ESO 245 09

(MWSC 148)

0.15 UTI

0.25

C_N

0.24

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 25

Stellar density (N₅₀/rad) 1.2 [N/pc²]

C3 classification CC

C_N 0.25 Poorly populated
C_dens 0.24 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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ESO 245 09 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, well below the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 7 years.

⚠️ 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.

Relatively close Low extinction Old

Data

🔍 Search references for ESO 245 09 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–	28.452	-46.007	0.699	0.923	-2.065	7.504
Bica et al.	2019	28.438	-45.959	–	–	–	–
Loktin & Popova	2017	28.425	-45.953	–	15.217	-5.857	25.97
Dias et al.	2002	28.429	-45.953	–	8.45	0.57	–

💡 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–	1.175	0.975	–	1104	–	–	–	–
Loktin & Popova	2017	0.97	0.98	–	1072	–	–	–	–
Dias et al.	2002	1.38	0.97	–	1135	–	–	–	–

Visualization

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