Новости из категории: astronet

APOD: 2023 December 17 Б Geminids over Chinas Nianhu Lake

Вс, Декабрь 17, 2023 - 13:30

Where are all of these meteors coming from? In terms of direction on the sky, the pointed answer is the constellation of Gemini. That is why the major meteor shower in December is known as the Geminids -- because shower meteors all..

Crescent Enceladus

Сб, Декабрь 16, 2023 - 8:30

Peering from the shadows, the Saturn-facing hemisphere of tantalizing inner moon Enceladus poses in this Cassini spacecraft image. North is up in the dramatic scene captured during November 2016 as Cassini's camera was pointed in a nearly..

Betelgeuse Eclipsed

Пт, Декабрь 15, 2023 - 8:30

Asteroid 319 Leona cast a shadow across planet Earth on December 12, as it passed in front of bright star Betelgeuse. But to see everyone's favorite red giant star fade this time...

Updated Elements of Variable Stars in Sagittarius

Чт, Декабрь 14, 2023 - 13:29

Supernova Remnant Cassiopeia A

Чт, Декабрь 14, 2023 - 8:30

Massive stars in our Milky Way Galaxy live spectacular lives. Collapsing from vast cosmic clouds, their nuclear furnaces ignite and create heavy elements in their cores. After only a few million years for the most massive stars, the

APOD: 2023 December 13 Б Deep Field: The Heart Nebula

Ср, Декабрь 13, 2023 - 8:30

What excites the Heart Nebula? First, the large emission nebula on the left, catalogued as IC 1805, looks somewhat like a human heart. The nebula glows brightly in red light emitted by its most prominent element, hydrogen, but this..

Two New delta Scuti Stars in Hercules

Ср, Декабрь 13, 2023 - 2:46

I present my discovery and CCD observations of two new small-amplitude delta Scuti (DSCTC) stars demonstrating multiperiodic pulsations. The paper contains detected frequencies, light curves, finding charts, and other relevant..

APOD: 2023 December 12 Б Aurora and Milky Way over Norway

Вт, Декабрь 12, 2023 - 8:30

What are these two giant arches across the sky? Perhaps the more familiar one, on the left, is the central band of our Milky Way Galaxy. This grand disk of stars and nebulas here appears to encircle much of the southern sky.

Астрономическая неделя с 18 по 24 декабря 2023 года

Пн, Декабрь 11, 2023 - 9:31

На данной неделе 18 декабря астероид Fides (37) вступит в противостояние с Солнцем, а 22 декабря наступит зимнее солнцестояние

APOD: 2023 December 11 Б Solar Minimum versus Solar Maximum

Пн, Декабрь 11, 2023 - 8:30

The surface of our Sun is constantly changing. Some years it is quiet, showing relatively few sunspots and active regions. Other years it is churning, showing many sunspots and throwing frequent Coronal Mass Ejections (CMEs) and flares.

APOD: 2023 December 10 Б Big Dipper over Pyramid Mountain

Вс, Декабрь 10, 2023 - 12:30

When did you first learn to identify this group of stars? Although they are familiar to many people around the world, different cultures have associated this asterism with different icons and folklore. Known...