OC 0494

0.26 UTI

0.5

C_N

0.14

C_dens

0.5

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 51

Core radius and density 2.9 [pc], 0.7 [pc^-2]

C3 classification BB

C_N 0.5 Moderately populated
C_dens 0.14 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OC 0494 is a moderately populated, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.

Very distant High extinction Massive Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.43 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.43 (50th percentile).

Data

🔍 Search references for OC 0494 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–	133.098	-47.962	0.155	-3.614	3.846	54.172
Hunt & Reffert	2024	133.092	-47.963	0.152	-3.605	3.846	54.002
Cavallo et al.	2024	133.105	-47.956	0.155	–	–	–
Hunt & Reffert	2023	133.092	-47.963	0.152	-3.605	3.846	54.002
Hao et al.	2022	133.081	-47.962	0.164	-3.595	3.843	53.836

💡 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–	6.03	3.5	2.16	26	0.291	1793	–	–
Hunt & Reffert	2024	6.03	3.66	2.16	21	–	1793⁽¹⁾	–	–
Cavallo et al.	2024	4.72	3.34	–	51	0.350	–	–	–
Hunt & Reffert	2023	6.03	3.66	2.16	21	–	–	–	–
Hao et al.	2022	–	2.51	–	32	0.233	–	–	–

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

Visualization

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