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.

Files associated with this observation

XO-4b.jpg (132.8 kB)

Like this image

Graham Winstanley, Peter Taylor, David Basey, Peter Mulligan, Andy Wilson, Peter Carson

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