Новости из категории: astronet

New Variable Stars in Lacerta: Area of 2°.3×2°.3, Center α=22h50m δ=54°00′ (2000.0). Part II

Вт, Август 31, 2021 - 16:29

Photometric Study of Classical Nova V1674 Her

Вт, Август 31, 2021 - 14:13

An analysis of the new UBVR_cI_c observations of V1674 Her obtained by the authors shows that the star is a very fast Nova, with parameters T_2 = 1.1d, T_3 = 2.2d. The orbital period at the brightness decline, 39 - 56 days after the..

A Blue Moon in Exaggerated Colors

Вт, Август 31, 2021 - 8:30

The Moon is normally seen in subtle shades of grey or gold. But small, measurable color differences have been greatly exaggerated to make this telescopic, multicolored, moonscape captured during the Moon's full phase. The different..

A Fire Rainbow over West Virginia

Пн, Август 30, 2021 - 8:30

What's happening to this cloud? Ice crystals in a distant cirrus cloud are acting like little floating prisms. Known informally as a fire rainbow for its flame-like appearance, a circumhorizon arc appears parallel to the horizon.

A Fire Rainbow over West Virginia

Пн, Август 30, 2021 - 8:30

Orbits of Potentially Hazardous Asteroids

Вс, Август 29, 2021 - 8:30

Are asteroids dangerous? Some are, but the likelihood of a dangerous asteroid striking the Earth during any given year is low. Because some past mass extinction events have been linked to asteroid impacts, however, humanity has made it a..

Mars Rock Rochette

Сб, Август 28, 2021 - 8:30

Taken on mission sol 180 (August 22) this sharp image from a Hazard Camera on the Perseverance rover looks out across a rock strewn floor of Jezero crater on Mars. At 52.5 centimeters (21 inches) in diameter, one of the rover's steerable..

Астрономическая неделя с 30 августа по 5 сентября 2021 года

Пт, Август 27, 2021 - 11:26

На данной неделе 30 августа Луна (Ф= 0,52-) достигнет апогея своей орбиты на расстоянии 404100 км от центра Земли близ восходящего узла своей..

Elephant s Trunk and Caravan

Пт, Август 27, 2021 - 8:30

Like an illustration in a galactic Just So Story, the Elephant's Trunk Nebula winds through the emission nebula and young star cluster complex IC 1396, in the high and far off constellation of Cepheus. Also known as vdB 142, seen on the..

A Blue Hour Full Moon

Чт, Август 26, 2021 - 7:30

Nature photographers and other fans of planet Earth always look forward to the blue hour. That's the transition in twilight, just before sunrise or after sunset, when the Sun is below the horizon but land and sky are still suffused with a..

Solar System Ball Drop

Ср, Август 25, 2021 - 8:30

Does a ball drop faster on Earth, Jupiter, or Uranus? The featured animation shows a ball dropping from one kilometer high toward the surfaces of famous solar system bodies, assuming no air resistance. The force of gravity depends on..

PDS 70: Disk, Planets, and Moons

Вт, Август 24, 2021 - 8:30

It's not the big disk that's attracting the most attention. Although the big planet-forming disk around the star PDS 70 is clearly imaged and itself quite interesting. It's also not the planet on the right, just inside the big disk,..