Exo-Planets

Kepler-10b – The first unambiguous rocky exoplanet
Published 1/10/2011 in Franck Marchis Blog Author Franck Marchis
It is done. The Kepler team finally announced the discovery of its first terrestrial exoplanet. A referred journal, accepted in the Astrophysical journal (here) by Natalie Batalha and a large number of colleagues, describes this new member of the exoplanet family. This is the 519th known exoplanet based on the Extra-solar Planets Catalog, but definitely a special one. This... read more ❯

Discovery of 7 exoplanets around a Sun-like star
Published 8/24/2010 in Franck Marchis Blog Author Franck Marchis
Today, a team of astronomers from Europe led by group of the Observatoire de Geneve announced the discovery of SEVEN exoplanets around a southern hemisphere star called HD 10180.  Even if the name of the star is far from being memorable, our community will remember this major leap in the quest of exoplanets. What do we know about the host star? With a declination of -60 degrees (see Vizier), HD10180 is definitely visible in the southern hemisphere. The star is 127 light-years away in the southern constellation of Hydrus (the Male Water Snake)and has a visual magnitude of 7.3,  which makes it barely visible with... read more ❯

FIRST@LICK: Getting ready for the first night
Published 8/9/2010 in Franck Marchis Blog Author Franck Marchis
After a complicated mounting of the instrument on the telescope, we spent the entire first 2 days and a large part of the beginning of the night, reinstalling and realigning the FIRST instrument. JUly 23 and July 24 were  busy days with zillion of problems to solve. I am going to share you the "joy" of instrumentation in this post. This picture above summarizes in a few words our... read more ❯