...me and my friend Maurizio Cervoni were planning an exoplanet session.....
"...why not try do detect an exoplanet transit with our observatory telescope?...."
ATA Observatory (Associazione Tuscolana Astronomia) has a good Meade 14" ACF sc telescope
on a powerful 10Micron GM2000 QCI mount, we thought that it should be capable to detect the
faint light loss that occurs when a little planet transit in front of his star......
...we should only decide a target and then choose the right integration time....
ETD exoplanet transit database
The Czech Astronomical Socie7ty has a powerful site where observers can select exoplanet targets
given observing latitude and longitude and date....
Here is it....
....KOI 0183b has no transit data in their database, but Kepler observation gives it a good transit
prediction for this night....and the transit depth seems large enough to be detected with our system.
SBIG ST 8XE with its ST237 guider chip has good QE and sensibilty.....180 seconds give us a good
SNR value....now only take a lot of frame and wait...
It tooks 4.5h to get all data (one should get data 1h before and after the predicted transit time in
order to have enough data to process....)....but then processing begins....
The results are astonishing!!!!....here is the detected transit:
this is residuals graph
....and these are the obj/reference/check stars used during the photometric processing...
The following image summarize the observed transit data....
...look at the transit depth information: 0.0017674 +- 0.000788 magnitudes.....
...error is less then 1 mmag!!!!...
We have detect it!!!!.....we used the ETD site to model our transit data and then we sent them
the results in order to record the transit in ETD database....
Here is a link to our observing session: KOI0183b observation
