Новости из категории: astronet

The Further Tail of Comet Leonard

Чт, Декабрь 30, 2021 - 8:30

Comet Leonard, brightest comet of 2021, is at the lower left of these two panels captured on December 29 in dark Atacama desert skies. Heading for its perihelion on January 3 Comet Leonard's visible tail has grown.

Giant Storms and High Clouds on Jupiter

Ср, Декабрь 29, 2021 - 8:30

What and where are these large ovals? They are rotating storm clouds on Jupiter imaged last month by NASA's Juno spacecraft. In general, higher clouds are lighter in color, and the lightest clouds visible are the relatively small clouds..

Sun Halo over Sweden

Вт, Декабрь 28, 2021 - 8:30

What's happened to the Sun? Sometimes it looks like the Sun is being viewed through a giant lens. In the featured video, however, there are actually millions of tiny lenses: ice crystals. Water may freeze in the atmosphere into..

Comet Leonard behind JWST Launch Plume

Пн, Декабрь 27, 2021 - 7:30

Which one of these two streaks is a comet? Although they both have comet-like features, the lower streak is the only real comet. This lower streak shows the coma and tail of Comet Leonard...

James Webb Space Telescope over Earth

Вс, Декабрь 26, 2021 - 8:30

There's a big new telescope in space. This one, the James Webb Space Telescope (JWST), not only has a mirror over five times larger than Hubble's in area, but can see better in infrared light.

The Tail of a Christmas Comet

Сб, Декабрь 25, 2021 - 8:30

The tail of a comet streams across this three degree wide telescopic field of view captured under dark Namibian skies on December 21. In outburst only a few days ago and just reaching naked eye visibility Comet Leonard (C/2021 A1) is this..

A Study of Double-Mode High-Amplitude Delta Scuti Variable Stars Pulsating in the Fundamental and Fi

Пт, Декабрь 24, 2021 - 16:27

I present a detection of 118 new double-mode high-amplitude Delta Scuti variable stars, HADS(B) type, pulsating in the fundamental and first overtone modes. We analyzed all observations available for these stars in the ASAS-SN online..

M1: The Crab Nebula

Пт, Декабрь 24, 2021 - 8:30

The Crab Nebula is cataloged as M1, the first object on Charles Messier's famous 18th century list of things which are not comets. In fact, the Crab is now known to be a supernova remnant, debris from the death explosion of a massive star,..

Астрономическая неделя с 27 декабря 2021 года по 2 января 2022 года

Пт, Декабрь 24, 2021 - 7:23

На данной неделе 28 декабря долгопериодическая переменная звезда R Дракона достигнет максимума блеска (5m), а Луна (Ф= 0,37-) пройдет..

Three Planets and a Comet

Чт, Декабрь 23, 2021 - 8:30

Are you still looking for that perfect holiday gift for an astronomer? If your night sky is dark and horizon clear enough, the Solar System may have done your shopping for you. Send them outside after sunset to see three planets and a..

Launch of the IXPE Observatory

Ср, Декабрь 22, 2021 - 8:30

Birds don't fly this high. Airplanes don't go this fast. The Statue of Liberty weighs less. No species other than human can even comprehend what is going on, nor could any human just a millennium ago. The launch of a

Solstice Sun and Milky Way

Вт, Декабрь 21, 2021 - 8:30

Welcome to December's solstice, first day of winter in the north and summer for the southern hemisphere. Astronomical markers of the seasons, solstice and equinox dates are based on the Sun's place in its annual journey along the ecliptic,..