Tag Archives: auroras

Astronomy News

Solar wind may spark auroras

Space Weather News for May 31, 2018
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SOLAR WIND ALERT: NOAA forecasters estimate a 60% chance of minor G1-class geomagnetic storms on June 1st, increasing to 65% on June 2nd, when a stream of high-speed solar wind is expected to reach Earth. The last time this gaseous stream lashed our planet’s magnetic field, almost a month ago, it sparked bright ribbons of purple light (a.k.a. “STEVE”) seen from multiple US states. Visit today’s edition of Spaceweather.com for more information.

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Above: The gaseous material en route to Earth is flowing from an equatorial hole in the sun’s atmosphere, shown here in a false-color UV image from NASA’s Solar Dynamics Observatory.

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Astronomy News, Awards

Northern Lights sighted as far south as the Dakotas in the USA

A minor G1-class geomagnetic storm is in progress on April 11th as Earth moves through a high speed stream of solar wind.

Space Weather News for April 11, 2018
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Above: First contact with the solar wind stream produced this outburst of auroras over Tromsö, Norway, photographed by Marcus Åhlund, a tour guide for Explore the Arctic.

 

Astronomy News

Possible Auroras this Thus and Fri

Space Weather News for August 30, 2017
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GEOMAGNETIC STORM IN THE OFFING: A canyon-shaped hole has opened in the sun’s atmosphere, and it is spewing a stream of high-speed solar wind toward Earth. NOAA forecasters say there is a 30% chance of polar geomagnetic storms (G1-class) when the gaseous material reaches our planet on August 31st. High-latitude sky watchers should be alert for auroras this Thursday and Friday. Visit Spaceweather.com for photos and updates.

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Above: This canyon-shaped “coronal hole” is a region in the sun’s atmosphere where the sun’s magnetic field has opened up, allowing solar wind to escape. Credit: NASA/SDO/Spaceweather.com

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Awards

CSFFA announces Aurora Winners

2016 Aurora awards winners

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The following is the complete list of winners:

  • Best English Novel: A Daughter of No Nation by A.M. Dellamonica, Tor Books
  • Best English YA Novel: An Inheritance of Ashes by Leah Bobet, Scholastic Canada/Clarion Books
  • Best English Short Fiction: “Waters of Versailles” by Kelly Robson, Tor.com
  • Best English Poem/Song: “Origami Crane / Light Defying Spaceship” by Naru Dames Sundar, Liminality, Issue 5 Autumn
  • Best English Graphic Novel: The Lady ParaNorma by Vincent Marcone, ChiZine Publications
  • Best English Related Work: Second Contacts edited by Michael Rimar & Hayden Trenholm, Bundoran Press
  • Best Visual Presentation: Orphan Black, Season 3, John Fawcett and Graeme Manson, Temple Street Productions
  • Best Artist: Erik Mohr, covers for ChiZine Publications
  • Best Fan Publication: Speculating Canada edited by Derek Newman-Stille
  • Best Fan Organizational: Randy McCharles, Chair, When Words Collide, Calgary
  • Best Fan Related Work: Derek Newman-Stille, Speculating, Canada on Trent Radio 92.7 FM

Astronomy News

Auroras, Taurids, Space Debris

Robot looks upFire in the sky!

From http://spaceweather.com
GEOMAGNETIC STORM WARNING: A high-speed stream of solar wind is about to hit Earth’s magnetic field, prompting NOAA forecasters to estimate an 85% to 90% chance of geomagnetic storms on Nov. 2-3. This is the same 800 km/s stream that lashed Earth’s magnetic field in early October, sparking strong geomagnetic storms and bright auroras over northern-tier US states. Visit http://spaceweather.com for more information and updates.

TAURID FIREBALLS: The annual Taurid meteor shower is underway and it is lighting up the midnight sky with bright fireballs. Taurid meteoroids are gravelly pieces of debris from Comet Encke that strike our planet’s atmosphere at 70,000 mph. They pose no danger to people on the ground as they disintegrate entirely high above Earth’s surface every few hours. If forecasters are correct, the display could continue until Nov. 10th. Tune into Space Weather Radio for live radar echoes.

From http://astronomy.com/  ASY_SpaceDebrisMILLIONS OF BITS OF SPACE JUNK — leftover fragments from spacecraft and related debris — orbit Earth, and the majority of these will eventually fall into Earth’s atmosphere and incinerate. Astronomers believe they have recently observed one of these pieces and, for the first time, they can predict when and where it will enter the atmosphere. Such forecasts could allow scientists the opportunity to observe these events to better understand what happens when space debris — manmade or natural — comes in contact with the atmosphere and determine which objects might be hazardous to humans.

“Artificial objects can have a coat of paint on their surfaces, and oftentimes that paint has titanium oxide in it. This does not occur naturally, so if the object’s spectrum indicates the presence of titanium oxide, we can know it’s definitively artificial.”

The Catalina Sky Survey (CSS), a project based near Tucson that searches the sky for comets and asteroids, particularly those that could potentially impact Earth, detected the object on October 3. Soon after this discovery, astronomers realized that the CSS had also imaged the object in 2013. Comparing the two observations allowed the scientists to determine its orbit, which looked much more like that of typical space junk than a natural body. They also concluded that it would enter Earth’s atmosphere on November 13 over the Indian Ocean, in the vicinity of Sri Lanka.

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