Aus Zeitmangel heute nur ein interessantes Update direkt von www.spaceweather.com
BIG BRIGHT OBJECT NEAR THE SUN: Don't panic, it's just Venus. The brilliant evil twin of Earth is passing between our planet and the sun this week, making a bright UFO-like light in SOHO coronagraph images:
The bright rays and luminous bloom centered on the planet are digital artifacts. Venus is so bright, it saturates SOHO's CCD detectors, causing electrons to "bleed" across pixel boundaries. The same thing happens to a lesser degree with Mercury, which is bisected by a horizontal bar--another artifact. Note how the star Spica, dimmer than the planets, appears as a normal pinprick. It does not saturate the CCD.
Venus will continue its flamboyant passage for the next few days. Join SOHO for a ringside seat.
BIG SUNSPOT: Sunspot group 1117 continues to grow, more than doubling in area during the past 48 hours: movie. Each of the primary dark cores in this Oct. 26th snapshot from the Solar Dynamics Observatory is fully as wide as Earth:
The sunspot's magnetic field is crackling with B- and C-class solar flares: 36-hour movie. So far, these impulsive eruptions have not hurled any substantial clouds toward Earth. A big flare would be geoeffective, however, because the sunspot is almost-squarely facing Earth. Stay tuned!
more images: from Monty Leventhal OAM of Sydney, Australia.
QUELLE:www.spaceweather.com
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