The sky on
your birthday.
Solar Shock Wave
On September 24, 1997, a shock wave blasted across the Sun's surface at speeds of 250 to 600 kilometers per second. Observer Barry Reynolds photographed the expanding shock front in the light emitted by hydrogen atoms. His discovery was confirmed by an extreme ultraviolet image from the SOHO satellite observatory. That image showed the shock ramming through the Sun's upper atmosphere, originating from a bright solar flare.
We cannot put this date's photograph on paper at poster size. We can print the nearest public archive plate to your date instead.
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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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Released on 30 April 1999 Giant interacting galaxies NGC 6872/IC 4970 See it as a poster -
Released on 30 April 2012 The eye of the storm See it as a poster -
Released on 30 April 1999 Star-forming region RCW 108 in Ara See it as a poster -
Released on 30 April 2026 Starry spiral in a familiar neighbourhood See it as a poster -
Released on 30 April 2002 A 'wallpaper' of distant galaxies is a stunning backdrop for a runaway galaxy See it as a poster
In tropical astrology, 30 APR 1999 falls under Taurus (♉). The sign's window runs from 04-20 through 05-20. Taurus holds the Pleiades star cluster and Aldebaran, the red giant that marks the eye of the Bull. The Sun was crossing this region of the sky on 30 APR 1999.
Questions about April 30, 1999
What space photo was released on April 30, 1999?
NASA's Astronomy Picture of the Day for April 30, 1999 was "Solar Shock Wave". It's the card at the top of this page.
What was the Moon's phase on April 30, 1999?
A full moon, about 100% lit.
What day of the week was April 30, 1999?
April 30, 1999 was a Friday, day 120 of the 365 days in 1999.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.