http://spaceweather.com/ - 11/24/15 21:10:29 - 12/01/04 00:53:58
343.5 0.8 Updated: Today at 1628 UT Updated: Today at: 1600 UT3.7 0.6 Updated: Today at 1628 UT
CHANCE OF MINOR STORMS:
JAPANESE ROCKET SURPRISES SKY WATCHERS: Unbeknownst to most people in North America this morning, Japan launched an H-2A rocket carrying the Telstar 12 Vantage communications satellite. The resulting display surprised sky watchers in at least half a dozen states. "I was observing Comet Catalina before sunrise, when I noticed this thing halfway up towards Venus," reports Glen Wurden of Los Alamos, New Mexico:
"It lasted for at least a half an hour after 5:40 AM," he adds. "It was huge, easily naked eye, and kind of scary!"
Discovered in 2013 by the Catalina Sky Survey, Comet Catalina (C/2013 US10) is making a one-time trip through the inner solar system. It swung around the sun on Nov. 15th and is now emerging in the dawn skies of the northern hemisphere. Peter Rosén photographed the comet over Stockholm, Sweden, on
295.3 2.3 Updated: Today at 1216 UT 1002 UT Nov24 Updated: Today at: 1200 UT Daily Sun: 24 Nov 15 Sunspot AR2457 has developed a 'beta-gamma' magnetic field that harbors energy for M-class solar flares. Credit: SDO/HMI
Updated 24 Nov 2015 Updated 24 Nov 2015120 Updated 24 Nov 2015
CHANCE OF STORMS: NOAA forecasters estimate a 40% chance of minor geomagnetic storms on Nov. 25th when a solar wind stream is expected to hiy Earth's magnetic field. High-latitude sky watchers could see auroras through the glare of the waxing full Moon. Aurora alerts
324.0 1.9 Updated: Today at 0338 UT 1820 UT Nov23 Updated: Today at: 2359 UT
Sunspot number: 770 3.4 0.1 south Updated: Today at 0338 UT
Tuesday, Nov. 24, 2015
On November 24, 2015 there were
2015 WP2 0.6 LD 5 m Nov 20 40 m 63 m 5 m
330.4 2.3 Updated: Today at 1918 UT B8 1721 UT Nov23 Updated: Today at: 1900 UT0 3.5 : 0.7 Updated: Today at 1917 UT
TRANSCONTINENTAL SPACE WEATHER BALLOON UPDATE: The payloads of two space weather balloons launched on Nov. 21st from California and New Hampshire have been recovered--one from a desert wash in Death Valley National Park, the other from the top of an oak tree in Maine. Now the data analysis begins. Updates may be found on the Facebook page of .
SUNRISE COMET CATALINA: Discovered in 2013 by the Catalina Sky Survey, Comet Catalina (C/2013 US10) is making a one-time trip through the inner solar system. It swung around the sun on Nov. 15th and is now emerging in the dawn skies of the northern hemisphere. Peter Rosén photographed the comet in the morning sky of Stockholm, Sweden, on Nov. 23rd
"I woke up very early this morning to catch a first glimpse of comet Catalina," says Rosén. "While I waited for the comet to appear in the sunrise twilight, I spent my time observing Venus and Jupiter. As so often happens in Stockholm, the clouds rolled in and started covering the sky. I thought about giving up, but I noticed that there was still a strip of clear sky at the eastern horizon. Patience payed off and Comet Catalina even showed a thin tail at less than 3° above the horizon."
Technically, Comet Catalina is a 6th magnitude object visible to the unaided eye. In practice, morning twilight overwhelms the comet's faint glow. You need a telescope to see it. "The inset is shot with a Canon Eos5D through my WilliamOptics FLT-110 at prime focus," says Rosén. Sky maps and observing tips are available from Sky & Telescope.
This is Comet Catalina's first visit to the inner solar system--and its last. The comet's close encounter with the sun in mid-November has placed it on a slingshot trajectory toward interstellar space. It will become easier to see in the weeks ahead as it recedes from the sun, possibly brightening to 5th magnitude in December. A date of special interest is Dec. 7th when the comet pairs up with the planet Venus and the waning crescent Moon in the early morning sky. Catalina will be about 4o degrees away from the Venus-Moon combo. Stay tuned for more information about that, and meanwhile browse the realtime comet gallery for more sightings.