Новости из категории: astronet

APOD: 2023 October 25 Б Gone in 60 Seconds: A Green Flash Sunset

Ср, Октябрь 25, 2023 - 8:30

In 60 seconds, this setting Sun will turn green. Actually, the top of the Sun already appears not only green, but wavey -- along with all of its edges. The Sun itself is unchanged -- both effects are caused by looking along hot and..

APOD: 2023 October 24 Б Arp 87: Merging Galaxies from Hubble

Вт, Октябрь 24, 2023 - 8:30

This dance is to the death. As these two large galaxies duel, a cosmic bridge of stars, gas, and dust currently stretches over 75,000 light-years and joins them. The bridge itself is strong evidence that these two immense star systems..

APOD: 2023 October 23 Б Moon Io from Spacecraft Juno

Пн, Октябрь 23, 2023 - 7:30

There goes another one! Volcanoes on Jupiter's moon Io keep erupting. To investigate, NASA's robotic Juno spacecraft has begun a series of visits to this very strange moon. Io is about...

APOD: 2023 October 22 Б Ghost Aurora over Canada

Вс, Октябрь 22, 2023 - 7:30

What does this aurora look like to you? While braving the cold to watch the skies above northern Canada early one morning in 2013, a most unusual aurora appeared. The aurora definitely appeared to be shaped like something, but what?

Quarter Moons

Сб, Октябрь 21, 2023 - 8:30

Half way between New Moon and Full Moon is the Moon's first quarter phase. That's a quarter of the way around its moonthly orbit. At the first quarter phase, half the Moon's visible side is illuminated by sunlight.

Catalog of Multi-Mode Radially Pulsating Variables: I

Пт, Октябрь 20, 2023 - 13:31

I present a catalog of newly detected Multi-Mode Radially Pulsating (MMRP) variable stars that pulsate in the fundamental, first, second, or third-overtone modes. This catalog includes 50 double- and multi-mode stars. Among..

Galaxies and a Comet

Пт, Октябрь 20, 2023 - 8:30

Galaxies abound in this sharp telescopic image recorded on October 12 in dark skies over June Lake, California. The celestial scene spans nearly 2 degrees within the boundaries of the well-trained northern constellation Canes Venatici.

A Sunrise at Sunset Point

Чт, Октябрь 19, 2023 - 7:30

This timelapse series captured on October 14 is set against the sunrise view from Sunset Point, Bryce Canyon, planet Earth. Of course on that date the New Moon caught up with the Sun in the canyon's morning skies.

APOD: 2023 October 18 Б Dust and the Western Veil Nebula

Ср, Октябрь 18, 2023 - 8:30

It's so big it is easy to miss. The entire Veil Nebula spans six times the diameter of the full moon, but is so dim you need binoculars to see it. The nebula was created about 15,000 years ago when a star in the constellation of..

APOD: 2023 October 17 Б PDS 70: Disk, Planets, and Moons

Вт, Октябрь 17, 2023 - 8:30

It's not the big ring that's attracting the most attention. Although the big planet-forming ring 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,..

Астрономическая неделя с 23 по 29 октября 2023 года

Пн, Октябрь 16, 2023 - 13:03

На данной неделе 28 октября Луна (Ф= 0,99+) окажется в восходящем узле своей орбиты, а также произойдет частное лунное затмение при..

APOD: 2023 October 16 Б Eclipse Rings

Пн, Октябрь 16, 2023 - 7:30

She knew everything but the question. She was well aware that there would be a complete annular eclipse of the Sun visible from their driving destination: Lake Abert in Oregon. She knew that the next ring-of-fire eclipse would..