Platais 1

(MWSC 3519)

0.29 UTI

0.0

C_N

0.04

C_dens

0.12

C_C3

0.65

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 17

Radius (P>50% members) 6.0 [arcmin]

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.12 Very low quality
C_lit 0.65 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Platais 1 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~5.55 kpc) differs significantly from the median photometric distance (~2.08 kpc).

Relatively close Moderate extinction Intermediate age

Data

🔍 Search references for Platais 1 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	–	322.557	48.973	0.18	-3.399	-3.73	-39.583
He et al.	2023	322.365	48.884	0.329	-3.821	-4.18	-24.16
Just et al.	2023	322.51	48.997	–	–	–	–
Loktin & Popova	2017	322.515	48.977	–	-1.224	-0.197	-15.4
Kharchenko et al.	2016	322.51	48.997	–	–	–	–
Dias et al.	2014	322.508	48.977	–	-2.65	-1.31	–
Kharchenko et al.	2013	322.515	49.0	–	-4.54	-0.5	-15.4
Gozha et al.	2012	322.508	48.977	–	–	–	–
Kharchenko et al.	2012	322.515	49.0	–	-4.54	-0.5	-15.4
Kharchenko et al.	2007	322.51	48.98	–	0.08	–	–
van den Bergh	2006	322.508	48.977	–	–	–	–
Dias et al.	2002	322.508	48.977	–	-2.65	-1.31	-26.73

💡 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]	Bfr	BSS
He et al.	2023	2.82	1.90	–	200	–	–	–	–
Just et al.	2023	–	–	–	158	–	482	–	–
Loktin & Popova	2017	1.34	1.09	–	195	–	–	–	–
Kharchenko et al.	2016	3.51	2.65	–	158	–	–	–	–
Kharchenko et al.	2013	3.51	2.65	–	158	–	–	–	–
Gozha et al.	2012	1.27	–	–	175	–	–	–	–
Kharchenko et al.	2012	3.51	2.65	–	158	–	–	–	–
van den Bergh	2006	1.27	1.12	–	174	–	–	–	–
Dias et al.	2002	1.27	1.11	–	175	–	–	–	–

Visualization

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