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Space Station, Solar Prominences, Sun
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The Space Station Crosses a Spotless Sun
That's no sunspot. It's the International Space Station (ISS) caught passing in front of the Sun.
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Eagle Aurora over Norway
What's that in the sky? An aurora.
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Astronomy Picture of the Day: Active Prominences on a Quiet Sun
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.
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لکهی خورشیدی
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Sunspot
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sunspot1967&1968
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Sunspot AR-1520 کلوزآپ
روش آفوکال- چشمی 25 میلیمتر
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آرامش قبل از طوفان
sunspots AR-1520, AR-1519, AR-1521
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Sunspot AR-1520
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