Новости из категории: astronet

183 Days in the Sun

Пт, Декабрь 22, 2023 - 8:30

A single 183 day exposure with a pinhole camera and photographic paper resulted in this long-duration solargraph. Recorded from solstice to solstice, June 21 to December 21, in 2022, it follows the Sun's daily arcing path through planet..

APOD: 2023 December 20 Б Ice Halos over Bavaria

Ср, Декабрь 20, 2023 - 8:30

What's causing those unusual sky arcs? Ice crystals. While crossing a field of fresh snow near Fцssen, Bavaria, Germany, earlier this month, the photographer noticed that he had entered an ice fog.

APOD: 2023 December 19 Б NGC 1499: The California Nebula

Вт, Декабрь 19, 2023 - 8:30

Could Queen Calafia's mythical island exist in space? Perhaps not, but by chance the outline of this molecular space cloud echoes the outline of the state of California, USA. Our Sun has its home within the Milky Way's Orion Arm, only..

APOD: 2023 December 18 Б The Same Color Illusion

Пн, Декабрь 18, 2023 - 16:30

Are squares A and B the same color? They are! To verify this, either run your cursor over the image or click here to see them connected. The featured illusion, an example...

Астрономическая неделя с 25 по 31 декабря 2023 года

Пн, Декабрь 18, 2023 - 11:22

На данной неделе 25 декабря Луна (Ф= 0,96+) пройдет севернее Альдебарана, а 26 декабря при фазе 0,99+ пройдет точку максимального склонения к..

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..