Observation by Dave Smith: Exoplanet XO-4b

Uploaded by

Dave Smith

Observer

Dave Smith

Observed

2018 Apr 22 - 23:00

Uploaded

2018 Apr 23 - 14:54

Objects

Lightcurve
Exoplanet

Constellation

Hydra

Equipment
  • William Optics Megrez 90 with 0.8x FR
  • Atik 460EX mono camera
  • Muniwin processing software
Exposure

Multiple 60s

Location

Maldon

Target name

XO-4b

Title

Exoplanet XO-4b

About this image

Here is my first attempt at detecting an exoplanet. This was a tricky one for a first attempt as the drop in brightness was only 0.01 magnitude which is right on the limit of my uncertainties. With a little imagination it is just visible. The red lines indicate the predicted start and finish of the transit times (21:54 and 02:18 UT) There are some exoplanets that produce a drop in brightness of 0.02 mag or even greater but on any particular night there is a limited choice of stars to go for. This one is called XO-4b and was found on the Exoplanet Transit Database. My results could look more convincing with more data either side of the transit but dusk and dawn get in the way.

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