Новости из категории: astronet

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,..

Астрономическая неделя с 30 декабря 2013 года по 5 января 2014 года

Пт, Декабрь 27, 2013 - 17:30

На данной неделе наступит максимум действия метеорного потока Квадрантиды, Земля пройдет перигелий своей орбиты (видимый диаметр..

19 Stars from NSV Catatlog: Eclipsing, Pulsating and Cataclysmic Variables

Пт, Декабрь 27, 2013 - 12:51

Melotte 15 in the Heart

Пт, Декабрь 27, 2013 - 8:30

Cosmic clouds seem to form fantastic shapes in the central regions of emission nebula IC 1805. Of course, the clouds are sculpted by stellar winds and radiation from massive hot stars in the nebula's newborn star cluster, Melotte 15.

The Hydrogen Clouds of M33

Чт, Декабрь 26, 2013 - 8:30

Gorgeous spiral galaxy M33 seems to have more than its fair share of glowing hydrogen gas. A prominent member of the local group of galaxies, M33 is also known as the Triangulum Galaxy and lies about 3 million light-years distant.

Phobos 360

Ср, Декабрь 25, 2013 - 7:30

What does the Martian moon Phobos look like? To better visualize this unusual object, images from ESA's Mars Express orbiter have been combined into a virtual rotation movie. The rotation is actually a digital illusion --

Sharpless 308: Star Bubble

Вт, Декабрь 24, 2013 - 8:30

Blown by fast winds from a hot, massive star, this cosmic bubble is huge. Cataloged as Sharpless 2-308 it lies some 5,200 light-years away toward the constellation of the Big Dog (Canis Major) and covers slightly more of the sky than a Full..