Ruprecht 148

(Basel 9; OCL 408; MWSC 421)

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0.83 UTI
0.76
CN
1.0
Cdens
0.75
CC3
0.82
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 139
Radius (P>50% members) 4.5 [arcmin]
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.82 Well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Ruprecht 148 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is well-studied in the literature.
Distant Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for Ruprecht 148 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 71.641 44.711 0.261 -0.178 -1.138 -1.19
Almeida et al. 2025 71.641 44.716 – – – –
Hunt & Reffert 2024 71.628 44.715 0.276 -0.165 -1.122 -23.232
Cavallo et al. 2024 71.696 44.74 0.278 – – –
Hunt & Reffert 2023 71.628 44.715 0.276 -0.165 -1.122 -23.232
Almeida et al. 2023 71.657 44.716 – – – –
Dias et al. 2021 71.641 44.716 0.251 -0.143 -1.081 –
Cantat-Gaudin et al. 2020 71.638 44.711 0.26 -0.153 -1.076 –
SΓ‘nchez et al. 2020 71.625 44.733 – -0.273 -1.098 –
Cantat-Gaudin & Anders 2020 71.638 44.711 0.26 -0.153 -1.076 –
Bica et al. 2019 71.625 44.728 – – – –
Cantat-Gaudin et al. 2018 71.638 44.711 0.26 -0.153 -1.076 –
Loktin & Popova 2017 71.625 44.734 – -1.88 0.57 –
Dias et al. 2014 71.625 44.733 – -1.88 0.57 –
van den Bergh 2006 71.645 44.71 – – – –
Dias et al. 2002 71.625 44.733 – -1.88 0.57 –

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] Bfr BSS
Almeida et al. 2025 2.80 2.05 – 80 – 262 – –
Hunt & Reffert 2024 – – – – – 871* – –
Cavallo et al. 2024 3.24 2.18 – 93 0.480 – – –
Hunt & Reffert 2023 3.16 2.10 1.75 96 – – – –
Almeida et al. 2023 3.01 2.29 – 27 -0.140 388* 0.64 –
Dias et al. 2021 2.80 2.05 – 80 0.188 – – –
Cantat-Gaudin et al. 2020 3.40 1.84 – 44 – – – –
Cantat-Gaudin & Anders 2020 3.46 – – – – – – –
Cantat-Gaudin et al. 2018 3.46 – – – – – – –
Loktin & Popova 2017 2.37 1.40 – 245 – – – –
van den Bergh 2006 3.03 2.17 – 52 – – – –
Dias et al. 2002 3.03 2.18 – 53 – – – –

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

Visualization
ℹ️
Ruprecht 148 UCC
Ruprecht 148 HUNT23
Ruprecht 148 CANTAT20
Galactocentric position diagram