Refining the origins of the gamma-ray binary 1FGL J1018.6–5856

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Table 1.

Position of 1FGL J1018.6–5856 as reported in the UCAC4 and Gaia DR2 catalogs, and the position measured from the LBA data.

Catalog	Epoch	α	Δα	δ	Δδ
	(yr)		(mas)		(mas)
UCAC4	1997.74/1997.49^a	10^h18^m55.588^s	13	−58°56′45.981′′	16
LBA	2012.32	10^h18^m55.5771^s	1.4	−58°56′45.9474′′	0.8
Gaia DR2	2015.5	10^h18^m55.5746^s	0.02	−58°56′45.94049′′	0.02

Notes. For each entry we provide the epoch of the observation, the right ascension (α) and its uncertainty (Δα), and the declination (δ) and its uncertainty (Δδ).

^(a)

The coordinates provided by UCAC4 refer to slightly different epochs for α and δ, respectively.

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