What exactly is Aurora Borealis?
Sommario
- What exactly is Aurora Borealis?
- Where can I see the aurora borealis?
- Why is aurora borealis so special?
- What happens if you touch the aurora borealis?
- How often do auroras happen?
- What causes Southernlights?
- What time is best to see Northern Lights?
- What is the best time to see the aurora borealis tonight?
- Why you should not whistle at the Northern Lights?
- Can planes fly through the aurora borealis?
What exactly is Aurora Borealis?
The northern lights, one of several astronomical phenomena called polar lights (aurora polaris), are shafts or curtains of colored light visible on occasion in the night sky. Aurora borealis – the Northern Lights. ... The origin of the aurora begins on the surface of the sun when solar activity ejects a cloud of gas.
Where can I see the aurora borealis?
The best places in the world are usually closer to the Arctic Circle, including Alaska, Canada, Iceland, Greenland, Norway, Sweden and Finland. But don't limit yourself: You can also spot the southern lights in the southern hemisphere. Still, the northern lights are the star of the show.
Why is aurora borealis so special?
The aurora borealis – otherwise known as the northern lights – is a vivid demonstration of the Earth's magnetic field interacting with charged particles from the sun. It's also beautiful, and worth braving a cold night out when visiting the high northern (or southern) latitudes.
What happens if you touch the aurora borealis?
The aurora is emitted between km in altitude (i.e. mostly above the 'official' boundary of space, 100 km), so ungloving your hand inside an aurora would likely be fatal (unless a fellow astronaut immediately reattaches your glove and repressurizes your suit).
How often do auroras happen?
"Active periods are typically about 30 minutes long and occur every two hours, if the activity is high. The aurora is a sporadic phenomenon, occurring randomly for short periods or perhaps not at all."
What causes Southernlights?
The famous Northern and Southern Lights -- Aurora Borealis and Aurora Australis for those Latin lovers among us -- are caused by high-energy particles from the Sun cascading down on Earth. As they near our planet, they interact with Earth's magnetic field, which channels them toward the north and south magnetic poles.
What time is best to see Northern Lights?
The Northern Lights can show at any time of the day as long as there are darkness, clear skies, and solar activity, as we mentioned before. Statistically, midnight and the hours around midnight from 10:00 to 2:00 are the best time of day to see the Northern Lights and when most Aurora sightings concentrate.
What is the best time to see the aurora borealis tonight?
"Dress warmly, plan to watch the sky between 10 p.m. and 2 a.m. local time, although an active period can occur anytime during the dark hours," Deehr wrote in the guide.
Why you should not whistle at the Northern Lights?
Thought to be the souls of the dead, the Sámi believed you shouldn't talk about the Northern Lights. It was also dangerous to tease them by waving, whistling or singing under them, as this would alert the lights to your presence. If you caught their attention, the lights could reach down and carry you up into the sky.
Can planes fly through the aurora borealis?
“We can actually fly into the auroras,” says eye-witness Don Pettit, a Flight Engineer for ISS Expedition 30. ... Lately, the International Space Station has been flying through geomagnetic storms, giving astronauts an close-up view of the aurora borealis just outside their windows: video.