Platais 4

(MWSC 467; HIP 23784 Group)

0.36 UTI

0.0

C_N

0.01

C_dens

0.25

C_C3

0.78

C_lit

1.0

C_dup

N₅₀ (P>50% members) 16

Stellar density (N₅₀/rad) 0.0 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.25 Low quality
C_lit 0.78 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Platais 4 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very large^* distance, well below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is well-studied in the literature.

(*): The parallax distance estimate (~10.74 kpc) differs significantly from the median photometric distance (~0.28 kpc).

Very close Low extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for Platais 4 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–	76.762	22.447	0.093	0.349	-1.071	–
Just et al.	2023	76.709	22.573	–	–	–	–
Donor et al.	2020	76.718	22.573	–	0.2	-1.87	15.2
Bica et al.	2019	76.849	22.284	–	–	–	–
Yen et al.	2018	76.733	22.604	2.9	1.99	-7.21	–
Kharchenko et al.	2016	76.709	22.573	–	–	–	–
Dias et al.	2014	76.842	22.278	–	0.93	-2.25	–
Kharchenko et al.	2013	76.717	22.573	–	0.8	-6.44	13.8
Gozha et al.	2012	76.842	22.278	–	–	–	–
Piskunov et al.	2008	76.719	22.366	–	–	–	–
Kharchenko et al.	2007	76.84	22.28	–	1.25	–	13.8
Piskunov et al.	2007	76.719	22.366	–	–	–	–
van den Bergh	2006	76.842	22.278	–	–	–	–
Kharchenko et al.	2005	76.72	22.37	–	2.36	-6.33	13.8
Dias et al.	2002	76.842	22.278	–	1.65	-6.49	16.26

💡 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–	0.28	0.78	–	174	-0.310	594	–	–
Just et al.	2023	–	–	–	355	–	18	–	–
Donor et al.	2020	–	–	–	–	-0.310	–	–	–
Yen et al.	2018	0.30	0.61	–	204	–	–	–	–
Kharchenko et al.	2016	0.28	0.84	–	355	–	–	–	–
Kharchenko et al.	2013	0.28	0.84	–	355	–	–	–	–
Gozha et al.	2012	0.28	–	–	100	–	562	–	–
Piskunov et al.	2008	0.28	0.78	–	174	–	1109⁽¹⁾	–	–
Piskunov et al.	2007	0.28	0.78	–	174	–	627	–	–
van den Bergh	2006	0.28	–	–	100	–	–	–	–
Kharchenko et al.	2005	0.28	0.78	–	174	–	–	–	–
Dias et al.	2002	0.28	–	–	100	–	–	–	–

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

Visualization

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