Новости из категории: astronet

An Unusual Hole in Mars

Пн, Июнь 12, 2017 - 7:30

What created this unusual hole in Mars? Actually, there are numerous holes pictured in this Swiss cheese-like landscape, with all-but-one of them showing a dusty, dark, Martian terrain beneath evaporating, light, carbon-dioxide ice.

IC 418: The Spirograph Nebula

Вс, Июнь 11, 2017 - 8:30

What is creating the strange texture of IC 418? Dubbed the Spirograph Nebula for its resemblance to drawings from a cyclical drawing tool, planetary nebula IC 418 shows patterns that are not well understood. Perhaps they are related to..

Saturn in the Milky Way

Сб, Июнь 10, 2017 - 8:30

Saturn is near opposition in planet Earth's sky. Rising at sunset and shining brightly throughout the night, it also lies near a line-of-sight to crowded starfields, nebulae, and obscuring dust clouds along the Milky Way.

Астрономическая неделя с 12 по 18 июня 2017 года

Пт, Июнь 09, 2017 - 23:33

На данной неделе 12 июня комета C/2015 V2 проходит перигелий орбиты (1,637 а.е.), а Меркурий - в 5 гр. к северу от Альдебарана. 13 июня Венера..

M27 Not a Comet

Пт, Июнь 09, 2017 - 8:30

While hunting for comets in the skies above 18th century France, astronomer Charles Messier diligently kept a list of the things he encountered that were definitely not comets. This is number 27 on his now famous not-a-comet list.

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.