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astronomie LA ROMIEU
Huguette Lacoste Francis, Présidente
Lens mappingAll-sky cameras use lenses with a very wide field of view, usually fisheye lenses, which have a marked distortion of the image.While not strictly necessary to use an all-sky camera it's good to know the mapping of the pixels in the image to locations in the sky. This is essential if you...
New all-sky camera: Starting the designThe first step in designing this all-sky camera system is to decide on the combination of camera and lens.CameraMy key requirements for the camera were:· A colour camera: because my last experience of a bright aurora here caught it only in black-and -whit...
For many years we have had a Starlight Xpress Oculus all-sky camera at the observatory – using it for everything from checking the cloud conditions to looking for aurora and meteors. We also used it to make time-lapse movies of the movement of the sky. Its lens has a 180° field of view, so enough to...
Temporary closure due to an electronic problem on the main telescope used for visits. We are waiting for parts to repair it.
We have discovered an extremely useful on-line resource which gives a good estimate of the darkness which can be expected on any night of the year, based on sunset, sunrise and twilight, as well as the Moon phase and when it rises and sets. More information is given in the ""Help and Details"" secti...
This year, 2024, we have seen the aurora borealis (or "northern lights") at Le Bourdieu a couple of times. This is pretty unusual. They are caused when energetic particles and plasma, known as a coronal mass ejection, are launched from the Sun by a violent event called a flare, and intercept the Ear...
For several years, Richard has been taking photographs of nebulae, galaxies, stars, deep space objects a few hundred light years away with his state-of-the-art telescopes and cameras.Finally, he gave in to the request of friends; the summer exhibition of some of his astro-photographs was inaugurated...
