Big sunspot AR1429, which emerged over the weekend, is crackling with strong flares.
This morning the active region produced an X1-class eruption and a bright coronal mass ejection (CME). This is the strongest so far, occuring on March 5th at 0413 UT.
The CME appears set to deliver a glancing blow to Earth’s magnetic field in the days ahead, possibly … Read the rest of this article
AAVSO Alert Notice 452Dr. Hans Moritz Guenther, Harvard-Smithsonian Center for Astrophysics, has requested bracketing and simultaneous observations in support of XMM-Newton x-ray observations of the classical T Tauri star SU Aur and the close-by Herbig Ae star AB Aur scheduled for February 15 – 17, … Read the rest of this article
NASA’s Kepler Mission has released 43 days of science data on more than 156,000 stars. These stars are being monitored for subtle brightness changes as part of an ongoing search for Earth-like planets outside of our solar system.
Astronomers will use the new data to determine if orbiting planets are responsible for brightness variations in several hundred stars. These stars … Read the rest of this article
Astronomers using NASA’s Swift satellite and Fermi Gamma-ray Space Telescope are seeing frequent blasts from a stellar remnant 30,000 light-years away. The high-energy fireworks arise from a rare type of neutron star known as a soft-gamma-ray repeater. Such objects unpredictably send out a series of X-ray and gamma-ray flares.
“At times, this remarkable object has erupted with more than a … Read the rest of this article
The Sun Now (Visible light)
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The Sun Now (H-Alpha light)
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Aurora Oval
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Aurora Oval
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