Czernik 42

(MWSC 3650; OCL 245)

0.80 UTI

0.76

C_N

1.0

C_dens

0.5

C_C3

0.86

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 134

Radius (P>50% members) 1.3 [arcmin]

C_N 0.76 Rich
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.86 Well-studied
C_dup 1.0 Unique

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

Overview

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Czernik 42 is a rich, very dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.

Distant High extinction Near-solar metallicity Young

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 42 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	–	339.895	59.91	0.206	-3.412	-2.546	–
Almeida et al.	2025	339.91	59.909	–	–	–	–
Hunt & Reffert	2024	339.893	59.908	0.203	-3.409	-2.545	–
Cavallo et al.	2024	339.901	59.909	0.204	–	–	–
Hunt & Reffert	2023	339.893	59.908	0.203	-3.409	-2.545	–
Just et al.	2023	339.897	59.915	–	–	–	–
Dias et al.	2021	339.91	59.909	0.168	-3.364	-2.522	–
Cantat-Gaudin et al.	2020	339.896	59.908	0.182	-3.383	-2.527	–
Sánchez et al.	2020	339.95	59.915	–	-3.426	-2.69	–
Cantat-Gaudin & Anders	2020	339.896	59.908	0.182	-3.383	-2.527	–
Bica et al.	2019	339.943	59.871	–	–	–	–
Cantat-Gaudin et al.	2018	339.896	59.908	0.182	-3.383	-2.527	–
Kharchenko et al.	2016	339.897	59.915	–	–	–	–
Dias et al.	2014	339.95	59.915	–	-2.41	-1.56	–
Kharchenko et al.	2013	339.903	59.918	–	-2.78	-2.67	–
Kharchenko et al.	2012	339.903	59.918	–	-2.78	-2.67	–
Dias et al.	2002	339.95	59.915	–	-2.41	-1.56	–

💡 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	3.86	3.49	–	36	–	682	–	–
Hunt & Reffert	2024	–	–	–	–	–	1697*	–	–
Cavallo et al.	2024	4.72	3.60	–	282	0.700	–	–	–
Hunt & Reffert	2023	4.34	4.06	1.92	86	–	–	–	–
Just et al.	2023	–	–	–	5	–	318	–	–
Dias et al.	2021	3.86	3.49	–	36	-0.171	–	–	–
Cantat-Gaudin et al.	2020	4.43	3.35	–	71	–	–	–	–
Cantat-Gaudin & Anders	2020	4.74	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	4.74	–	–	–	–	–	–	–
Kharchenko et al.	2016	4.00	3.79	–	5	–	–	–	–
Kharchenko et al.	2013	4.00	3.79	–	5	–	–	–	–
Kharchenko et al.	2012	4.00	3.79	–	5	–	–	–	–
Dias et al.	2002	2.58	5.39	–	10	–	–	–	–

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

Visualization

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