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About this observation
Mark Phillips
Time of observation
02/04/2020 - 21:28
Exoplanet HAT-P-3b
Observing location
Edinburgh, UK
250mm f4.8 OO Newtonian
Atik 460EX @-15C
R filter, bin 1x1
Capture: APT
Processing: HOPS 2.60
269x50s R filter 1x1, darks, bias, flats
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Latest exoplanet transit observation for the ExoClock project. Transit time is pretty close to the predicted one.
Terrible seeing which meant guiding was mostly >1" instead of the usual 0.5" and strong moonlight. So the data was not the best but the software managed a decent fit. The HOPS software is excellent.

Edit: this is the transit fit processed by the ExoClock team and shows an error in predicted transit time of 1.1 minutes.

magnitude: 11.025
depth: 0.01584
duration: 2.22 h

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