The sky on
your birthday.
Sigmoids Predict Solar Eruptions
On the Sun, S marks the spot. Solar explosions have been discovered to explode preferentially from regions marked with this letter. When two regions of high magnetic field strength approach each other, an X-ray bright S-shaped region called a sigmoid forms and quickly explodes in a Coronal Mass Ejection. The image captures one of these pre-eruption sigmoids.
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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 16 March 2012 Wide-field view of Messier 9 (ground-based image) See it as a poster -
Released on 16 March 2009 Galaxies Collide to Create Hot, Huge Galaxy See it as a poster -
Released on 16 March 2026 NGC 1566: The Spanish Dancer Galaxy See it as a poster -
Released on 16 March 2012 Hubble image of Messier 9 See it as a poster -
Released on 16 March 2004 Opportunity Studies Bait in Shark Cage See it as a poster
In tropical astrology, 16 MAR 1999 falls under Pisces (♓). The sign's window runs from 02-19 through 03-20. Pisces holds the location of the spring equinox in the current astronomical era. The Sun was crossing this region of the sky on 16 MAR 1999.
Questions about March 16, 1999
What space photo was released on March 16, 1999?
NASA's Astronomy Picture of the Day for March 16, 1999 was "Sigmoids Predict Solar Eruptions". It's the card at the top of this page.
What was the Moon's phase on March 16, 1999?
A new moon, about 1% lit.
What day of the week was March 16, 1999?
March 16, 1999 was a Tuesday, day 75 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.