The sky on
your birthday.
A Large Tsunami Shock Wave on the Sun
Tsunamis this large do not happen on Earth. In 2006, a large solar flare from an Earth-sized sunspot produced a tsunami-type shock wave on the Sun. The tsunami wave was captured moving out from active region AR 10930 by the Optical Solar Patrol Network, OSPAN, telescope. The resulting shock wave, known as a Moreton wave, compressed and heated gasses, including hydrogen, in the Sun's photosphere.
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Released on your day
Space pictures released on your month and day in other years, or a few days either side. Each one is sharp enough to print as a poster.
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The Sun on your day The Sun on 25 September 2011 See it as a poster -
The Earth on your day The Earth on 25 September 2011 · Colorado Plateau See it as a poster -
Released on 25 September 2017 Stars and spirals See it as a poster -
Released on 25 September 2014 The area around dwarf galaxy DDO 68 (ground-based image) See it as a poster -
Released on 25 September 2000 Jovian Ring System Mosaic See it as a poster -
Released on 25 September 2000 Blocks in the Europan Crust Provide More Evidence of Subterranean Ocean See it as a poster -
Released on 25 September 2023 An aurora intersects Earth's airglow beneath a starry sky in this photograph from the International Space Station as it See it as a poster
In tropical astrology, 25 SEP 2011 falls under Libra (♎). The sign's window runs from 09-23 through 10-22. Libra is the only zodiac constellation named for an inanimate object, the scales of judgment. The Sun was crossing this region of the sky on 25 SEP 2011.
Questions about September 25, 2011
What space photo was released on September 25, 2011?
NASA's Astronomy Picture of the Day for September 25, 2011 was "A Large Tsunami Shock Wave on the Sun". It's the card at the top of this page.
What was the Moon's phase on September 25, 2011?
A waning crescent moon, about 5% lit.
What day of the week was September 25, 2011?
September 25, 2011 was a Sunday, day 268 of the 365 days in 2011.
What did the Sun and the Earth look like on September 25, 2011?
NASA's Solar Dynamics Observatory photographed the Sun that day, and NASA's Terra satellite photographed the whole Earth. Both are on this page, next to the card.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.