Sébastien Comerón

Astronomy Research Unit

University of Oulu

About me


I am an extragalactic astronomer working at the Oulu University in Finland. At a latitude of 65o3'35'' the Astronomy Research Unit at the Oulu University is the northernmost department of astronomy in the world at a mere degree and a half south of the Polar Circle.


My main scientific interest is the study of nearby galaxies to try to figure out what their evolution has been (the so-called galactic archæology). I have worked in rings of star formation and also in the thick discs of edge-on galaxies.

About the header Image


An NGC 522 image made with data from the Spitzer Survey of Stellar Structure in Galaxies (S4G). The image was produced by adding the 3.6 μm and 4.5 μm bands of the survey. This almost perfectly edge-on galaxy shows a boxy-shaped bulge and a warp. The small influence of dust in the mid-infrared and the great depth of the image allows us to easily study the thick and thin disc components of NGC 522.