Новости из категории: astronet

Galaxy NGC 474: Shells and Star Streams

Вс, Январь 05, 2014 - 7:30

What's happening to galaxy NGC 474? The multiple layers of emission appear strangely complex and unexpected given the relatively featureless appearance of the elliptical galaxy in less deep images. The cause...

Clouds and Crescents

Сб, Январь 04, 2014 - 8:30

A crescent Venus shines along the western horizon at dusk in this clearing sky. The Earth's sister planet is smiling between the low clouds near the bottom of the frame during its January 2nd conjunction with the slender, young crescent..

Астрономическая неделя c 6 по 12 января 2014 года

Пт, Январь 03, 2014 - 16:22

На данной неделе произойдет покрытие звезды TYC 1324-02789-1 (7,7m) астероидом (2988) Korhonen, Меркурий сблизится с Венерой, которая затем достигнет..

Lovejoy in the New Year

Пт, Январь 03, 2014 - 7:30

A rival to vanquished Comet ISON in 2013, Comet Lovejoy (C/2013 R1) still sweeps through early morning skies, captured in this starry scene on New Year's day. The frame stretches some 3.5 degrees across a background of faint stars in the..

Reflections on Planet Earth

Чт, Январь 02, 2014 - 8:30

Catching sight of your reflection in a store window or shiny hubcap can be entertaining and occasionally even inspire a thoughtful moment. So consider this reflective view from 300 kilometers above planet Earth.

A New Year s Crescent

Ср, Январь 01, 2014 - 8:30

That's not the young crescent Moon poised above the western horizon at sunset. Instead it's Venus in a crescent phase, captured with a long telephoto lens from Quebec City, Canada, planet Earth on a chilly December 30th evening. The very..

A New Year s Crescent

Ср, Январь 01, 2014 - 7:30

The Horsehead Nebula

Вт, Декабрь 31, 2013 - 8:30

The Horsehead Nebula is one of the most famous nebulae on the sky. It is visible as the dark indentation to the red emission nebula in the center of the above photograph. The horse-head feature is dark because it is really an..

WBVR Standards in the Northern Sky. Analysis of Variability Using MZ Technique

Пн, Декабрь 30, 2013 - 11:10

From our comparison of magnitudes of bright stars in the Hipparcos catalogue and in the Tien-Shan catalogue of WBVR magnitudes, we compiled a list of stars that could be candidate photometric standards in the northern sky. The..

Quantum Steampunk Fantasy Fractal Landscape

Пн, Декабрь 30, 2013 - 7:30

What strange world is this? Pictured above is no real place but rather a purely mathematical visualization of a generalization of a fractal into three dimensions. Classical fractal diagrams are typically confined to the two dimensions..

Time Lapse Auroras Over Norway

Вс, Декабрь 29, 2013 - 8:30

Sometimes, after your eyes adapt to the dark, a spectacular sky appears. Such was the case in 2011 March when one of the largest auroral displays in recent years appeared over northern locations like the border between Norway and Russia.

Alaska Aurora Sequence

Сб, Декабрь 28, 2013 - 8:30

A remarkably intense auroral band flooded the northern night with shimmering colors on December 7. The stunning sequence captured here was made with a camera fixed to a tripod under cold, clear skies near Ester, just outside of Fairbanks,..