Новости из категории: astronet

APOD: 2025 January 20 Б Comet ATLAS Rounds the Sun

Пн, Январь 20, 2025 - 8:30

Why does Comet ATLAS have such colorful tails? Last week Comet C/2024 G3 (ATLAS) passed its closest to the Sun -- well inside the orbit of Mercury -- and brightened dramatically. Unfortunately, the comet was then so angularly near..

APOD: 2025 January 19 Б Titan Touchdown: Huygens Descent Movie

Вс, Январь 19, 2025 - 8:30

What would it look like to land on Saturn's moon Titan? The European Space Agency's Huygens probe set down on the Solar System's cloudiest moon in 2005, and a time-lapse video of its descent images was created.

Full Moon, Full Mars

Сб, Январь 18, 2025 - 8:30

On January 13 a Full Moon and a Full Mars were close, both bright and opposite the Sun in planet Earth's sky. In fact Mars was occulted, passing behind the Moon, when viewed from some locations in North America and northwest Africa.

Systematic Difference between Eclipsing Binary Stars in Star Clusters and in Galactic Field Revealed

Пт, Январь 17, 2025 - 10:31

The recent Gaia DR3 all-sky list of candidates for eclipsing binaries including 2,184,477 sources, and the list of probable members of galactic clusters by Hunt and Reffert (2024), are used to identify eclipsing binary stars -- members..

Supernova Remnant Cassiopeia A

Пт, Январь 17, 2025 - 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

M83: The Southern Pinwheel

Чт, Январь 16, 2025 - 18:30

Beautiful and bright spiral galaxy M83 lies a some twelve million light-years away, near the southeastern tip of the very long constellation Hydra. Prominent spiral arms traced by dark dust lanes and blue star clusters lend this galaxy its..

M83: The Southern Pinwheel

Чт, Январь 16, 2025 - 18:30

APOD: 2025 January 15 Б Wolf Moon Engulfs Mars

Чт, Январь 16, 2025 - 18:30

Does the Moon ever engulf Mars? Yes, but only in the sense that it moves in front, which happens on rare occasions. This happened just yesterday, though, as seen from some locations in North America and western Africa.

APOD: 2025 January 14 Б North Star: Polaris and Surrounding Dust

Вт, Январь 14, 2025 - 8:30

Why is Polaris called the North Star? First, Polaris is the nearest bright star toward the north spin axis of the Earth. Therefore, as the Earth turns, stars appear to revolve around Polaris, but Polaris itself always stays in the..

APOD: 2025 January 13 Б Comet ATLAS Before Sunrise

Пн, Январь 13, 2025 - 7:30

Comet ATLAS is really bright now, but also really close to the Sun. Outside the glow of the Sun, Comet C/2024 G3 (ATLAS) would be one of the more remarkable comet sights of recent years, reflecting about as much sunlight to Earth as Comet..