Platais 11

0.01 UTI

0.0

C_N

0.03

C_dens

0.0

C_C3

0.0

C_lit

1.0

C_dup

C3 classification DD

Number of members (P>50%) 19

Radius (P>50% members) 7.1 [arcmin]

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.0 Very low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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Platais 11 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane. It is catalogued as an intermediate-age cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 12 years.

(*): The parallax distance estimate (~5.81 kpc) differs significantly from the median photometric distance (~0.23 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Very close Intermediate age

Data

🔍 Search references for Platais 11 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	–	206.906	-66.042	0.172	-3.988	-5.079	4.879
Dias et al.	2014	206.988	-66.02	–	-4.12	-5.11	–
van den Bergh	2006	206.988	-66.02	–	–	–	–

💡 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
van den Bergh	2006	0.23	–	–	200	–	–	–	–

Visualization

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