Open Access

Table 2

Observation summary.

KIC 10657664 KIC 9164561
RA (J2000) 19h13m59.87s 19h42m27.64s
DEC (J2000) 47°59′47.29″ 45°30′17.00″
Starting Date 16 July 2015 10 July 2015
Starting UT 23:00 00:10
Ending UT 03:30 05:13
Exposure time (s) 30 100
Frame number 334 153
Duty cycle (%) 58.8 82.6
Air mass (1) 1.13–1.06–1.25 1.09–1.04–1.39
Seeing (2) 0.61″ –0.93″ 1 .49″–2.28″
Resolution Å/pix 6.3–9.5 15.2–23.3

Notes.(1) Start–minimum–end.(2) FWHM of the target PSF along the spatial direction at the central wavelength of 7187 Å.

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