Czernik 15

(OCL 386; FSR 0644; MWSC 271)

0.74 UTI

0.74

C_N

0.8

C_dens

0.75

C_C3

0.7

C_lit

1.0

C_dup

N_m (P>50%) 99

Core radius and density 1.5 [pc], 4.0 [pc^-2]

C3 classification AB

C_N 0.74 Moderately populated
C_dens 0.8 Dense
C_C3 0.75 High quality
C_lit 0.7 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Czernik 15 is a moderately populated, 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, young cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is moderately studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Young

Li et al. (2026)
Tidal & Core radii: r_t=115+/-79.6 [pc], r_c=0.23+/-0.0 [pc]; stars within r_t: N~73

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P5, along with CWNU_133.

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.95 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.95 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.135, e_all=0.1245.

Data

🔍 Search references for Czernik 15 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–	50.798	52.216	0.325	0.322	-1.035	-84.513
Li et al.	2026	50.79	52.21	–	–	–	–
Almeida et al.	2025	50.727	52.198	–	–	–	–
Hunt & Reffert	2024	50.818	52.218	0.331	0.3	-1.03	-34.984
Cavallo et al.	2024	50.78	52.212	0.33	–	–	–
Hunt & Reffert	2023	50.818	52.218	0.331	0.3	-1.03	-34.984
Dias et al.	2021	50.727	52.198	0.322	0.35	-1.053	–
Cantat-Gaudin et al.	2020	50.781	52.223	0.321	0.33	-1.046	–
Cantat-Gaudin & Anders	2020	50.781	52.223	0.321	0.33	-1.046	–
Dias et al.	2019	50.8	52.25	0.309	0.396	-1.082	-84.82
Cantat-Gaudin et al.	2019	50.781	52.223	0.32	0.33	-1.07	–
Bica et al.	2019	50.793	52.224	–	–	–	–
Loktin & Popova	2017	50.805	52.233	–	0.958	-0.958	–
Sampedro et al.	2017	50.8	52.25	–	-0.59	-1.99	–
Dias et al.	2016	50.8	52.25	–	1.42	-0.01	–
Tadross	2014	50.8	52.25	–	–	–	–
Bukowiecki et al.	2011	50.796	52.224	–	–	–	–
Dias et al.	2002	50.8	52.25	–	–	–	–
Lynga	1987	50.792	52.26	–	–	–	–
Alter et al.	1970	50.797	52.247	–	–	–	–

💡 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–	2.585	2.565	2.18	42	-0.067	602	–	–
Almeida et al.	2025	2.10	2.40	–	68	–	154	–	–
Hunt & Reffert	2024	2.61	2.57	2.18	42	–	975⁽¹⁾	–	–
Cavallo et al.	2024	3.16	2.56	–	25	0.730	–	–	–
Hunt & Reffert	2023	2.61	2.57	2.18	42	–	–	–	–
Dias et al.	2021	2.10	2.40	–	68	-0.067	–	–	–
Cantat-Gaudin et al.	2020	2.38	2.30	–	59	–	–	–	–
Kounkel et al.	2020	3.00	2.65	–	275	–	–	–	–
Cantat-Gaudin & Anders	2020	2.85	–	–	–	–	–	–	–
Dias et al.	2019	2.60	2.81	–	31	-0.705	–	–	–
Cantat-Gaudin et al.	2019	2.85	–	–	–	–	–	–	–
Loktin & Popova	2017	2.15	1.42	–	178	–	–	–	–
Dias et al.	2016	1.16	3.15	–	20	–	–	–	–
Tadross	2014	1.16	3.15	–	20	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	602	–	–
Bukowiecki et al.	2011	2.57⁽¹⁾	2.05	–	40	–	–	–	–

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

Visualization

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