Kronberger 52

(MWSC 3211; DSH J1958.1+3053; FSR 0177)

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0.75 UTI
0.79
CN
0.65
Cdens
1.0
CC3
0.65
Clit
1.0
Cdup
Nm (P>50%) 194
Core radius and density 2.4 [pc], 3.2 [pc-2]
C3 classification AA
  • CN 0.79 Rich
  • Cdens 0.65 Moderately dense
  • CC3 1.0 Very high quality
  • Clit 0.65 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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Kronberger 52 is a rich, moderately dense object of very high C3 quality. Its parallax locates it at a large* distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~8.30 kpc) differs significantly from the median photometric distance (~4.99 kpc).

Note: This object contains blue stragglers according to at least one source.

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

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.14 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.14 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.0282, e_all=0.0709.

Data
🔍 Search references for Kronberger 52 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– 299.538 30.88 0.12 -2.629 -4.865 -13.446
Almeida et al. 2025 299.535 30.882 – – – –
Hunt & Reffert 2024 299.539 30.879 0.126 -2.637 -4.868 -13.255
Cavallo et al. 2024 299.534 30.874 0.125 – – –
Hunt & Reffert 2023 299.539 30.879 0.126 -2.637 -4.868 -13.255
Just et al. 2023 299.528 30.88 – – – –
Jadhav & Subramaniam 2021 299.536 30.883 – – – –
Dias et al. 2021 299.535 30.882 0.093 -2.634 -4.821 –
Cantat-Gaudin et al. 2020 299.536 30.883 0.106 -2.622 -4.837 –
Cantat-Gaudin & Anders 2020 299.536 30.883 0.106 -2.622 -4.837 –
Bica et al. 2019 299.531 30.892 – – – –
Cantat-Gaudin et al. 2018 299.536 30.883 0.106 -2.622 -4.837 –
Dias et al. 2018 – – – -3.35 -2.95 –
Sampedro et al. 2017 299.533 30.888 – -1.32 -4.44 –
Kharchenko et al. 2016 299.528 30.88 – – – –
Tadross 2014 299.533 30.888 – – – –
Dias et al. 2014 299.533 30.888 – -0.88 -3.8 –
Kharchenko et al. 2013 299.533 30.883 – -2.43 -4.1 –
Bukowiecki et al. 2011 299.533 30.889 – – – –
Kronberger et al. 2006 299.533 30.888 – – – –
Dias et al. 2002 299.533 30.888 – -0.87 -3.79 –

💡 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– 4.99 3.09 2.67 407 -0.137 1169 – 1
Almeida et al. 2025 5.33 2.86 – 644 – 1249 – –
Hunt & Reffert 2024 6.76 3.88 2.67 102 – 7679(1) – –
Cavallo et al. 2024 4.51 3.73 – 324 -0.350 – – –
Hunt & Reffert 2023 6.76 3.88 2.67 102 – – – –
Just et al. 2023 – – – 1000 – 139 – –
Jadhav & Subramaniam 2021 4.99 2.49 – 407 – 1169 – 1(1)
Dias et al. 2021 5.33 2.86 – 644 0.076 – – –
Cantat-Gaudin et al. 2020 4.99 2.49 – 407 – – – –
Kounkel et al. 2020 4.76 2.94 – 324 – – – –
Cantat-Gaudin & Anders 2020 7.41 – – – – – – –
Cantat-Gaudin et al. 2018 7.41 – – – – – – –
Kharchenko et al. 2016 2.73 3.09 – 1000 – – – –
Tadross 2014 0.70 7.73 – 130 – – – –
Kharchenko et al. 2013 2.73 3.09 – 1000 – – – –
Bukowiecki et al. 2012 – – – – – 503 – –
Bukowiecki et al. 2011 3.80(1) 2.37 – 631 – – – –
Dias et al. 2002 0.70 7.73 – 129 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0092 12.9 299.54 30.88 0.15 -2.62 -4.9 -14.47 0.0

💡 Note: The % column shows the percentage of members that Kronberger 52 shares with each listed object.

Visualization
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Kronberger 52 UCC
Kronberger 52 HUNT23
Kronberger 52 CANTAT20
Galactocentric position diagram