http://spaceweather.com/ - 01/28/15 19:39:54 - 12/01/04 00:53:58
361.4 0.1 Updated: Today at 0328 UT Updated: Today at: 2359 UT
Sunspot number: 1402 6.0 0.7 north Updated: Today at 0329 UT
Thursday, Jan. 29, 2015
On January 29, 2015 there were
2015 BD511 Jan 30 4.5 LD 17 m
406.2 Updated: Today at 2328 UT M1 2137 UT Jan28 Updated: Today at: 2300 UT7.1 2.2 Updated: Today at 2329 UT Updated at: 01-28-2015 21:55:03Updated at: 2015 Jan 28 2200 UTC Updated at: 2015 Jan 28 2200 UTC
25 % 35 % 05 %
25 % 55 %
MUD ROCKET LAUNCH: NASA's SMAP satellite, designed to measure moisture in the soils of Earth, will blast off from California's Vandenberg AFB on Thursday morning, Jan. 29th. The three-minute launch window begins at 6:20 am PST. Observers from coastal Los Angeles to the Bay Area may be able to see exhaust from the Delta II rocket criss-crossing the dawn sky in the minutes after launch. Observers closer to Vandenberg could see the rocket itself. Californians, set your alarm for dawn.
ASTEROID FLYBY: On Monday, Jan. 26th, mountain-sized asteroid 2004 BL86 flew past Earth--and it was not alone. NASA radar images revealed, to the surprise of astronomers, that the space rock has its own moon. A must-see video from JPL shows the asteroid and its satellite. Another must-see movie was recorded by amateur astronomer Nick James. Click to watch the asteroid streak over his backyard in of Chelmsford, UK:
"This asteroid was moving at around 2.5 arcmin/min last night," says James. In other words, about 18,000 mph. The streaking space rock was invisible to the naked eye, but sunlight reflected from its rocky surface made it an easy target for small telescopes. More backyard photos may be found here
At a distance of 745,000 miles, or 3.1 times the distance from Earth to the Moon, Monday's flyby was the closest approach the asteroid will make to Earth for at least the next two centuries. It is also the closest a known asteroid this size will come to Earth until asteroid 1999 AN10 flies past our planet in 2027.
485.2 2.8 Updated: Today at 1840 UT 1254 UT Jan27 Updated: Today at: 1800 UT3 9.0 2.8 Updated: Today at 1746 UT
Scientists working with NASA's 70-meter Deep Space Network antenna at Goldstone, California, have released the first radar images of asteroid 2004 BL86, which flew past Earth on Jan. 26th. The mountain-sized space has its own small moon: Must-see video
SOMETHING FLARE-Y THIS WAY COMES: Solar activity is low, but this could change with the arrival of an active sunspot currently located just behind the sun's eastern limb. Note the circled "hot spot" in this extreme ultraviolet image from NASA's Solar Dynamics Observatory:
Plumes of hot plasma trapped in the sunspot's magnetic canopy, false-colored pink in the image above, herald the arrival of the underlying sunspot. It should emerge into view in a day or so.
Meanwhile, several sunspots on the Earthside of the sun are growing and beginning to crackle with flares. Of particular interest are AR2268 and AR2271, which have increasingly unstable 'beta-gamma' magnetic fields. NOAA forecasters estimate a 30% chance of M-flares in the next 24 hours. Solar flare alerts:text, voice