Новости из категории: astronet

Stars, Dust, Pillars, and Jets in the Pelican Nebula

Вт, Октябрь 11, 2022 - 8:30

What dark structures arise within the Pelican Nebula? On the whole, the nebula appears like a bird (a pelican) and is seen toward the constellation of a different bird: Cygnus, a Swan. But inside, the Pelican Nebula is a place lit up by..

A Double Lunar Analemma over Turkey

Пн, Октябрь 10, 2022 - 8:30

An analemma is that figure-8 curve you get when you mark the position of the Sun at the same time each day for one year. But the trick to imaging an analemma of the Moon is to wait bit longer.

Auroras over Northern Canada

Вс, Октябрь 09, 2022 - 7:30

Gusting solar winds and blasts of charged particles from the Sun resulted in several rewarding nights of auroras back in 2014 December, near the peak of the last 11-year solar cycle. The featured image captured dramatic auroras..

Two Comets in Southern Skies

Сб, Октябрь 08, 2022 - 8:30

Heading for its closest approach to the Sun or perihelion on December 20, comet C/2017 K2 (PanSTARRS) remains a sight for telescopic observers as it sweeps through planet Earth's southern hemisphere skies. First...

Астрономическая неделя с 10 по 16 октября 2022 года

Пт, Октябрь 07, 2022 - 15:49

На данной неделе 11 октября Луна (Ф= 0,95-) достигнет восходящего узла своей орбиты, а 12 октября при фазе 0,94- покроет Уран при видимости на..

In Ganymede s Shadow

Пт, Октябрь 07, 2022 - 8:30

At opposition, opposite the Sun in Earth's sky, late last month Jupiter is also approaching perihelion, the closest point to the Sun in its elliptical orbit, early next year. That makes Jupiter exceptionally close to our fair planet,

NGC 4631: The Whale Galaxy

Чт, Октябрь 06, 2022 - 8:30

NGC 4631 is a big beautiful spiral galaxy. Seen edge-on, it lies only 25 million light-years away in the well-trained northern constellation Canes Venatici. The galaxy's slightly distorted wedge shape suggests to some a cosmic herring..

Expanding Plume from DARTs Impact

Ср, Октябрь 05, 2022 - 8:30

What happens if you crash a spaceship into an asteroid? In the case of NASA's DART spaceship and the small asteroid Dimorphos, as happened last week, you get quite a plume. The goal...

Star Forming Eagle Nebula without Stars

Вт, Октябрь 04, 2022 - 7:30

The whole thing looks like an eagle. A closer look at the Eagle Nebula's center, however, shows the bright region is actually a window into the center of a larger dark shell of dust. Through this window, a brightly-lit workshop..

Jupiters Europa from Spacecraft Juno

Пн, Октябрь 03, 2022 - 8:30

What mysteries might be solved by peering into this crystal ball? In this case, the ball is actually a moon of Jupiter, the crystals are ice, and the moon is not only dirty but cracked beyond repair. Nevertheless, speculation is..

Supernova Cannon Expels Pulsar J0002

Вс, Октябрь 02, 2022 - 8:30

What could shoot out a neutron star like a cannon ball? A supernova. About 10,000 years ago, the supernova that created the nebular remnant CTB 1 not only destroyed a massive star but blasted its newly formed neutron star core -- a

Lunation Matrix

Сб, Октябрь 01, 2022 - 8:30

Observe the Moon every night and you'll see its visible sunlit portion gradually change. In phases progressing from New Moon to Full Moon to New Moon again, a lunar cycle or lunation is completed in about 29.5 days.