Czernik 2

(MWSC 69; OCL 304; FSR 0510; FoF 894)

0.91 UTI

0.8

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 227

Stellar density (N₅₀/rad) 21.1 [N/pc²]

C3 classification AB

C_N 0.8 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Czernik 2 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close 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 age and metallicity parameters (see Parameters). It is very well-studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Palma et al. (2025)
Classified as optical pair (not dynamically associated) P115, along with HSC_983.

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for Czernik 2 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–	10.956	60.197	0.505	-4.055	-0.972	-83.559
Li et al.	2025	10.952	60.197	0.495	-4.06	-0.905	–
Almeida et al.	2025	10.961	60.182	–	–	–	–
Hunt & Reffert	2024	10.941	60.2	0.495	-4.041	-0.962	-82.989
Cavallo et al.	2024	10.991	60.179	0.496	–	–	–
Hunt & Reffert	2023	10.941	60.2	0.495	-4.041	-0.962	-82.989
Almeida et al.	2023	10.971	60.188	–	–	–	–
Just et al.	2023	10.915	60.149	–	–	–	–
Dias et al.	2021	10.961	60.182	0.497	-4.075	-0.909	–
Cantat-Gaudin et al.	2020	10.952	60.197	0.495	-4.06	-0.905	–
Sánchez et al.	2020	10.925	60.15	–	-4.067	-0.761	–
Cantat-Gaudin & Anders	2020	10.952	60.197	0.495	-4.06	-0.905	–
Liu & Pang	2019	10.951	60.182	0.496	-4.052	-0.963	–
Bica et al.	2019	10.926	60.197	–	–	–	–
Cantat-Gaudin et al.	2018	10.952	60.197	0.495	-4.06	-0.905	–
Loktin & Popova	2017	10.92	60.15	–	-1.652	-0.572	–
Kharchenko et al.	2016	10.915	60.149	–	–	–	–
Dias et al.	2014	10.925	60.15	–	-0.64	-1.01	–
Kharchenko et al.	2013	10.924	60.152	–	-0.71	-1.0	–
Kharchenko et al.	2012	10.924	60.152	–	-0.71	-1.0	–
Bukowiecki et al.	2011	10.992	60.213	–	–	–	–
Dias et al.	2002	10.925	60.15	–	-0.64	-1.01	–

💡 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]	B_frac	BSS
UCC	99999–	1.9	1.69	2.02	437	-0.036	685	0.69	–
Li et al.	2025	1.57	1.53	–	750	-0.143	–	–	–
Almeida et al.	2025	1.69	1.89	–	294	–	459	–	–
Hunt & Reffert	2024	–	–	–	–	–	794⁽¹⁾	–	–
Cavallo et al.	2024	2.01	1.73	–	437	0.350	–	–	–
Hunt & Reffert	2023	1.89	1.69	2.02	314	–	–	–	–
Almeida et al.	2023	1.76	1.79	–	351	0.037	398⁽¹⁾	0.69	–
Just et al.	2023	–	–	–	1327	–	1169	–	–
Dias et al.	2021	1.69	1.89	–	294	-0.036	–	–	–
Cantat-Gaudin et al.	2020	1.90	1.41	–	372	–	–	–	–
Cantat-Gaudin & Anders	2020	1.91	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	1590	-1.000	–	–	–
Cantat-Gaudin et al.	2018	1.91	–	–	–	–	–	–	–
Loktin & Popova	2017	1.70	0.94	–	447	–	–	–	–
Kharchenko et al.	2016	4.50	1.55	–	1327	–	–	–	–
Kharchenko et al.	2013	4.50	1.55	–	1327	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	685	–	–
Kharchenko et al.	2012	4.50	1.55	–	1327	–	–	–	–
Bukowiecki et al.	2011	2.03⁽¹⁾	2.08	–	11	–	–	–	–
Dias et al.	2002	1.77	2.29	–	100	–	–	–	–

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

Visualization

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