Czernik 25

(FSR 0987; SAI 63; MWSC 795; OCL 493; MWSC 804; FoF 29)

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0.91 UTI
0.82
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 275
Radius (P>50% members) 4.8 [arcmin]
C3 classification AB
  • CN 0.82 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-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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Czernik 25 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is very well-studied in the literature.
Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Czernik 25 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– 93.427 6.946 0.445 -0.244 0.234 43.943
Hu & Soubiran 2025 93.432 6.939 – – – –
Almeida et al. 2025 93.431 6.954 – – – –
Zhang et al. 2024 93.431 6.951 – – – –
Hunt & Reffert 2024 93.431 6.951 0.444 -0.242 0.243 40.317
Cavallo et al. 2024 93.432 6.939 0.442 – – –
Hunt & Reffert 2023 93.431 6.951 0.444 -0.242 0.243 40.317
Just et al. 2023 93.416 6.955 – – – –
Dias et al. 2021 93.431 6.954 0.44 -0.226 0.255 –
Cantat-Gaudin et al. 2020 93.432 6.953 0.438 -0.222 0.252 –
Cantat-Gaudin & Anders 2020 93.432 6.953 0.438 -0.222 0.252 –
Liu & Pang 2019 93.441 6.941 0.445 -0.208 0.244 –
Bossini et al. 2019 93.432 6.953 – – – –
Soubiran et al. 2018 93.432 6.953 – – – 42.79
Bica et al. 2019 93.423 6.96 – – – –
Cantat-Gaudin et al. 2018 93.432 6.953 0.438 -0.222 0.252 –
Loktin & Popova 2017 93.42 6.954 – 0.188 -0.56 –
Kharchenko et al. 2016 93.416 6.955 – – – –
Kharchenko et al. 2013 93.423 6.953 – 0.22 0.22 –
Glushkova et al. 2010 93.435 6.949 – – – –
Froebrich et al. 2007 93.446 6.95 – – – –
Dias et al. 2002 93.275 6.983 – -0.25 -0.87 –

💡 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– 2.095 1.46 1.17 537 0.000 530 – –
Hu & Soubiran 2025 – – – – -0.150(5) – – –
Almeida et al. 2025 1.91 1.43 – 634 – 530 – –
Zhang et al. 2024 – – – – 0.127(1) – – –
Hunt & Reffert 2024 – – – – – 1058(1) – –
Cavallo et al. 2024 2.15 1.58 – 562 0.120 – – –
Hunt & Reffert 2023 2.05 1.21 1.17 537 – – – –
Just et al. 2023 – – – 331 – 200 – –
Dias et al. 2021 1.91 1.43 – 634 -0.020 – – –
Cantat-Gaudin et al. 2020 2.17 1.01 – 741 – – – –
Cantat-Gaudin & Anders 2020 2.14 – – – – – – –
Liu & Pang 2019 – – – 933 0.000 – – –
Bossini et al. 2019 2.66 1.46 – 363 0.000 – – –
Soubiran et al. 2018 2.14 – – – – – – –
Cantat-Gaudin et al. 2018 2.14 – – – – – – –
Loktin & Popova 2017 6.16 1.80 – 832 – – – –
Kharchenko et al. 2016 1.86 1.94 – 331 – – – –
Kharchenko et al. 2013 1.86 1.94 – 331 – – – –
Glushkova et al. 2010 1.91 1.15 – 447 – – – –
Dias et al. 2002 1.98 1.80 – 129 – – – –

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

Visualization
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Czernik 25 UCC
Czernik 25 HUNT23
Czernik 25 CANTAT20
Galactocentric position diagram