Ruprecht 144

(MWSC 2950; OCL 63)

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0.70 UTI
0.75
CN
0.65
Cdens
0.75
CC3
0.68
Clit
1.0
Cdup
Nm (P>50%) 103
Core radius and density 1.8 [pc], 3.2 [pc-2]
C3 classification AB
  • CN 0.75 Rich
  • Cdens 0.65 Moderately dense
  • CC3 0.75 High quality
  • Clit 0.68 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 144 is a rich, moderately dense object of high C3 quality. Its parallax locates it at a relatively close distance, near 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 metallicity parameters (see Parameters). It is moderately studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.87 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.87 (50th percentile), true positive (human-assigned).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1138, e_all=0.0545.

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Data
🔍 Search references for Ruprecht 144 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 99999– 278.423 -11.43 0.565 0.207 -0.891 -2.618
Li et al. 2025 278.437 -11.425 0.555 0.142 -0.876 –
Almeida et al. 2025 278.465 -11.46 – – – –
Hunt & Reffert 2024 278.411 -11.421 0.568 0.236 -0.886 -54.134
Cavallo et al. 2024 278.44 -11.431 0.568 – – –
Hunt & Reffert 2023 278.411 -11.421 0.568 0.236 -0.886 -54.134
Just et al. 2023 278.37 -11.411 – – – –
Dias et al. 2021 278.465 -11.46 0.555 0.134 -0.866 –
Cantat-Gaudin et al. 2020 278.437 -11.425 0.555 0.142 -0.876 –
Cantat-Gaudin & Anders 2020 278.437 -11.425 0.555 0.142 -0.876 –
Bica et al. 2019 278.38 -11.421 – – – –
Cantat-Gaudin et al. 2018 278.437 -11.425 0.555 0.142 -0.876 –
Dias et al. 2018 – – – 0.6 -2.0 –
Dib et al. 2018 278.377 -11.41 – – – –
Sampedro et al. 2017 278.392 -11.417 – -2.67 2.0 –
Joshi et al. 2016 278.377 -11.41 – – – –
Kharchenko et al. 2016 278.37 -11.411 – – – –
Dias et al. 2014 278.392 -11.417 – -2.7 1.46 –
Kharchenko et al. 2013 278.377 -11.41 – -0.29 -7.34 –
Morales et al. 2013 278.392 -11.417 – – – –
Dias et al. 2002 278.392 -11.417 – -2.7 1.46 –
Lynga 1987 278.343 -11.447 – – – –

💡 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– 1.61 2.195 1.62 102 -0.150 341 – –
Li et al. 2025 1.17 2.22 – 42 -0.242 – – –
Almeida et al. 2025 1.51 2.17 – 17 – 341 – –
Hunt & Reffert 2024 1.61 2.31 1.62 21 – 500(1) – –
Cavallo et al. 2024 1.53 2.59 – 71 -0.150 – – –
Hunt & Reffert 2023 1.61 2.31 1.62 21 – – – –
Just et al. 2023 – – – 624 – 161 – –
Dias et al. 2021 1.51 2.17 – 17 0.233 – – –
Cantat-Gaudin et al. 2020 1.59 1.90 – 30 – – – –
Kounkel et al. 2020 1.76 2.82 – 102 – – – –
Cantat-Gaudin & Anders 2020 1.71 – – – – – – –
Cantat-Gaudin et al. 2018 1.71 – – – – – – –
Dib et al. 2018 1.65 – – 624 – – – –
Joshi et al. 2016 1.65 2.10 – 624 – – – –
Kharchenko et al. 2016 1.65 2.10 – 624 – – – –
Kharchenko et al. 2013 1.65 2.10 – 624 – – – –
Morales et al. 2013 1.60 – – 450 – – – –
Dias et al. 2002 1.60 2.43 – 447 – – – –

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

Visualization
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Ruprecht 144 UCC
Ruprecht 144 HUNT23
Ruprecht 144 CANTAT20
Galactocentric position diagram