Czernik 30

(MWSC 1253; OCL 574)

0.95 UTI

0.77

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 162

Radius (P>50% members) 1.6 [arcmin]

C_N 0.77 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Czernik 30 is a rich, very dense object of very high C3 quality. Its parallax locates it at a large distance, well above 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 age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

Very distant Low extinction Massive Near-solar metallicity Old

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Czernik 30 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	–	112.795	-9.946	0.128	-0.613	-0.072	81.361
Hu & Soubiran	2025	112.797	-9.947	–	–	–	–
Almeida et al.	2025	112.799	-9.948	–	–	–	–
Hunt & Reffert	2024	112.795	-9.946	0.133	-0.612	-0.066	81.737
Cavallo et al.	2024	112.797	-9.947	0.128	–	–	–
Hunt & Reffert	2023	112.795	-9.946	0.133	-0.612	-0.066	81.737
Just et al.	2023	112.79	-9.938	–	–	–	–
Perren et al.	2022	112.796	-9.945	–	–	–	–
Dias et al.	2021	112.799	-9.948	0.113	-0.592	-0.106	–
Cantat-Gaudin et al.	2020	112.796	-9.945	0.11	-0.587	-0.097	–
Sánchez et al.	2020	112.825	-9.967	–	-0.514	-0.308	–
Donor et al.	2020	112.797	-9.94	–	-0.69	-0.1	81.3
Cantat-Gaudin & Anders	2020	112.796	-9.945	0.11	-0.587	-0.097	–
Bica et al.	2019	112.786	-9.944	–	–	–	–
Cantat-Gaudin et al.	2018	112.796	-9.945	0.11	-0.587	-0.097	–
Loktin & Popova	2017	112.785	-9.94	–	-1.874	1.12	79.9
Kharchenko et al.	2016	112.79	-9.938	–	–	–	–
Kharchenko et al.	2013	112.797	-9.94	–	-1.89	0.94	–
Gozha et al.	2012	112.825	-9.967	–	–	–	–
Dias et al.	2002	112.825	-9.967	–	-1.43	-1.94	79.9

💡 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	–	–	–	–	-0.330*	–	–	–
Almeida et al.	2025	5.94	0.96	–	2985	–	2172	–	–
Hunt & Reffert	2024	–	–	–	–	–	1037*	–	–
Cavallo et al.	2024	5.04	1.23	–	4169	-0.740	–	–	–
Hunt & Reffert	2023	6.23	0.91	1.51	1081	–	–	–	–
Just et al.	2023	–	–	–	1585	–	3133	–	–
Perren et al.	2022	6.55	0.90	–	3631	-0.320	7200	0.79	–
Dias et al.	2021	5.94	0.96	–	2985	-0.282	–	–	–
Cantat-Gaudin et al.	2020	6.64	0.62	–	2884	–	–	–	–
Donor et al.	2020	–	–	–	–	-0.400	–	–	–
Cantat-Gaudin & Anders	2020	7.19	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	7.19	–	–	–	–	–	–	–
Loktin & Popova	2017	2.45	0.09	–	490	–	–	–	–
Kharchenko et al.	2016	6.81	0.32	–	1585	–	–	–	–
Kharchenko et al.	2013	6.81	0.32	–	1585	-0.380	–	–	–
Gozha et al.	2012	7.14	–	–	2512	-0.380	–	–	–
Dias et al.	2002	9.12	0.74	–	2512	-0.210	–	–	–

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

Visualization

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