Новости из категории: astronet

Unusual Short-period Cepheid with a Prominent Bump

Чт, Июнь 08, 2017 - 15:06

I report my discovery of a peculiar short-period Type II Cepheid in Centaurus. The new variable is pulsating with the period of 2.918 days, yet it is showing a distinctly double-peaked light curve with two nearly equal maxima. The "bumps"..

Firefall by Moonlight

Чт, Июнь 08, 2017 - 8:30

On certain dates in February, an elusive firefall can be spotted at sunset in Yosemite National Park, when the weather cooperates and the direction to the setting Sun is just right. Often photographed from...

Orbiting Jupiter

Ср, Июнь 07, 2017 - 8:30

What would it be like to orbit Jupiter? The dramatic featured video depicts just this and was made from images taken by NASA's Juno spacecraft currently orbiting the Jovian giant. Juno recently completed its sixth pass near Jupiter..

The Case of the Missing Star

Вт, Июнь 06, 2017 - 8:30

What's happened to giant star N6946-BH1? It was there just a few years ago -- Hubble imaged it. Now there's only a faint glow. What's curiouser, no bright supernova occurred -- although the star did brightened significantly for a..

Highlights of the Summer Sky

Пн, Июнь 05, 2017 - 8:30

What's up in the sky this summer? The featured graphic gives a few highlights for Earth's northern hemisphere. Viewed as a clock face centered at the bottom, early summer sky events fan out toward the left, while late summer events are..

Highlights of the Summer Sky

Пн, Июнь 05, 2017 - 8:30

What's up in the sky this summer? The featured graphic gives a few highlights for Earth's northern hemisphere. Viewed as a clock face centered at the bottom, early summer sky events fan out toward the left, while late summer events are..

Orion: Belt, Flame, and Horsehead

Вс, Июнь 04, 2017 - 8:30

What surrounds the famous belt stars of Orion? A deep exposure shows everything from dark nebula to star clusters, all embedded in an extended patch of gaseous wisps in the greater Orion Molecular Cloud Complex.

Orion: Belt, Flame, and Horsehead

Вс, Июнь 04, 2017 - 8:30

What surrounds the famous belt stars of Orion? A deep exposure shows everything from dark nebula to star clusters, all embedded in an extended patch of gaseous wisps in the greater Orion Molecular Cloud Complex.

Perijove Passage

Сб, Июнь 03, 2017 - 8:30

On May 19, the Juno spacecraft once again swung by Jupiter in its looping 53 day orbit around the Solar System's ruling gas gaint. Beginning at the top, this vertical 14 frame sequence of enhanced-color JunoCam images follows the..

Астрономическая неделя с 5 по 11 июня 2017 года

Пт, Июнь 02, 2017 - 21:17

На данной неделе Меркурий проходит в 5 градусах южнее Плеяд, а Церера вступит в соединение с Солнцем. 7 июня произойдет покрытие Луной Ф=..

Black Holes of Known Mass

Пт, Июнь 02, 2017 - 8:30

Add GW170104 to the chart of black holes with known mass. The extremely energetic merger of two smaller black holes corresponds to the Laser Interferometer Gravitational-wave Observatory's (LIGO) third detection of gravitational waves.

Shadowrise and Sunset

Чт, Июнь 01, 2017 - 8:30

The road tracking through this stunning 360 degree view crosses a remote mountain area of Jämtland, Sweden, planet Earth. A 3x8 mosaic of still images, the panorama was taken on May 3rd from a small drone 200 meters above the ground.