Новости из категории: astronet

Detailed View of a Solar Eclipse Corona

Вс, Август 13, 2017 - 8:30

Only in the fleeting darkness of a total solar eclipse is the light of the solar corona easily visible. Normally overwhelmed by the bright solar disk, the expansive corona, the sun's outer atmosphere, is an alluring sight.

A Day in the Life of a Human Sundial

Сб, Август 12, 2017 - 8:30

Have you ever wanted to be a gnomon? Of course, a gnomon is the tall part of a sundial that casts a shadow. The gnomon's shadow moves as the Sun moves across the sky, indicating time by the shadow's position on the dial face.

Астрономическая неделя с 14 по 20 августа 2017 года

Пт, Август 11, 2017 - 13:38

На данной неделе 14 августа произойдет покрытие Луной (Ф= 0,62-) звезды кси2 Кита (4,3m) при видимости на Европейской части России, а 16 августа -..

A Total Solar Eclipse of Saros 145

Пт, Август 11, 2017 - 8:30

A darkened sky holds bright planet Venus, the New Moon in silhouette, and the shimmering corona of the Sun in this image of a total solar eclipse. A composite of simultaneous telephoto and wide angle frames it was taken in the path of..

Night of the Perseids

Чт, Август 10, 2017 - 8:30

This weekend, meteors will rain down near the peak of the annual Perseid Meteor Shower. Normally bright and colorful, the Perseid shower meteors are produced by dust swept up by planet Earth from the orbit of Comet Swift-Tuttle. They..

August Lunar Eclipse

Ср, Август 09, 2017 - 8:30

August's Full Moon is framed in this sharp, high dynamic range composition. Captured before sunrise on August 8 from Sydney, Australia, south is up and the Earth's dark, umbral shadow is at the left, near the maximum phase of a partial..

Density Waves in Saturns Rings from Cassini

Вт, Август 08, 2017 - 8:30

What causes the patterns in Saturn's rings? The Cassini spacecraft, soon ending its 13 years orbiting Saturn, has sent back another spectacular image of Saturn's immense ring system in unprecedented detail. The physical cause..

Spiral Galaxy NGC 1512: The Inner Ring

Пн, Август 07, 2017 - 8:30

Most galaxies don't have any rings -- why does this galaxy have two? To begin, the bright band near NGC 1512's center is a nuclear ring, a ring that surrounds the galaxy center and glows brightly with recently formed stars.

Milky Way and Exploding Meteor

Вс, Август 06, 2017 - 8:30

Next weekend the Perseid Meteor Shower reaches its maximum. Grains of icy rock will streak across the sky as they evaporate during entry into Earth's atmosphere. These grains were shed from Comet Swift-Tuttle.

Gravity s Grin

Сб, Август 05, 2017 - 8:30

Albert Einstein's general theory of relativity, published over 100 years ago, predicted the phenomenon of gravitational lensing. And that's what gives these distant galaxies such a whimsical appearance, seen through the looking glass of..