Platais 6

(HIP 29713 Group; MWSC 821)

0.32 UTI

0.0

C_N

0.07

C_dens

0.25

C_C3

0.65

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 0.4 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.07 Very loose
C_C3 0.25 Low quality
C_lit 0.65 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Platais 6 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, young cluster (see Parameters). It is moderately studied in the literature.

Very close Low extinction Massive Near-solar metallicity Young

Liu et al. (2025)
Classified as primordial binary cluster 332 along with HSC_1553, and of multiple system 55 along with HSC_1553 and Theia_792.

Palma et al. (2025)
Part of multiple system G121, along with Theia_792 and HSC_1553.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for Platais 6 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–	94.102	2.929	4.275	-0.844	-12.875	31.861
Liu et al.	2025	94.9	5.3	4.41	-1.1	-12.68	29.13
Zhang et al.	2024	94.896	5.301	–	–	–	–
Cavallo et al.	2024	95.039	1.5	4.406	–	–	–
Hunt & Reffert	2023	94.896	5.301	4.407	-1.096	-12.679	29.134
Bica et al.	2019	93.855	3.852	–	–	–	–
Dias et al.	2014	93.858	3.845	–	-0.45	-2.6	–
Gozha et al.	2012	93.858	3.845	–	–	–	–
Piskunov et al.	2008	93.854	3.919	–	–	–	–
Kharchenko et al.	2007	93.85	3.85	–	1.57	–	13.1
van den Bergh	2006	93.858	3.845	–	–	–	–
Kharchenko et al.	2005	93.85	3.92	–	-4.45	-4.27	26.0

💡 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–	0.35	0.05	0.57	60	0.029	2455	–	–
Liu et al.	2025	0.23	0.05	–	56	–	–	–	–
Zhang et al.	2024	–	–	–	–	0.098⁽¹⁾	–	–	–
Cavallo et al.	2024	0.23	0.22	–	22	-0.040	–	–	–
Hunt & Reffert	2023	0.23	0.15	0.57	48	–	–	–	–
Gozha et al.	2012	0.35	–	–	60	–	2455	–	–
Piskunov et al.	2008	0.35	0.00	–	62	–	–	–	–
van den Bergh	2006	0.35	–	–	60	–	–	–	–
Kharchenko et al.	2005	0.35	0.00	–	62	–	–	–	–

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

Visualization

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