Soleil / Sun
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En se basant sur des données recueillies par l’ESO (European Southern Observatory), les scientifiques ont réussi à donner une idée (et même une image) de ce à quoi ressemble une belle matinée ensoleillée sur Pluton.
A quoi ressemble le Soleil vu depuis Pluton
The Sun as Art traveling exhibit (here presented as a slide show) presents a new way of looking at the Sun as seen from space, based on images captured by NASA’s premier solar mission, SDO (the Solar Dynamics Observatory). Most images were taken in extreme ultraviolet wavelength of light.
SDO Art - Solar Dynamics Observatory |
STEREO
The sun sent out two different kinds of solar activity on November 3, 2011 in different directions: an X.19 solar flare and a particularly bright CME.actu solaire - live
eruptionCME / tempêtes solaires
Solar flares are giant explosions on the sun that send energy, light and high speed particles into space. These flares are often associated with solar magnetic storms known as coronal mass ejections (CMEs). The number of solar flares increases approximately every 11 years, and the sun is currently moving towards another solar maximum, likely in 2013.
Solar Flares: What Does It Take to Be X-Class?
An x-class flare began at 3:48 AM EDT on August 9, 2011 and peaked at 4:05 AM.
Sun Unleashes X6.9 Class Flare
Solar Stormwatch
Share your discoveries on the forum and Flickr, check out the space weather forecast on Twitter, and read our blog for all the latest news and challenges. Solar Stormwatch blog Thanks to everyone who helped track the most recent bunch of solar storms.
Le Soleil - SpaceWeather live
Real-time plots auroral activity Here you'll find plots of the solar wind speed/density and the Interplanetary magnetic field (IMF) of the last two hours, these are the first parameters in the predicition of auroral activity.
Solar activity remains very low with only B-Class X-Ray activity detected mostly around Sunspot 1450 and region 1451.
SOLARCYCLE 24.com / SolarHam.com / Solar Cycle 24 / Spaceweather / Amateur Radio VHF Aurora Website
Aurores boréales
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Explanation: It was visible around the world.
Astronomy Picture of the Day
Aujourd’hui le soleil s’est arrêté. C’est, littéralement, la définition du solstice . À 6h30 précises en effet, heure de Paris (5h30 T.U.), le Soleil s’est arrêté de marcher vers le sud, et se lèvera à présent chaque jour un peu plus au nord de la position qu’il occupait la veille.
Au travers d’un tunnel du Soleil - L'image d'astronomie du jour - APOD
Différentes façons de voir le soleil | La boite verte
Le Solar Dynamics Observatory (SDO) est un satellite d’observatoire solaire de la NASA, dont le lancement a eu lieu le 11 février 2010. Il étudie avec précision l’atmosphère solaire dans un grand nombre de longueurs d’ondes pour voir comment les changements d’activité de la surface du soleil peut influer sur la Terre.SunCalc - sun position, sunlight phases, sunrise, sunset, dusk and dawn times calculator
SunCalc is a little app that shows sun movement and sunlight phases during the given day at the given location.3D Sun for your iPhone and iPod Touch
Before long, your phone chirps in your pocket to let you know! Pulling out your phone, you see a 3D view of the sun a digital reconstruction of images freshly downloaded from NASA's "STEREO" satellites, orbiting millions of miles away. You rotate the sun with your finger to view it from any angle.eclipses