The sky on
your birthday.
“Video: Flash on Jupiter” is copyrighted by T. Humbert, S. Barré, A. Desmougin & D. Walliang (Société Lorraine d'Astronomie), Astroqueyras. NASA has permission to show it and we don't, so it isn't on this card.
See it on NASA's siteA few days ago, several groups noticed a two-second burst of light on Jupiter. Such flashes have been seen before, with the most famous being a series of impacts in 1994 from Comet Shoemaker-Levy 9. Since then, at least seven impacts have been recorded on Jupiter, usually by amateur astronomers. The featured video shows variations in the flash's brightness.
The Sun on 17 September 2021
NASA SDO took this picture on 17 September 2021, 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 17 September 2021 See it as a poster -
The Earth on your day The Earth on 17 September 2021 · Red Sea See it as a poster -
Released on 17 September 2012 Wide-field view of NGC 4634 and NGC 4633 (ground-based image) See it as a poster -
Released on 17 September 2018 An explosive phoenix See it as a poster -
Released on 17 September 2025 Asian city lights and green fishing boat lights See it as a poster -
Released on 17 September 2018 Knots and bursts See it as a poster -
Released on 17 September 2014 Hurricane Edouard See it as a poster
In tropical astrology, 17 SEP 2021 falls under Virgo (♍). The sign's window runs from 08-23 through 09-22. Virgo is the largest zodiac constellation, holding the heart of the Virgo galaxy cluster. The Sun was crossing this region of the sky on 17 SEP 2021.
Questions about September 17, 2021
What space photo was released on September 17, 2021?
NASA's Astronomy Picture of the Day for September 17, 2021 was "Video: Flash on Jupiter". 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 September 17, 2021?
A waxing gibbous moon, about 81% lit.
What day of the week was September 17, 2021?
September 17, 2021 was a Friday, day 260 of the 365 days in 2021.
What did the Sun and the Earth look like on September 17, 2021?
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.