Ruprecht 16

(MWSC 1198; OCL 612; ESO 559 07)

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0.88 UTI
0.62
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 75
Radius (P>50% members) 4.0 [arcmin]
  • CN 0.62 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 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
ℹī¸
Ruprecht 16 is a moderately populated, very dense 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 very well-studied in the literature.
Relatively close Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Ruprecht 16 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 – 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 –
Kharchenko et al. 2016 110.784 -19.471 – – – –
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 –

💡 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 2.69 0.85 – 309 0.045 – – –
Almeida et al. 2025 2.52 1.01 – 239 – 278 – –
Hunt & Reffert 2024 – – – – – 436* – –
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* 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 – – – –
Cantat-Gaudin & Anders 2020 3.00 – – – – – – –
Soubiran et al. 2018 3.00 – – – – – – –
Cantat-Gaudin et al. 2018 3.00 – – – – – – –
Kharchenko et al. 2016 1.70 0.84 – 447 – – – –
Kharchenko et al. 2013 1.70 0.84 – 447 – – – –
Dias et al. 2002 2.16 2.20 – 158 – – – –

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

Visualization
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Ruprecht 16 UCC
Ruprecht 16 HUNT23
Ruprecht 16 CANTAT20
Galactocentric position diagram