Who are we ?

🇫🇷  Traduire en français

Maurice and Yoann Audejean, father and son, are amateur astronomers based in Chinon, France. They operate a Newtonian telescope with a 400 mm diameter and a focal length of 1800 mm.

Maurice has been practicing astronomy since the 1960s, and passed down his solid experience to his son Yoann during the 1990s. Since 2024, they have been pursuing their passion together, regularly participating in solar observations using the CLIMSO coronagraphs at the Pic du Midi de Bigorre observatory.

To learn more about their background, visit the Brief History page. 

Above: the 400‑mm Newtonian telescope, f = 1800 mm, housed in a roll‑off shelter (see the construction page).

Their areas of interest: 

• Astronomical imaging, for the simple pleasure of capturing photographs of celestial objects.

• Imaging for photometric and astrometric studies.

Some of their results are displayed on this website, in the  Image Gallery.

Other instruments are used depending on their objectives, including:

• 70/700 refractor.

• Smart-telescop Seestar S50.

• Smart-telescop Seestar S30.

The choice of image acquisition devices also depends on their goals, including:

• Cooled OGMA Camera, AP26CC.

• ZWO ASI 676 MC Planetary Camera.

• Smart-telescop Seestar S50.

• Smart-telescop Seestar S30.

• Canon EOS 600D DSLR paired with a Sigma 70–300mm DG telephoto lens.

Below, left: the ZWO Seestar S50; right: the camera and the focuser at the T400 focus.