Kronberger 1

(MWSC 555)

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0.65 UTI
0.43
CN
0.87
Cdens
0.38
CC3
0.82
Clit
0.98
Cdup
C3 classification CB
Number of members (P>50%) 43
Radius (P>50% members) 5.0 [arcmin]
  • CN 0.43 Poorly populated
  • Cdens 0.87 Dense
  • CC3 0.38 Low quality
  • Clit 0.82 Well-studied
  • Cdup 0.98 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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Kronberger 1 is a poorly populated, dense object of low 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, very young cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is well-studied in the literature.

Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry, and a moderate percentage with at least one entry reported in the same catalogue. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

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

Data
🔍 Search references for Kronberger 1 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 – 82.036 34.784 0.462 -0.039 -2.225 –
Almeida et al. 2025 82.087 34.775 – – – –
Celli et al. 2024 82.088 34.775 – – – –
Just et al. 2023 82.078 34.786 – – – –
Dias et al. 2021 82.087 34.775 0.432 -0.054 -2.268 –
Cantat-Gaudin et al. 2020 82.089 34.777 0.443 -0.05 -2.199 –
Cantat-Gaudin & Anders 2020 82.089 34.777 0.443 -0.05 -2.199 –
Cantat-Gaudin et al. 2018 82.089 34.777 0.443 -0.05 -2.199 –
Loktin & Popova 2017 82.08 34.775 – -1.21 -4.13 13.0
Kharchenko et al. 2016 82.078 34.786 – – – –
Dias et al. 2014 82.087 34.775 – -1.21 -4.13 –
Kharchenko et al. 2013 82.087 34.785 – -0.3 -3.67 13.0
Kharchenko et al. 2012 82.087 34.785 – -0.3 -3.88 13.0
Glushkova et al. 2010 82.092 34.773 – – – –
Kronberger et al. 2006 82.088 34.775 – – – –
Dias et al. 2002 82.088 34.775 – -1.21 -4.13 13.0

💡 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 1.92 1.70 – 11 – 252 – –
Celli et al. 2024 – – – 6 – 321 – –
Just et al. 2023 – – – 8 – 13 – –
Dias et al. 2021 1.92 1.70 – 11 -0.177 – – –
Cantat-Gaudin et al. 2020 2.33 2.05 – 6 – – – –
Cantat-Gaudin & Anders 2020 2.12 – – – – – – –
Cantat-Gaudin et al. 2018 2.12 – – – – – – –
Loktin & Popova 2017 1.63 1.61 – 30 – – – –
Kharchenko et al. 2016 1.92 1.78 – 8 – – – –
Kharchenko et al. 2013 1.92 1.78 – 8 – – – –
Kharchenko et al. 2012 1.00 1.55 – 43 – – – –
Glushkova et al. 2010 0.80 1.33 – 126 – – – –
Kronberger et al. 2006 1.90* 1.61* – 32* – – – –
Dias et al. 2002 1.90 1.61 – 32 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
FSR 0777 32.6 81.9 34.75 0.47 -0.01 -2.29 – 0.47
Stock 8 2.3 81.96 34.43 0.46 0.08 -2.34 -59.37 0.91

💡 Note: The % column shows the percentage of members that Kronberger 1 shares with each listed object.

Visualization
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Kronberger 1 UCC
Kronberger 1 CANTAT20
Galactocentric position diagram