Juchert 23

(SAI 42; DSH J0507.6+1734; FSR 0854)

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0.71 UTI
0.81
CN
1.0
Cdens
0.75
CC3
0.5
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 247
Radius (P>50% members) 5.7 [arcmin]
  • CN 0.81 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.5 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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Juchert 23 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, well 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 parameter (see Parameters). It is moderately studied in the literature.

Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Low extinction Massive Near-solar metallicity Old

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Juchert 23 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 – 76.912 17.59 0.379 0.305 -2.494 0.355
Hu & Soubiran 2025 76.904 17.579 – – – –
Zhang et al. 2024 76.923 17.589 – – – –
Hunt & Reffert 2024 76.923 17.589 0.383 0.324 -2.495 5.096
Cavallo et al. 2024 76.904 17.579 0.382 – – –
Hunt & Reffert 2023 76.923 17.589 0.383 0.324 -2.495 5.096
Bica et al. 2019 76.912 17.585 – – – –
Glushkova et al. 2010 76.915 17.6 – – – –
Kronberger et al. 2006 76.912 17.582 – – – –

💡 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
Hu & Soubiran 2025 – – – – -0.270* – – –
Zhang et al. 2024 – – – – -0.148* – – –
Hunt & Reffert 2024 – – – – – 1240* – –
Cavallo et al. 2024 2.39 0.83 – 1230 0.430 – – –
Hunt & Reffert 2023 2.49 0.96 0.32 1107 – – – –
Glushkova et al. 2010 2.16 1.92 – 501 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 200 80.6 76.91 17.59 0.38 0.31 -2.49 0.36 0.0
CWWDL 41 38.5 76.91 17.58 0.38 0.32 -2.5 0.68 0.0

💡 Note: The % column shows the percentage of members that Juchert 23 shares with each listed object.

Visualization
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Juchert 23 UCC
Juchert 23 HUNT23
Galactocentric position diagram