Новости из категории: astronet

Equinox in the Sky

Вт, Сентябрь 22, 2020 - 8:30

Does the Sun set in the same direction every day? No, the direction of sunset depends on the time of the year. Although the Sun always sets approximately toward the west, on an equinox like today the Sun sets directly toward the west.

Omega Sunrise

Пн, Сентябрь 21, 2020 - 8:30

Capturing this sunrise required both luck and timing. First and foremost, precise timing was needed to capture a sailboat crossing right in front of a rising Sun. Additionally, by a lucky coincidence, the background Sun itself..

Breaking Distant Light

Вс, Сентябрь 20, 2020 - 8:30

In the distant universe, time appears to run slowly. Since time-dilated light appears shifted toward the red end of the spectrum (redshifted), astronomers are able to use cosmological time-slowing to help measure vast distances in the..

Orion in Depth

Сб, Сентябрь 19, 2020 - 8:30

Orion is a familiar constellation. The apparent positions of its stars in two dimensions create a well-known pattern on the bowl of planet Earth's night sky. Orion may not look quite so familiar in this 3D view though.

Астрономическая неделя с 21 по 27 сентября 2020 года

Пт, Сентябрь 18, 2020 - 12:42

На данной неделе 22 сентября Луна (Ф= 0,33+) пройдет севернее Антареса и произойдет покрытие Луной в той же фазе звезды омега Змееносца (4,5m)..

Arp 78: Peculiar Galaxy in Aries

Пт, Сентябрь 18, 2020 - 8:30

(xxxedit and linkxxx) Peculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Aries, some 100 million light-years beyond the stars and nebulae of our Milky Way galaxy. Also...

Solar Cycle 25 Begins

Чт, Сентябрь 17, 2020 - 8:30

The general trend of monthly sunspot data now confirms that the minimum of the approximately 11 year cycle of solar activity occurred in December 2019, marking the start of Solar Cycle 25. That quiet Sun, at minimum activity, appears on the..

Gravel Ejected from Asteroid Bennu

Ср, Сентябрь 16, 2020 - 8:30

Why does asteroid Bennu eject gravel into space? No one is sure. The discovery, occurring during several episodes by NASA's visiting ORISIS-REx spacecraft, was unexpected. Leading ejection hypotheses include impacts by Sun-orbiting..

Gravel Ejected from Asteroid Bennu

Ср, Сентябрь 16, 2020 - 8:30

Photometric observations of the type IIn Supernova 2016ehw

Вт, Сентябрь 15, 2020 - 17:47

CCD BVRI and unfiltered photometry is presented for the type IIn Supernova 2016ehw. The object reached maximum with R(max)=15.4 mag and absolute magnitude $M_R=-18.1$~mag on JD~2457547. The brightness in the..

В атмосфере Венеры обнаружен биомаркер фосфин

Вт, Сентябрь 15, 2020 - 8:30

Может ли существовать жизнь в атмосфере Венеры? Хотя на поверхности планеты-соседки Земли условия считаются не подходящими для..

Biomarker Phosphine Discovered in the Atmosphere of Venus

Вт, Сентябрь 15, 2020 - 8:30

Could there be life floating in the atmosphere of Venus? Although Earth's planetary neighbor has a surface considered too extreme for any known lifeform, Venus' upper atmosphere may be sufficiently mild for tiny airborne microbes. This..