Daily Suspicious0bserver's Weather Post:
October 10, 2014
What's in the sky tonight?
October 10, 2014
-NOAA forecasters have raised the odds of an M-class solar flare today to 40%. The likely source is sunspot AR2182, which has tripled in size since yesterday. Because the sunspot is near the sun's western limb, however, its flares may not be geoeffective.
-At this time of year, only a few weeks after the equinox, Northern Lights are almost always visible somewhere around the Arctic Circle. "Last night I was flying to Europe from Calgary and I strategically selected the window seat hoping for a show," reports traveler Christy Turner. This is what she saw.
"Boy did I luck out!" she says. Indeed she did. During her flight, the interplanetary magnetic field (IMF) around Earth tipped south. South-pointing IMFs pry open a crack in Earth's magnetosphere, allowing solar wind to pour through and ignite auroras.
Astro Picture of the Day:
October 10, 2014
Source:
From the early hours of October 8, over the Santa Cruz Mountains near Los Gatos, California, the totally eclipsed Moon shows a range of color across this well-exposed telescopic view of the lunar eclipse. Of course, a lunar eclipse can only occur when the Moon is opposite the Sun in Earth's sky and gliding through the planet's shadow. But also near opposition during this eclipse, and remarkably only half a degree or so from the lunar limb, distant Uranus is faint but easy to spot at the lower right. Fainter still are the ice giant's moons. While even the darkened surface of our eclipsed Moon will be strongly overexposed, Uranus moons Titania, Oberon, and Umbriel can just be distinguished as faint pinpricks of light.