The sky on
your birthday.
Mimas: Small Moon with a Big Crater
Mimas is a small moon of Saturn, mostly made of water ice with some rock. It has a remarkably large impact crater, named Herschel, after its discoverer, William Herschel. If the impact had been much stronger, it would have destroyed the entire moon. Mimas' low gravity is just enough to pull it into a sphere, but weak enough to allow such a prominent surface feature.
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 25 April 2011 Dwarf galaxy: small but perfectly formed See it as a poster -
Released on 25 April 2012 The star cluster NGC 6604 and its surroundings See it as a poster -
Released on 25 April 2016 A glittering sphere of stars See it as a poster -
Released on 25 April 2005 The Whirlpool Galaxy (M51a) with it's sparkling arms is the first galaxy found to have a spiral structure. See it as a poster -
Released on 25 April 2012 Wide-field view of the sky around the cluster NGC 6604 See it as a poster
In tropical astrology, 25 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 25 APR 1999.
Questions about April 25, 1999
What space photo was released on April 25, 1999?
NASA's Astronomy Picture of the Day for April 25, 1999 was "Mimas: Small Moon with a Big Crater". It's the card at the top of this page.
What was the Moon's phase on April 25, 1999?
A waxing gibbous moon, about 72% lit.
What day of the week was April 25, 1999?
April 25, 1999 was a Sunday, day 115 of the 365 days in 1999.
Was there a meteor shower on April 25, 1999?
Yes: the Lyrid shower, peaked 3 days ago.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.