Berkeley 98

(FSR 0361; MWSC 3655; OCL 234; FoF 48)

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0.96 UTI
0.81
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 251
Radius (P>50% members) 3.3 [arcmin]
  • CN 0.81 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very 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
Berkeley 98 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 low extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

Note: This object shares a very small percentage of members with a later reported entry. See table with shared members information.

Distant Low extinction Massive Near-solar metallicity Old

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

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for Berkeley 98 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 340.665 52.408 0.25 -1.352 -3.255 -69.802
Li et al. 2025 340.665 52.407 0.253 -1.353 -3.186 –
Hu & Soubiran 2025 340.661 52.408 – – – –
Almeida et al. 2025 340.644 52.415 – – – –
Hunt & Reffert 2024 340.67 52.405 0.251 -1.348 -3.258 -69.962
Cavallo et al. 2024 340.661 52.408 0.253 – – –
Hunt & Reffert 2023 340.67 52.405 0.251 -1.348 -3.258 -69.962
Just et al. 2023 340.647 52.364 – – – –
Dias et al. 2021 340.644 52.415 0.255 -1.334 -3.214 -64.464
Cantat-Gaudin et al. 2020 340.665 52.407 0.253 -1.353 -3.186 –
SΓ‘nchez et al. 2020 340.658 52.388 – -1.33 -3.176 –
Donor et al. 2020 340.654 52.368 – -1.41 -3.23 -64.9
Cantat-Gaudin & Anders 2020 340.665 52.407 0.253 -1.353 -3.186 –
Liu & Pang 2019 340.67 52.407 0.278 -1.366 -3.142 –
Bica et al. 2019 340.664 52.41 – – – –
Cantat-Gaudin et al. 2018 340.665 52.407 0.253 -1.353 -3.186 –
Loktin & Popova 2017 340.665 52.388 – -5.278 0.432 –
Kharchenko et al. 2016 340.647 52.364 – – – –
Dias et al. 2014 340.658 52.388 – -0.47 -1.52 –
Kharchenko et al. 2013 340.654 52.368 – -5.83 -0.37 –
Kharchenko et al. 2012 340.654 52.368 – -5.83 -0.37 –
Froebrich et al. 2007 340.679 52.411 – – – –
Dias et al. 2002 340.658 52.388 – -0.47 -1.52 –

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
Li et al. 2025 3.49 0.70 – 2925 0.010 – – –
Hu & Soubiran 2025 – – – – -0.140* – – –
Almeida et al. 2025 3.45 0.74 – 3342 – 749 – –
Hunt & Reffert 2024 – – – – – 1084* – –
Cavallo et al. 2024 2.59 1.47 – 2692 -0.910 – – –
Hunt & Reffert 2023 3.76 0.78 0.65 1219 – – – –
Just et al. 2023 – – – 2089 – 3119 – –
Dias et al. 2021 3.45 0.74 – 3342 -0.059 – – –
Cantat-Gaudin et al. 2020 3.52 0.61 – 2455 – – – –
Donor et al. 2020 – – – – 0.000 – – –
Cantat-Gaudin & Anders 2020 3.54 – – – – – – –
Liu & Pang 2019 – – – 2950 0.000 – – –
Cantat-Gaudin et al. 2018 3.54 – – – – – – –
Loktin & Popova 2017 3.71 0.88 – 1122 – – – –
Kharchenko et al. 2016 4.20 0.62 – 2089 – – – –
Kharchenko et al. 2013 4.20 0.62 – 2089 – – – –
Kharchenko et al. 2012 4.20 0.62 – 2089 – – – –
Dias et al. 2002 3.74 0.40 – 2512 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0176 10.0 340.67 52.4 0.27 -1.34 -3.21 -69.97 0.0

πŸ’‘ Note: The % column shows the percentage of members that Berkeley 98 shares with each listed object.

Visualization
ℹ️
Berkeley 98 UCC
Berkeley 98 HUNT23
Berkeley 98 CANTAT20
Galactocentric position diagram