Новости из категории: astronet

Video of a Green Flash

Ср, Ноябрь 10, 2021 - 7:30

Many think it is just a myth. Others think it is true but its cause isn't known. Adventurers pride themselves on having seen it. It's a green flash from the Sun. The truth is the green flash does exist and its cause is well..

All of These Space Images are Fake Except One

Вт, Ноябрь 09, 2021 - 8:30

Why would you want to fake a universe? For one reason -- to better understand our real universe. Many astronomical projects seeking to learn properties of our universe now start with a robotic telescope taking sequential images of..

A Filament Leaps from the Sun

Пн, Ноябрь 08, 2021 - 7:30

Why, sometimes, does part of the Sun's atmosphere leap into space? The reason lies in changing magnetic fields that thread through the Sun's surface. Regions of strong surface magnetism, known as active regions, are usually marked by..

The Cats Eye Nebula in Optical and X-ray

Вс, Ноябрь 07, 2021 - 7:30

To some it looks like a cat's eye. To others, perhaps like a giant cosmic conch shell. It is actually one of brightest and most highly detailed planetary nebula known, composed of gas expelled in the brief yet glorious phase near the..

The Galaxy Between Two Friends

Сб, Ноябрь 06, 2021 - 6:30

On an August night two friends enjoyed this view after a day's hike on the Plateau d'Emparis in the French Alps. At 2400 meters altitude the sky was clear. Light from a setting moon illuminates the foreground captured in the simple..

Астрономическая неделя с 8 по 14 ноября 2021 года

Пт, Ноябрь 05, 2021 - 15:49

На данной неделе 8 ноября Луна (Ф= 0,16+) пройдет севернее Венеры (покрытие, видимое на Дальнем Востоке), а 11 ноября Луна (Ф= 0,52+) пройдет..

The Dark Seahorse in Cepheus

Пт, Ноябрь 05, 2021 - 7:30

Light-years across, this suggestive shape known as the Seahorse Nebula appears in silhouette against a rich, luminous background of stars. Seen toward the royal northern constellation of Cepheus, the dusty, obscuring clouds are part of a..

NGC 147 and NGC 185

Чт, Ноябрь 04, 2021 - 6:30

Dwarf galaxies NGC 147 (left) and NGC 185 stand side by side in this sharp telescopic portrait. The two are not-often-imaged satellites of M31, the great spiral Andromeda Galaxy, some 2.5 million light-years away.

The Horsehead and Flame Nebulas

Ср, Ноябрь 03, 2021 - 7:30

The Horsehead Nebula is one of the most famous nebulae on the sky. It is visible as the dark indentation to the orange emission nebula at the far right of the featured picture. The horse-head feature is dark because it is really an..

Календарь наблюдателя на январь 2022 года

Вт, Ноябрь 02, 2021 - 15:06

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

SN Requiem: A Supernova Seen Three Times So Far

Вт, Ноябрь 02, 2021 - 7:30

We've seen this same supernova three times -- when will we see it a fourth? When a distant star explodes in a supernova, we're lucky if we see it even once.

A Waterfall and the Milky Way

Пн, Ноябрь 01, 2021 - 6:30

The dream was to capture both the waterfall and the Milky Way together. Difficulties included finding a good camera location, artificially illuminating the waterfall and the surrounding valley effectively, capturing the entire scene with...