Новости из категории: astronet

Unexplored Eclipsing Stars with Elliptical Orbits

Ср, Июнь 19, 2024 - 21:20

This study presents parameters of several poorly studied eclipsing variable stars with elliptical orbits. The data were obtained from solution of our own long-term photometric observations.

Search for Evolutionary Period Changes in the Double-mode Cepheid V367 Sct

Ср, Июнь 19, 2024 - 16:18

For both periods of the bimodal Cepheid V367 Sct, O - C diagrams spanning a 113-year time interval are constructed. The O - C diagrams have the form of parabolas, allowing quadratic ephemerides and evolutionary period change rates to be..

APOD: 2024 June 19 Б NGC 6188: Dragons of Ara

Ср, Июнь 19, 2024 - 8:30

Do dragons fight on the altar of the sky? Although it might appear that way, these dragons are illusions made of thin gas and dust. The emission nebula NGC 6188, home to the glowing...

APOD: 2024 June 18 Б Gigantic Jets over Himalayan Mountains

Вт, Июнь 18, 2024 - 8:30

Yes, but can your thunderstorm do this? Pictured here are gigantic jets shooting up from a thunderstorm last week toward the Himalayan Mountains in China and Bhutan. The composite image captured four long jets that occurred only..

APOD: 2024 June 17 Б Ou4: The Giant Squid Nebula

Пн, Июнь 17, 2024 - 8:30

Squids on Earth aren't this big. This mysterious squid-like cosmic cloud spans nearly three full moons on planet Earth's sky. Discovered in 2011 by French astro-imager Nicolas Outters, the Squid Nebula's bipolar shape is distinguished

APOD: 2024 June 16 Б Animation: Black Hole Destroys Star

Вс, Июнь 16, 2024 - 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..

APOD: 2024 June 16 Б Animation: Black Hole Destroys Star

Вс, Июнь 16, 2024 - 8:30

Prominences and Filaments on the Active Sun

Сб, Июнь 15, 2024 - 7:30

This colorized and sharpened image of the Sun is composed of frames recording emission from hydrogen atoms in the solar chromosphere on May 15. Approaching the maximum of solar cycle 25, a multitude of active regions and twisting,..

Астрономическая неделя с 17 по 23 июня 2024 года

Пт, Июнь 14, 2024 - 10:04

На данной неделе 20 июня Луна (Ф= 0,97+) пройдет близ Антареса (покрытие при видимости в акватории Тихого океана), будет иметь место..

Астрономическая неделя с 17 по 23 июня 2024 года

Пт, Июнь 14, 2024 - 10:04

RCW 85

Пт, Июнь 14, 2024 - 8:30

From the 1960 astronomical catalog of Rodgers, Campbell and Whiteoak, emission region RCW 85 shines in southern night skies between bright stars Alpha and Beta Centauri. About 5,000 light years distant, the hazy interstellar cloud of glowing..

Messier 66 Close Up

Чт, Июнь 13, 2024 - 8:30

Big, beautiful spiral galaxy Messier 66 lies a mere 35 million light-years away. The gorgeous island universe is about 100 thousand light-years across, similar in size to the Milky Way. This Hubble Space Telescope close-up view spans a..