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You entered: solar activity
![Активные протуберанцы на спокойном Солнце](https://images.astronet.ru/pubd/2018/08/20/0001433524/SolarProminences_Friedman_821.preview.jpg)
20.08.2018
Why is the Sun so quiet? As the Sun enters into a period of time known as a Solar Minimum, it is, as expected, showing fewer sunspots and active regions than usual. The quietness is somewhat unsettling, though, as so far this year, most days show no sunspots at all.
![Комета Хейла-Боппа прилетела точно по расписанию](https://images.astronet.ru/pubd/2002/10/17/0001180386/hb_may_eso_big.preview.gif)
25.07.1996
Late March and early April of 1996 marked a banner season for viewing the spectacular naked-eye comet Hyakutake. The spring of 1997 could well offer a similar cometary wonder, Comet Hale-Bopp. Discovered last year while approaching the inner solar sytem Hale-Bopp has been eagerly watched for signs that it will indeed brighten spectacularly.
![Слои полного солнечного затмения](https://images.astronet.ru/pubd/2017/09/27/0001390091/CoronaMatchup_Pasachoff_1024.preview.jpg)
27.09.2017
Neither rain, nor snow, nor dark of night can keep a space-based spacecraft from watching the Sun. In fact, from its vantage point 1.5 million kilometers sunward of planet Earth, NASA's SOlar Heliospheric Observatory (SOHO) can always monitor the Sun's outer atmosphere, or corona.
![Комета Хейла-Боппа: продолжающийся хвост](https://images.astronet.ru/pubd/2003/09/07/0001192752/halebopp1_eso_big.preview.jpg)
20.02.1998
Where is Hale-Bopp now? The Great Comet of 1997, one of the largest and most active comets ever, is outbound about 400 million miles from the sun. Too faint for viewing without telescopes or binoculars, Hale-Bopp is presently positioned in the very southerly constellation of Pictor.
![Активное Солнце во время полного затмения](https://images.astronet.ru/pubd/2013/11/11/0001295640/eclipsesun_pasachoff_960.preview.jpg)
11.11.2013
Sometimes, a total eclipse of the Sun is an opportunity. Taking advantage of such, the above image shows the solar eclipse earlier this month as covered and uncovered by several different solar observatories.
![Северное сияние над Аляской](https://images.astronet.ru/pubd/2013/12/28/0001297897/FairbanksAurora-07Dec2013wZimmerman900.preview.jpg)
28.12.2013
A remarkably intense auroral band flooded the northern night with shimmering colors on December 7. The stunning sequence captured here was made with a camera fixed to a tripod under cold, clear skies near Ester, just outside of Fairbanks, Alaska.
![Фильм об активном Солнце](https://images.astronet.ru/pubd/2006/12/09/0001218391/active_sun_4dec.preview.jpg)
4.12.2006
Plumes of hot gas shoot across the surface on even an average day on the Sun. Such volatile activity was captured in dramatic detail recently by the new Hinode satellite launched by Japan in late September.
![В зеленой компании: северное сияние над Норвегией](https://images.astronet.ru/pubd/2023/01/22/0001874180/greencompany_rive_960.preview.jpg)
22.01.2023
Raise your arms if you see an aurora. With those instructions, two nights went by with, well, clouds -- mostly. On the third night of returning to same peaks, though, the sky not only cleared up but lit up with a spectacular auroral display.
![Солнечный протуберанец: вид с SOHO](https://images.astronet.ru/pubd/2022/01/30/0001807732/sunprom3_soho_960.preview.jpg)
30.01.2022
How can gas float above the Sun? Twisted magnetic fields arching from the solar surface can trap ionized gas, suspending it in huge looping structures. These majestic plasma arches are seen as prominences above the solar limb.
![Комета 57P распадается на части](https://images.astronet.ru/pubd/2002/08/02/0001178731/comet57p_fernandez.preview.jpg)
2.08.2002
Comet 57P has fallen to pieces, at least 19 of them. Orbiting the Sun every 5.9 years or so this faint comet - also christened Comet 57P/du Toit-Neujmin-Delporte for its three 1941 co-discoverers - is simply...
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