Stars

Blue oval star gives the kick-off for the night

The second brightest star in the sky turns so fast that it has distorted itself. His bright blue light can already be seen at sunset, so go outside quickly when darkness falls.

Watch the Wega star at sunset.

© SHUTTERSTOCK

The star Wega, the second brightest of the northern starry sky, is also the fourth brightest of all stars. Wega has a bluish glow because the star is about 9300 ° C hot. For comparison: the sun is hot at 5500 ° C.

Wega is one of the first stars to appear in the sky in the evening. His powerful light can be seen with the naked eye even before the sun sets behind the horizon.

Together with the stars Deneb and Altair, Wega forms the so-called Summer Triangle. The three stars are all among the brightest in the sky in the summer.

That's how you do that

  • In the first half of May you can see Wega around 25 degrees above the northeastern horizon, around sunset. During the night he travels east and climbs the sky.

  • Wega shines so bright that you can even see it in places with lots of artificial light. The Melkweg even bleaches a little.

  • Use a wide-angle lens for photos. Take the image vertically so that you take the foreground with you. With a tripod and self-timer you prevent your photos from being moved. Choose approximately 30 seconds of shutter speed.

© JESPER GRØNNE, HVAD I HIMLEN.DK

Did you know?

At its equator, Wega rotates at almost 1 million km / h - more than 600 times as fast as the earth.

Because of that speed, the star has become oval, and if it would only turn 10 percent faster, it would collapse and go in all directions

Video: Love and Happiness: An Obama Celebration (February 2020).

Popular Posts

Category Stars, Next Article

What makes animals' eyes shine in the dark?
Animals

What makes animals' eyes shine in the dark?

That the eyes of cats and other animals glow in the dark is due to a layer in their eye, the tapetum lucidum. This layer is behind the light-sensitive retina and reflects the light that passes through it. The light-sensitive cells in the eye can use the light again. The reflection increases the light sensitivity of the eyes considerably (with cats by around 50 percent) and is therefore especially useful for nocturnal animals.
Read More
Why do dogs wag?
Animals

Why do dogs wag?

A dog's tail has two main functions. The first is balance: it helps the dog to stay in balance while running and jumping. For example, if the animal suddenly wants to change direction, it uses its tail as a kind of counterweight to turn its abdomen. The second function is communication.
Read More
Ingenious techniques give animals extra speed
Animals

Ingenious techniques give animals extra speed

The long legs of frogs work as a slingshot Frogs are among the best jumpers in the entire animal kingdom. Some species can jump up to 20 times their own height. Because of their long legs, they can deposit longer, giving them more jumping power. Before they jump, frogs put on their leg muscles, tightening the tendons in the ankles like a catapult.
Read More
Dangerous metamorphoses
Animals

Dangerous metamorphoses

### Ant is ticking time bomb Ants live in the rain forests of Southeast Asia who sacrifice themselves to kill their opponents. One of them has the appropriate name South Asian puff ant (Colobopsis explodens). When other insects try to invade the colony, this ant inflates itself.
Read More