Новости из категории: astronet

Announcing Comet Catalina

Вт, Август 18, 2015 - 8:30

Will Comet Catalina become visible to the unaided eye? Given the unpredictability of comets, no one can say for sure, but it seems like a good bet. The comet was discovered in 2013 by observations of the Catalina Sky Survey.

Andromeda Rising over the Alps

Пн, Август 17, 2015 - 8:30

Have you ever seen the Andromeda galaxy? Although M31 appears as a faint and fuzzy blob to the unaided eye, the light you see will be over two million years old, making it likely the oldest light you ever will see directly.

M1: The Crab Nebula from Hubble

Вс, Август 16, 2015 - 7:30

This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in mysterious filaments. The filaments are not only tremendously complex, but appear to have less mass than expelled in the original..

Календарь наблюдателя на сентябрь 2015 года

Сб, Август 15, 2015 - 12:08

Очередной выпуск ежемесячника Календарь наблюдателя расскажет об основных явлениях..

Perihelion Approaches

Сб, Август 15, 2015 - 7:30

This dramatic outburst from the nucleus of Comet 67P/Churyumov-Gerasimenko occured on August 12, just hours before perihelion, its closest approach to the Sun. Completing an orbit of the Sun once every 6.45 years, perihelion distance for..

Астрономическая неделя с 17 по 23 августа 2015 года

Пт, Август 14, 2015 - 18:00

На данной неделе метеорный поток каппа-Цигниды достигает максимума действия (зенитное часовое число - ZHR - 3), а Марс проходит по..

Comet Dust over Enchanted Rock

Пт, Август 14, 2015 - 8:30

Dusty debris from periodic Comet Swift-Tuttle was swept up by planet Earth this week. Vaporized by their passage through the dense atmosphere at 59 kilometers per second, the tiny grains produced a stream of Perseid meteors. A bright,..

Moonless Meteors and the Milky Way

Чт, Август 13, 2015 - 7:30

Have you watched the Perseid meteor shower? Though the annual shower's predicted peak was last night, meteor activity should continue tonight (August 13/14), best enjoyed by just looking up in clear, dark skies after midnight. Of course,

Milky Way and Exploding Meteor

Ср, Август 12, 2015 - 7:30

Tonight 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.

A Blue Moon Halo over Antarctica

Вт, Август 11, 2015 - 8:30

Have you ever seen a halo around the Moon? Such 22 degree rings around the Moon -- caused by ice crystals falling in the Earth's atmosphere -- are somewhat rare. OK, but have you ever seen a blue moon?

A Sagittarius Triplet

Пн, Август 10, 2015 - 8:30

These three bright nebulae are often featured in telescopic tours of the constellation Sagittarius and the crowded starfields of the central Milky Way. In fact, 18th century cosmic tourist Charles Messier cataloged two of them; M8, the..

HCG 87: A Small Group of Galaxies

Вс, Август 09, 2015 - 7:30

Sometimes galaxies form groups. For example, our own Milky Way Galaxy is part of the Local Group of Galaxies. Small, compact groups, like Hickson Compact Group 87 (HCG 87) shown above, are interesting partly because they slowly..