Astronomy Picture of the Day

Astronomy Picture Of the Day (APOD)

183 дня под Солнцем 183 Days in the Sun

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 Earth's skies from Mertola, Portugal.

Ледяные гало над Баварией APOD: 2023 December 20 Б Ice Halos over Bavaria

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.

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

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 about 1,000 light-years from the California Nebula.

Иллюзия одинаковых цветов APOD: 2023 December 18 Б The Same Color Illusion

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...

Геминиды над китайским озером Нианху APOD: 2023 December 17 Б Geminids over Chinas Nianhu Lake

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 appear to come from a radiant toward Gemini.

Полумесяц Энцелада Crescent Enceladus

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 sunward direction about 130,000 kilometers from the moon's bright crescent.

Затмение Бетельгейзе Betelgeuse Eclipsed

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...

Остаток сверхновой Кассиопея А Supernova Remnant Cassiopeia A

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 enriched material is blasted back into interstellar space where star formation can begin anew.

Глубокое поле: туманность Сердце APOD: 2023 December 13 Б Deep Field: The Heart Nebula

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 long-exposure image was also blended with light emitted by silicon (yellow) and oxygen (blue).

Северное сияние и Млечный Путь над Норвегией APOD: 2023 December 12 Б Aurora and Milky Way over Norway

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.

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