Ruprecht 16

(MWSC 1198; OCL 612; ESO 559 07)

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0.62 UTI
0.62
CN
0.26
Cdens
0.75
CC3
0.74
Clit
1.0
Cdup
Nm (P>50%) 75
Core radius and density 2.6 [pc], 1.3 [pc-2]
C3 classification AB
  • CN 0.62 Moderately populated
  • Cdens 0.26 Loose
  • CC3 0.75 High quality
  • Clit 0.74 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Ruprecht 16 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is moderately studied in the literature.

Liu et al. (2025)
Classified as primordial binary cluster 114 along with CWNU_2259.

Palma et al. (2025)
Classified as optical pair P200, along with CWNU_2259.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.0629, e_all=0.0948.

Data
🔍 Search references for Ruprecht 16 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 110.803 -19.483 0.312 -2.134 2.514 52.007
Li et al. 2025 110.798 -19.48 0.304 -2.174 2.501 –
Almeida et al. 2025 110.799 -19.465 – – – –
Hunt & Reffert 2024 110.794 -19.499 0.312 -2.129 2.516 44.88
Cavallo et al. 2024 110.795 -19.472 0.312 – – –
Hunt & Reffert 2023 110.794 -19.499 0.312 -2.129 2.516 44.88
Almeida et al. 2023 110.799 -19.474 – – – –
Just et al. 2023 110.784 -19.471 – – – –
Dias et al. 2021 110.799 -19.465 0.297 -2.164 2.491 –
Cantat-Gaudin et al. 2020 110.798 -19.48 0.304 -2.174 2.501 –
Cantat-Gaudin & Anders 2020 110.798 -19.48 0.304 -2.174 2.501 –
Soubiran et al. 2018 110.798 -19.48 – – – 52.22
Bica et al. 2019 110.759 -19.51 – – – –
Cantat-Gaudin et al. 2018 110.798 -19.48 0.304 -2.174 2.501 –
Dias et al. 2018 – – – -2.15 1.02 –
Dib et al. 2018 110.79 -19.473 – – – –
Sampedro et al. 2017 110.804 -19.451 – 0.08 1.15 –
Joshi et al. 2016 110.79 -19.473 – – – –
Kharchenko et al. 2016 110.784 -19.471 – – – –
Tadross 2014 110.792 -19.467 – – – –
Dias et al. 2014 110.804 -19.451 – 1.51 9.09 –
Kharchenko et al. 2013 110.79 -19.473 – -0.06 4.9 –
Dias et al. 2002 110.804 -19.451 – -1.25 0.07 –
Lynga 1987 110.795 -19.446 – – – –

💡 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– 2.69 0.85 0.64 244 -0.068 324 0.45 –
Liu et al. 2025 4.33 0.35 – 170 – – – –
Li et al. 2025 2.69 0.85 – 309 0.045 – – –
Almeida et al. 2025 2.52 1.01 – 239 – 278 – –
Hunt & Reffert 2024 2.81 0.82 0.64 244 – 436(1) – –
Cavallo et al. 2024 2.79 1.08 – 214 -0.190 – – –
Hunt & Reffert 2023 2.81 0.82 0.64 244 – – – –
Almeida et al. 2023 2.61 1.03 – 234 -0.046 369(1) 0.45 –
Just et al. 2023 – – – 447 – 25 – –
Dias et al. 2021 2.52 1.01 – 239 -0.090 – – –
Cantat-Gaudin et al. 2020 3.06 0.73 – 269 – – – –
Kounkel et al. 2020 3.19 1.17 – 331 – – – –
Cantat-Gaudin & Anders 2020 3.00 – – – – – – –
Soubiran et al. 2018 3.00 – – – – – – –
Cantat-Gaudin et al. 2018 3.00 – – – – – – –
Dib et al. 2018 1.70 – – 447 – – – –
Joshi et al. 2016 1.70 0.85 – 447 – – – –
Kharchenko et al. 2016 1.70 0.85 – 447 – – – –
Tadross 2014 2.16 2.24 – 160 – – – –
Kharchenko et al. 2013 1.70 0.85 – 447 – – – –
Dias et al. 2002 2.16 2.24 – 158 – – – –

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

Visualization
ℹī¸
Ruprecht 16 UCC
Ruprecht 16 HUNT23
Ruprecht 16 CANTAT20
Galactocentric position diagram