Credit & Copyright: NASA,
SDO;
Processing & Copyright:
еenol еanli &
Uдur дkizler;
Text:
Cecilia Chirenti
(NASA
GSFC,
UMCP,
CRESST II)
Explanation:
How many
sunspots can you see?
The central image shows the many sunspots that occurred in 2025, month by month
around the circle, and all together in the grand central image.
Each sunspot is magnetically cooled and so appears dark
-- and can last from days to months.
Although the
featured images originated from
NASA's
Solar Dynamics Observatory,
sunspots can be easily seen with a small telescope or
binoculars equipped with a
solar filter.
Very large sunspot groups like
recent AR 4366 can even be seen with
eclipse glasses.
Sunspots are still
counted by eye,
but the total number is not considered exact
because they frequently
change and break up.
Last year, 2025, coincided with a
solar maximum, the period of most
intense magnetic activity during its 11-year
solar cycle.
Our Sun remains
unpredictable in many ways,
including when it ejects
solar flares that will impact the
Earth, and
how active
the next solar cycle will be.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
|
Публикации с ключевыми словами:
Sun - sunspot - Солнце - Солнечные пятна
Публикации со словами: Sun - sunspot - Солнце - Солнечные пятна | |
См. также:
Все публикации на ту же тему >> | |
