Новости из категории: astronet

NGC 6744 Close Up

Чт, Май 31, 2018 - 7:30

Beautiful spiral galaxy NGC 6744 is nearly 175,000 light-years across, larger than our own Milky Way. It lies some 30 million light-years distant in the southern constellation Pavo, its galactic disk tilted towards our line of sight.

The Case of the Backwards Orbiting Asteroid

Ср, Май 30, 2018 - 8:30

Why does asteroid 2015 BZ509 orbit the Sun the backwards? As shown in the featured animation, Jupiter's trojan asteroids orbit the Sun in two major groups -- one just ahead of Jupiter, and one just behind -- but all orbit the Sun in the..

Aurora and Manicouagan Crater from the Space Station

Вт, Май 29, 2018 - 8:30

How many of these can you find in today's featured photograph: an aurora, airglow, one of the oldest impact craters on the Earth, snow and ice, stars, city lights, and part of the International Space Station? Most of these can be identified by..

Seven Dusty Sisters

Пн, Май 28, 2018 - 8:30

Is this really the famous Pleaides star cluster? Known for its iconic blue stars, the Pleaides is shown here in infrared light where the surrounding dust outshines the stars. Here three infrared colors have been mapped into visual..

Coronal Rain on the Sun

Вс, Май 27, 2018 - 8:30

Does it rain on the Sun? Yes, although what falls is not water but extremely hot plasma. An example occurred in mid-July 2012 after an eruption on the Sun that produced both a Coronal Mass Ejection and a moderate solar flare.

Titan: Moon over Saturn

Сб, Май 26, 2018 - 8:30

Like Earth's moon, Saturn's largest moon Titan is locked in synchronous rotation. This mosiac of images recorded by the Cassini spacecraft in May of 2012 show's its anti-Saturn side, the side always facing away from the ringed gas giant.

Астрономическая неделя с 28 мая по 3 июня 2018 года

Пт, Май 25, 2018 - 12:11

На данной неделе долгопериодические переменные звезды RT Лебедя (6m) и R Змееносца (6,5m) достигают максимума блеска, 1 июня Луна (Ф= 0,95-)..

Galaxies Away

Пт, Май 25, 2018 - 8:30

This stunning group of galaxies is far, far away, about 450 million light-years from planet Earth and cataloged as galaxy cluster Abell S0740. Dominated by the cluster's large central elliptical galaxy (ESO 325-G004)...

The Gum Nebula Expanse

Чт, Май 24, 2018 - 7:30

Named for a cosmic cloud hunter, Australian astronomer Colin Stanley Gum (1924-1960), The Gum Nebula is so large and close it is actually hard to see. In fact, we are only about 450 light-years from the front edge and 1,500 light-years..

GSC 02693-00926 and USNO-B1.0 1587-0201409, Two New Doubly Eclipsing Systems

Ср, Май 23, 2018 - 17:14

I present my detection of two new doubly eclipsing systems, GSC 02693-00926 and USNO-B1.0 1587-0201409 (types EA+EB and EB+ELL). I analyzed all observations available for these stars in the NSVS and ASAS-SN online public archives..

Spiral Galaxy NGC 4038 in Collision

Ср, Май 23, 2018 - 8:30

This galaxy is having a bad millennium. In fact, the past 100 million years haven't been so good, and probably the next billion or so will be quite tumultuous. Visible toward the lower...

Craters and Shadows at the Lunar Terminator

Вт, Май 22, 2018 - 7:30

Why does the right part of this image of the Moon stand out? Shadows. The terminator line -- the line between light and dark -- occurs in the featured image so that just over half the Moon's face is illuminated by sunlight.