Hi,
Last year during the “Name an ExoWorld” International Campaign the International Astronomical Union accepted the names “Moldoveanu” and “Negoiu” for the star XO-1 and its exoplanet XO-1b in the Northern Crown constellation. These two names represent the names of highest peaks (2500 m) here in Romania.
http://www.nameexoworlds.iau.org/romania
On July 4, 2020, I observed the transit of the XO-1b exoplanet. This extrasolar planet is 536 light-years away and is a Hot Jupiter type that revolves around the host star in just 3.9 days at a distance of about 7 million kilometers. I observed the host star for almost 3 hours and I measured the duration of the transit at 165 minutes, the observational report being sent to the Exoplanet Transit Database.
http://var2.astro.cz/tresca/transit-detail.php?id=1595180005&lang=en
Details about the host star and exoplanet can be found at this link:
http://exoplanet.eu/catalog/xo-1_b/
A simulation of this system can be seen here (click and drag on image):
https://exoplanets.nasa.gov/exoplanet-catalog/5164/xo-1-b/
Clear sky!
