This is another exoplanet discovery of the KELT Survey I participated in.
Here is the link to the paper in arxiv https://arxiv.org/abs/1712.03241
I observed this as an exoplanet candidate in July 18th 2016. It happened it was a real one.
In this observation I used my 12" telecope in Canelas remote observatory. The filter was a photometric V from Customs Scientific and 120s exposures.
The ccd camera was a SBIG ST-10XME and got a total of 146 images during the session.
Here is the plot of the transit signature for the Kelt-21b, and below the light curves from the discovery paper.
