ESO 494 09

(MWSC 1400)

0.64 UTI

0.29

C_N

1.0

C_dens

0.62

C_C3

0.65

C_lit

1.0

C_dup

C3 classification CA

Number of members (P>50%) 29

Radius (P>50% members) 2.5 [arcmin]

C_N 0.29 Poorly populated
C_dens 1.0 Very dense
C_C3 0.62 Intermediate 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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ESO 494 09 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~2.97 kpc) differs significantly from the median photometric distance (~2.06 kpc).

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for ESO 494 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	–	119.738	-27.661	0.337	-2.562	3.79	36.926
Hu & Soubiran	2025	119.71	-27.645	–	–	–	–
Hunt & Reffert	2024	119.726	-27.673	0.341	-2.563	3.806	36.864
Cavallo et al.	2024	119.71	-27.645	0.34	–	–	–
Hunt & Reffert	2023	119.726	-27.673	0.341	-2.563	3.806	36.864
Just et al.	2023	119.811	-27.581	–	–	–	–
Bica et al.	2019	119.811	-27.584	–	–	–	–
Loktin & Popova	2017	119.82	-27.582	–	-1.557	2.311	–
Kharchenko et al.	2016	119.811	-27.581	–	–	–	–
Dias et al.	2014	119.817	-27.585	–	-1.77	3.51	–
Kharchenko et al.	2013	119.817	-27.583	–	-2.62	1.0	–
Dias et al.	2002	119.817	-27.585	–	-1.78	3.5	–

💡 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
Hu & Soubiran	2025	–	–	–	–	-0.120*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	337*	–	–
Cavallo et al.	2024	2.83	1.51	–	589	0.430	–	–	–
Hunt & Reffert	2023	2.78	1.39	1.20	619	–	–	–	–
Just et al.	2023	–	–	–	543	–	107	–	–
Loktin & Popova	2017	2.21	0.70	–	977	–	–	–	–
Kharchenko et al.	2016	1.91	0.97	–	543	–	–	–	–
Kharchenko et al.	2013	1.91	0.97	–	543	–	–	–	–
Dias et al.	2002	1.21	1.30	–	63	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 1402	86.2	119.72	-27.66	0.34	-2.56	3.8	37.53	0.13

💡 Note: The % column shows the percentage of members that ESO 494 09 shares with each listed object.

Visualization

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