Новости из категории: astronet

North Star: Polaris and Surrounding Dust

Ср, Апрель 28, 2021 - 8:30

Why is Polaris called the North Star? First, Polaris is the nearest bright star toward the north spin axis of the Earth. Therefore, as the Earth turns, stars appear to revolve around Polaris, but Polaris itself always stays in the..

Animation: Black Hole Star Shredder

Вт, Апрель 27, 2021 - 8:30

What happens if a star gets too close to a black hole? The black hole can rip it apart -- but how? It's not the high gravitational attraction itself that's the problem -- it's the difference in gravitational pull across the star that creates..

Animation: Black Hole Star Shredder

Вт, Апрель 27, 2021 - 7:30

A Sagittarius Triplet

Пн, Апрель 26, 2021 - 7:30

These three bright nebulae are often featured on telescopic tours of the constellation Sagittarius and the crowded starfields of the central Milky Way. In fact, 18th century cosmic tourist Charles Messier cataloged two of them; M8, the..

Планетарная туманность Mz3: туманность Муравей

Вс, Апрель 25, 2021 - 8:30

Почему этот "муравей" так не похож на шар? Ведь планетарная туманность Mz3 – это оболочка, сбрасываемая звездой, похожей..

Planetary Nebula Mz3: The Ant Nebula

Вс, Апрель 25, 2021 - 8:30

Why isn't this ant a big sphere? Planetary nebula Mz3 is being cast off by a star similar to our Sun that is, surely, round. Why then would the gas that is streaming away create an ant-shaped nebula that is distinctly not round?

Streak and Plume from SpaceX Crew2 Launch

Сб, Апрель 24, 2021 - 8:30

What's happening in the sky? The pre-dawn sky first seemed relatively serene yesterday morning over Indian Harbor Beach in Florida, USA. But then it lit up with a rocket launch. Just to the north, NASA's SpaceX Crew-2 Mission..

Flying Over the Earth at Night II

Пт, Апрель 23, 2021 - 7:30

Recorded during 2017, timelapse sequences from the International Space Station are compiled in this serene video of planet Earth at Night. Fans of low Earth orbit can start by enjoying the view as green and red aurora borealis slather up the..

Календарь наблюдателя на май 2021 года

Пт, Апрель 23, 2021 - 7:27

Очередной выпуск ежемесячника, освещающего астрономические явления и небесные тела, доступные для наблюдений..

Астрономическая неделя с 26 апреля по 2 мая 2021 года

Пт, Апрель 23, 2021 - 7:21

На данной неделе 26 апреля Луна (Ф= 0,98+) пройдет севернее Спики. 27 апреля Луна (Ф= 1,0) будет находиться в перигее своей орбиты на расстоянии..

Planet Earth at Twilight

Чт, Апрель 22, 2021 - 8:30

No sudden, sharp boundary marks the passage of day into night in this gorgeous view of ocean and clouds over our fair planet Earth. Instead, the shadow line or terminator is diffuse and shows the gradual transition to darkness we experience..

Centaurus As Warped Magnetic Fields

Ср, Апрель 21, 2021 - 8:30

When galaxies collide -- what happens to their magnetic fields? To help find out, NASA pointed SOFIA, its flying 747, at galactic neighbor Centaurus A to observe the emission of polarized dust -- which traces magnetic fields.