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Solar Activity Update & Hot Headlines for December 9, 2015

Wednesday, December 9, 2015 20:54
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Via Space Watch

CHANCE OF STORMS: NOAA forecasters estimate a 40% chance of geomagnetic storms on Dec. 9th, increasing to 55% on Dec. 10th in response to an incoming solar wind stream. High-latitude sky watchers should remain alert for colorful auroras after nightfall.

THE GEMINID METEOR SHOWER IS UNDERWAY: Canada’s Meteor Orbit Radar (CMOR) is picking up echoes from the constellation Gemini. It’s a sign that the annual Geminid meteor shower is underway. The bright pink “hot spot” in this CMOR sky map shows where Geminid meteoroids are hitting the atmosphere:

NOAA forecaster estimate a 40% chance of geomagnetic storms on December 9th, increasing to 55% on December 10th.

Geminid meteoroids are gravelly debris from “rock comet” 3200 Phaethon. They hit Earth’s atmosphere traveling ~35 km/s (78,000 mph) and typically disintegrate about 80 km (50 miles) above Earth’s surface. While many Geminids are faint, bright fireballs are not unusual. Indeed, NASA’s all-sky network of meteor cameras recorded 10 Geminid fireballs over the USA just last night.

Hakan Bayindir captured this Geminid over Uludag, Bursa, Turkey, on Dec. 8th:
“This is a 15 second exposure I made using my Canon EOS 600D digital camera set at ISO 1600.”

Photographers should take note of those settings because many more Geminids are in the offing. Meteor sightings will increase in the nights ahead as Earth plunges deeper into the debris zone of 3200 Phaethon. Forecasters expect peak rates to occur on Dec. 13-14, when dark-sky observers in both hemispheres could see as many as 120 meteors per hour during the hours after local midnight. Observing conditions will be nearly ideal because the shower peaks just a few days after the New Moon.

Hot Headlines for December 9, 2015



Source: http://www.apparentlyapparel.com/news/solar-activity-update-hot-headlines-for-december-9-2015

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