Observations of the transiting planet TrES-2 with the AIU Jena telescope in Gro{\ss}schwabhausen

TL;DR

This paper reports high-precision photometric observations of the transiting planet TrES-2 using the AIU Jena telescope, improving its orbital parameters through detailed light curve analysis.

Contribution

First detailed high-precision photometric monitoring of TrES-2 from the AIU Jena observatory, enhancing orbital parameter accuracy.

Findings

Recovered all observed planetary transits.

Analyzed seven transits over nearly a year.

Improved orbital parameters of TrES-2.

Abstract

We have started high precision photometric monitoring observations at the AIU Jena observatory in Grossschwabhausen near Jena in fall 2006. We used a 25 cm Cassegrain telescope equipped with a CCD-camera mounted picky-pack on a 90 cm telescope. To test the obtainable photometric precision, we observed stars with known transiting planets. We could recover all planetary transits observed by us. We observed the parent star of the transiting planet TrES-2 over a longer period in Grossschwabhausen. Between March and November 2007 seven different transits and almost a complete orbital period were analyzed. Overall, in 31 nights of observation 3423 exposures (in total 57.05 h of observation) of the TrES-2 parent star were taken. Here, we present our methods and the resulting light curves. Using our observations we could improve the orbital parameters of the system.