Новости из категории: astronet

A Study of Short-period Eclipsing Binaries

Пн, Февраль 13, 2023 - 14:51

I present a detection of 14 new eclipsing white-dwarf plus main-sequence binaries. The light curves in different photometric bands are characterized by different values of the amplitude of the eclipsing minimum, it is the largest in blue

APOD: 2023 February 13 Б Comet ZTF and Mars

Пн, Февраль 13, 2023 - 8:30

No, Comet ZTF is not going to hit Mars. Nicknamed the Green Comet for its bright green coma, C/2022 E3 (ZTF) did, however, pass almost in front of the much-more distant planet a few days ago, very near in time to when the featured..

APOD: 2023 February 12 Б Mammatus Clouds over Nebraska

Вс, Февраль 12, 2023 - 8:30

When do cloud bottoms appear like bubbles? Normally, cloud bottoms are flat. This is because moist warm air that rises and cools will condense into water droplets at a specific temperature, which usually corresponds to a very specific..

Magellanic Clouds over Chile

Сб, Февраль 11, 2023 - 7:30

The two prominent clouds in this Chilean Atacama Desert skyscape captured on January 21 actually lie beyond our Milky Way galaxy. Known as the Large and the Small Magellanic Clouds they are so named for the 16th century Portuguese..

Астрономическая неделя с 13 по 19 февраля 2023 года

Пт, Февраль 10, 2023 - 13:21

На данной неделе 14 февраля Луна (Ф= 0,38-) будет наблюдаться севернее Антареса, а 15 февраля Венера пройдет в 1 угловой минуте от Нептуна

ZTF meets ATLAS

Пт, Февраль 10, 2023 - 8:30

Fading as it races across planet Earth's northern skies comet C/2022 E3 (ZTF) shares this telescopic frame with comet C/2022 U2 (ATLAS). Captured on the night of February 6 from a garden observatory in Germany's Bavarian Forest, the..

Nacreous Clouds over Lapland

Чт, Февраль 09, 2023 - 8:30

Vivid and lustrous, wafting iridescent waves of color wash across this skyscape from Kilpisjцrvi, Finland. Known as nacreous clouds or mother-of-pearl clouds, they are rare. But their unforgettable appearance was captured looking south..

APOD: 2023 February 8 Б Stellar Wind Shaped Nebula RCW 58

Ср, Февраль 08, 2023 - 8:30

Imagine traveling to a star about 100 times as massive as our Sun, a million times more luminous, and with 30 times the surface temperature. Such stars exist, and some are known as Wolf Rayet (WR) stars, named after French astronomers

APOD: 2023 February 7 Б A Comet and Two Dippers

Вт, Февраль 07, 2023 - 8:30

Can you still see the comet? Yes. Even as C/2022 E3 (ZTF) fades, there is still time to see it if you know where and when to look. Geometrically, Comet ZTF has passed its closest to both the Sun and the Earth and is now headed back..

APOD: 2023 February 6 Б In the Heart of the Rosette Nebula

Пн, Февраль 06, 2023 - 8:30

In the heart of the Rosette Nebula lies a bright cluster of stars that lights up the nebula. The stars of NGC 2244 formed from the surrounding gas only a few million years ago.

APOD: 2023 February 5 Б Enceladus by Saturnshine

Вс, Февраль 05, 2023 - 8:30

This moon is shining by the light of its planet. Specifically, a large portion of Enceladus pictured here is illuminated primarily by sunlight first reflected from the planet Saturn. The result is that the normally snow-white moon..