Новости из категории: astronet

APOD: 2023 February 22 Б Our Increasingly Active Sun

Ср, Февраль 22, 2023 - 8:30

Our Sun is becoming a busy place. Only two years ago, the Sun was emerging from a solar minimum so quiet that months would go by without even a single sunspot. In contrast, already...

Three new delta Scuti stars in Cygnus

Вт, Февраль 21, 2023 - 10:50

I present my discovery and CCD observations of three new small-amplitude delta Scuti (DSCTC) stars. Two of them demonstrate multiperiodic pulsations. The paper contains detected frequencies, light curves, finding charts, and other..

APOD: 2023 February 21 Б Comet ZTF over Yosemite Falls

Вт, Февраль 21, 2023 - 8:30

They are both falling. The water in Yosemite Falls, California, USA, is falling toward the Earth. Comet ZTF is falling toward the Sun. This double cosmic cascade was captured late last month as fading Comet C/2022 E3 (ZTF)

APOD: 2023 February 20 Б NGC 1850: Not Found in the Milky Way

Пн, Февраль 20, 2023 - 8:30

There is nothing like this ball of stars in our Milky Way Galaxy. This is surprising because, at first glance, this featured image by the Hubble Space Telescope suggests that star cluster NGC 1850...

APOD: 2023 February 19 Б Seven Dusty Sisters in Infrared

Вс, Февраль 19, 2023 - 8:30

Is this really the famous Pleiades star cluster? Known for its iconic blue stars, the Pleiades is shown here in infrared light where the surrounding dust outshines the stars. Here three infrared colors have been mapped into visual..

Barred Spiral Galaxy NGC 1365 from Webb

Сб, Февраль 18, 2023 - 8:30

A mere 56 million light-years distant toward the southern constellation Fornax, NGC 1365 is an enormous barred spiral galaxy about 200,000 light-years in diameter. That's twice the size of our own barred spiral Milky Way.

Астрономическая неделя с 20 по 26 февраля 2023 года

Пт, Февраль 17, 2023 - 15:29

На данной неделе 20 февраля Луна (Ф= 0,01-) пройдет южнее Сатурна, а 21 февраля при фазе 0,03+ - южнее Нептуна. В этот же день Луна (Ф= 0,06+) пройдет..

2023 CX1 Meteor Flash

Пт, Февраль 17, 2023 - 7:30

While scanning the skies for near earth objects Hungarian astronomer Krisztiцn Sцrneczky first imaged the meter-sized space rock now cataloged as 2023 CX1 on 12 February 2023 at 20:18:07 UTC. That was about 7 hours before it impacted..

The Hydra Cluster of Galaxies

Чт, Февраль 16, 2023 - 8:30

Once upon a midnight dreary, while I pondered weak and weary, O'er volumes of astronomy and forgotten lore, I stumbled upon this snapshot, cosmic and eerie, A sight that filled my heart with awe and more.

APOD: 2023 February 15 Б Airglow Sky over France

Ср, Февраль 15, 2023 - 8:30

This unusual sky was both familiar and unfamiliar. The photographer's mission was to capture the arch of the familiar central band of our Milky Way Galaxy over a picturesque medieval manor. The surprise was that on this January evening,..

APOD: 2023 February 14 Б The Heart and Soul Nebulas

Вт, Февраль 14, 2023 - 8:30

Is the heart and soul of our Galaxy located in Cassiopeia? Possibly not, but that is where two bright emission nebulas nicknamed Heart and Soul can be found. The Heart Nebula, officially dubbed IC 1805 and visible in the..

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