NGC 433

(MWSC 110)

0.91 UTI

0.82

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N_m (P>50%) 296

Core radius and density 1.5 [pc], 10 [pc^-2]

C3 classification AB

C_N 0.82 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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NGC 433 is a rich, very 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 age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Young

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

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=0.1617, e_all=0.0805.

Ahumada & Lapasset (2007)
The colour-magnitude diagram of stars inside a radius of 3' around the centre of coordinates was examined.

Data

🔍 Search references for NGC 433 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–	18.801	60.135	0.47	-1.448	-0.79	-23.02
Almeida et al.	2025	18.793	60.132	–	–	–	–
Zhang et al.	2024	18.79	60.132	–	–	–	–
Hunt & Reffert	2024	18.79	60.132	0.468	-1.447	-0.814	-28.091
Cavallo et al.	2024	18.779	60.127	0.474	–	–	–
Hunt & Reffert	2023	18.79	60.132	0.468	-1.447	-0.814	-28.091
Almeida et al.	2023	18.788	60.132	–	–	–	–
Just et al.	2023	18.791	60.12	–	–	–	–
Jaehnig et al.	2021	18.791	60.128	0.497	-1.441	-0.709	–
Rain et al.	2021	18.798	60.133	0.463	-1.422	-0.72	–
Dias et al.	2021	18.793	60.132	0.473	-1.44	-0.732	–
Cantat-Gaudin et al.	2020	18.798	60.133	0.463	-1.422	-0.72	–
Cantat-Gaudin & Anders	2020	18.798	60.133	0.463	-1.422	-0.72	–
Soubiran et al.	2018	18.798	60.133	–	–	–	-34.94
Cantat-Gaudin et al.	2018	18.798	60.133	0.463	-1.422	-0.72	–
Dias et al.	2018	–	–	–	-0.73	-0.65	–
Dib et al.	2018	18.801	60.123	–	–	–	–
Loktin & Popova	2017	18.795	60.127	–	-2.264	-0.731	-36.9
Sampedro et al.	2017	18.796	60.127	–	-1.87	1.0	–
Joshi et al.	2016	18.801	60.123	–	–	–	–
Kharchenko et al.	2016	18.791	60.12	–	–	–	–
Kharchenko et al.	2013	18.801	60.123	–	-2.32	-1.6	-36.9
Gozha et al.	2012	18.796	60.127	–	–	–	–
Kharchenko et al.	2012	18.801	60.123	–	-2.32	-1.6	-36.91
Bukowiecki et al.	2011	18.796	60.126	–	–	–	–
Piskunov et al.	2008	18.78	60.126	–	–	–	–
Ahumada & Lapasset	2007	18.8	60.133	–	–	–	–
van den Bergh	2006	18.8	60.133	–	–	–	–
Kharchenko et al.	2005	18.79	60.13	–	-5.7	-0.37	–
Kharchenko et al.	2003	18.81	60.14	–	-3.84	-0.62	–
Dias et al.	2002	18.796	60.127	–	-2.32	-1.6	-36.91
Lynga	1987	18.822	60.134	–	–	–	–
Sulentic et al.	1973	18.823	60.132	–	–	–	–

💡 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–	2.0	1.89	2.63	65	-0.282	479	0.51	0
Almeida et al.	2025	1.80	2.00	–	38	–	546	–	–
Zhang et al.	2024	–	–	–	–	-0.461⁽¹⁾	–	–	–
Hunt & Reffert	2024	1.95	1.89	2.63	148	–	1023⁽¹⁾	–	–
Cavallo et al.	2024	2.12	2.27	–	174	0.110	–	–	–
Hunt & Reffert	2023	1.95	1.89	2.63	148	–	–	–	–
Almeida et al.	2023	1.82	2.24	–	72	-0.104	459⁽¹⁾	0.51	–
Just et al.	2023	–	–	–	65	–	52	–	–
Jaehnig et al.	2021	2.01⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	2.03	2.71	–	32	–	–	–	0
Dias et al.	2021	1.80	2.00	–	38	0.048	–	–	–
Cantat-Gaudin et al.	2020	2.05	1.80	–	138	–	–	–	–
Kounkel et al.	2020	2.03	1.80	–	151	–	–	–	–
Cantat-Gaudin & Anders	2020	2.03	–	–	–	–	–	–	–
Soubiran et al.	2018	2.03	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.03	–	–	–	–	–	–	–
Dib et al.	2018	1.65	–	–	65	–	–	–	–
Loktin & Popova	2017	1.92	2.53	–	11	–	–	–	–
Joshi et al.	2016	1.65	1.89	–	65	–	479	–	–
Kharchenko et al.	2016	1.65	1.89	–	65	–	–	–	–
Kharchenko et al.	2013	1.65	1.89	–	65	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	993	–	–
Gozha et al.	2012	2.32	–	–	32	-0.680	479	–	–
Kharchenko et al.	2012	1.65	1.89	–	65	–	–	–	–
Bukowiecki et al.	2011	1.75⁽¹⁾	1.89	–	56	–	–	–	–
Paunzen et al.	2010	–	–	–	–	-0.680	–	–	–
Piskunov et al.	2008	2.00	1.74	–	45	–	–	–	–
Ahumada & Lapasset	2007	–	2.71	–	32	–	–	–	0
van den Bergh	2006	2.32	2.71	–	32	–	–	–	–
Kharchenko et al.	2005	2.00	1.74	–	45	–	–	–	–
Kharchenko et al.	2003	2.32	2.27	–	–	–	–	–	–
Dias et al.	2002	2.32	2.71	–	32	–	–	–	–

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

Visualization

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