht 107 CANTAT20
Galactocentric position diagram