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Related to auroral: auroral oval
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Synonyms for auroral

characteristic of the dawn


References in periodicals archive ?
Sometimes we receive an extra-large flare that causes the auroral oval to expand and reach out further south.
Auroral displays appear in many colours although pale green and pink are the most common, as seen here.
You need clear, dark skies and to travel to a spot under the auroral oval such as Northern Sweden.
NASA hopes the mission will illuminate mysteries such as the origin of auroral curls, which look like cream swirling in a cup of coffee.
University of Houston, Houston, Texas Auroral ionosphere and stratosphere study using smartphone technology
The team's findings provide a "smoking gun" for the theory that Saturn's auroral displays are often caused by the dramatic collapse of its "magnetic tail.
And as 2014 is a peak year in auroral activity, the lights will glow brighter than they have in the past ten years.
Scientists have discovered that auroral activity peaks about every 11 years, and yes, this is a peak year
Time sampling of Europa's auroral emissions measured by Hubble's imaging spectrograph enabled the researchers to distinguish between features created by charged particles from Jupiter's magnetic bubble and plumes from Europa's surface, and also to rule out more exotic explanations such as serendipitously observing a rare meteorite impact.
Aurora observers tend to look forward to the equinoxes as the frequency of auroral displays usually increases around these times.
A previous government experiment, the High Frequency Active Auroral Research Program, HAARP, has been a central part of any conspiracy discussing government-controlled weather.
In indigenous circumpolar communities auroral manifestations were associated with traditional beliefs, many of them supernatural in content: their luminosity could be interpreted as the torches of spirits of the recently deceased, their motions as spirits (or children who died still-born) playing football, and their sounds as voices coming from the otherworld.
There is a phenomenon called the auroral oval, which is essentially a halo that goes around the globe at a latitude north of the Arctic Circle--that is where the auroral activity is concentrated.
Naval Research Laboratory research physicists and engineers from the Plasma Physics Division, working at the High-frequency Active Auroral Research Program (HAARP) transmitter facility, Gakona, Alaska, successfully produced a sustained high density plasma cloud in Earth's upper atmosphere.
In the centre of the image, Orion the hunter is just visible through the bright auroral display.