Czernik 38

(MWSC 3002; OCL 95; FSR 0109)

0.88 UTI

0.85

C_N

1.0

C_dens

1.0

C_C3

0.77

C_lit

1.0

C_dup

N_m (P>50%) 368

Core radius and density 1.0 [pc], 20 [pc^-2]

C3 classification AA

C_N 0.85 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.77 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 38 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.

Relatively close High extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.96 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.96 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.0938, e_all=0.1842.

Data

🔍 Search references for Czernik 38 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–	282.451	4.97	0.373	-1.793	-5.063	18.212
Almeida et al.	2025	282.444	4.963	–	–	–	–
Hunt & Reffert	2024	282.453	4.962	0.369	-1.777	-5.056	37.794
Cavallo et al.	2024	282.452	4.973	0.375	–	–	–
Hunt & Reffert	2023	282.453	4.962	0.369	-1.777	-5.056	37.794
Angelo et al.	2023	282.442	4.959	–	-1.8	-5.06	–
Just et al.	2023	282.44	4.958	–	–	–	–
Dias et al.	2021	282.444	4.963	0.377	-1.829	-4.984	–
Cantat-Gaudin et al.	2020	282.451	4.965	0.383	-1.84	-5.005	–
Sánchez et al.	2020	282.425	4.933	–	-1.669	-4.883	–
Zhong et al.	2020	282.451	4.965	–	-1.84	-5.005	27.452
Cantat-Gaudin & Anders	2020	282.451	4.965	0.383	-1.84	-5.005	–
Soubiran et al.	2018	282.451	4.965	–	–	–	57.39
Bica et al.	2019	282.451	4.956	–	–	–	–
Cantat-Gaudin et al.	2018	282.451	4.965	0.383	-1.84	-5.005	–
Dib et al.	2018	282.447	4.96	–	–	–	–
Loktin & Popova	2017	282.45	4.974	–	-2.574	-5.211	–
Sampedro et al.	2017	282.425	4.933	–	-1.06	-1.11	–
Joshi et al.	2016	282.447	4.96	–	–	–	–
Kharchenko et al.	2016	282.44	4.958	–	–	–	–
Tadross	2014	282.425	4.933	–	–	–	–
Kharchenko et al.	2013	282.447	4.96	–	-3.08	-5.29	–
Bukowiecki et al.	2011	282.458	4.955	–	–	–	–
Dias et al.	2002	282.425	4.933	–	1.77	-4.86	–
Lynga	1987	282.415	4.93	–	–	–	–

💡 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–	2.21	4.6	2.04	138	0.143	1915	–	–
Almeida et al.	2025	2.08	4.02	–	411	–	1915	–	–
Hunt & Reffert	2024	2.34	5.35	2.04	138	–	3621⁽¹⁾	–	–
Cavallo et al.	2024	2.43	5.02	–	200	0.610	–	–	–
Hunt & Reffert	2023	2.35	5.35	2.04	138	–	–	–	–
Angelo et al.	2023	1.62	5.49	–	282	0.100	4⁽¹⁾	–	–
Just et al.	2023	–	–	–	20	–	373	–	–
Dias et al.	2021	2.08	4.02	–	411	0.186	–	–	–
Cantat-Gaudin et al.	2020	2.47	4.25	–	186	–	–	–	–
Kounkel et al.	2020	2.60	4.55	–	100	–	–	–	–
Zhong et al.	2020	2.42⁽¹⁾	–	–	–	0.000	–	–	–
Cantat-Gaudin & Anders	2020	2.42	–	–	–	–	–	–	–
Soubiran et al.	2018	2.42	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.42	–	–	–	–	–	–	–
Dib et al.	2018	1.76	–	–	20	–	–	–	–
Loktin & Popova	2017	2.73	3.59	–	646	–	–	–	–
Joshi et al.	2016	1.76	4.60	–	20	–	–	–	–
Kharchenko et al.	2016	1.76	4.60	–	20	–	–	–	–
Tadross	2014	1.91	6.40	–	10	–	–	–	–
Kharchenko et al.	2013	1.76	4.60	–	20	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	2638	–	–
Bukowiecki et al.	2011	1.54⁽¹⁾	3.31	–	1000	–	–	–	–
Dias et al.	2002	1.91	6.40	–	10	–	–	–	–

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

Visualization

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