Here is the Exo-Planet transit of HAT-P-55b taken on the 11th May 2024 by Simon Dawes for the ExoClock project. Simon did the observation on the same night as the ‘Great Aurora’, it finished in twilight so he lost about an hour of data.
HAT-P-55b is a gas giant exoplanet that orbits a G-type star. Its mass is 0.596 Jupiters, it takes 3.6 days to complete one orbit of its star, and is 0.04628 AU from its star. Its discovery was announced in 2015.
Next is the Exo-Planet transit of TrES-3b taken on the 15th May 2024 by Simon Dawes also for the ExoClock project.
Simon wrote ”The night wasn’t great, there was a light mist, 1/4 moon, and high cloud, I didn’t expect much given the conditions and the large change in altitude of the object, but I think it came out ok. The shape of the transit suggests it just grazes the limb of the host star (from our perspective).”
TrES-3b orbits the star GSC 03089-00929 in the constellation Hercules about 10 degrees west of the star called Vega. It is the third transiting planet found by the Trans-Atlantic Exoplanet Survey.
The planet TrES-3b is named Umbäässa. The name was selected in the NameExoWorlds campaign by Liechtenstein, during the 100th anniversary of the IAU. In the local dialect of southern Liechtenstein, Umbäässa is a small and barely visible ant. TrES-3b has an orbital period of just 31 hours and nearly twice the mass of Jupiter.
