First light for GRAVITY Wide - Large separation fringe tracking for the Very Large Telescope Interferometer

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Table 1

Binary separation and flux ratio for θ¹ Ori B, θ¹ Ori C and θ¹ Ori D.

Object	Date	Sep. [mas]	f
θ¹ Ori B	Nov. 1, 2019	4.65 ± 0.07	0.3224 ± 0.0006
	Dec. 15, 2021	15.66 ± 0.01	0.3504 ± 0.0022
θ¹ Ori C	Nov. 1, 2019	23.39 ± 0.14	0.3099 ± 0.0021
θ¹ Ori D	Nov. 2, 2019	1.41 ± 0.02	0.3419 ± 0.0064

Notes. Here, we give the binary separation (sep.) and flux ratio (f) for the multiple star systems observed with GRAVITY Wide in November 2019 and December 2021.

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