The sky on
your birthday.
“Airglow, Gegenschein, and Milky Way” is copyrighted by Yuri Beletsky. NASA has permission to show it and we don't, so it isn't on this card.
See it on NASA's siteThis mosaic of images from Las Campanas Observatory in Chile shows an unusually intense green airglow above thin clouds. Airglow is light produced by chemical reactions in the atmosphere, found all over the globe. Unlike aurorae, which are caused by energetic charged particles, airglow is due to chemiluminescence. The image also captures the Milky Way and the gegenschein, a faint brightening of the night sky in the antisolar direction.
The Sun on 20 April 2013
NASA SDO took this picture on 20 April 2013, the day itself, not a release date.
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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The Sun on your day The Sun on 20 April 2013 See it as a poster -
The Earth on your day The Earth on 20 April 2013 · Red Sea See it as a poster -
Released on 20 April 2011 The disturbed galactic duo NGC 3169 and NGC 3166 See it as a poster -
Released on 20 April 2017 A sea of galaxies See it as a poster -
Released on 20 April 2011 A rose made of galaxies See it as a poster -
Released on 20 April 2026 Trifid Nebula (Wide Field Camera 3 Image) See it as a poster -
Released on 20 April 2011 Wide-field view of the sky around NGC 3169 and NGC 3166 See it as a poster
In tropical astrology, 20 APR 2013 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 20 APR 2013.
Questions about April 20, 2013
What space photo was released on April 20, 2013?
NASA's Astronomy Picture of the Day for April 20, 2013 was "Airglow, Gegenschein, and Milky Way". It's a photographer's copyrighted image, so we link to it on NASA's site and show the Sun or the Earth that day instead.
What was the Moon's phase on April 20, 2013?
A waxing gibbous moon, about 74% lit.
What day of the week was April 20, 2013?
April 20, 2013 was a Saturday, day 110 of the 365 days in 2013.
Was there a meteor shower on April 20, 2013?
Yes: the Lyrid shower, peaks in 2 days.
What did the Sun and the Earth look like on April 20, 2013?
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.