The sky on
your birthday.
The Quintuplet Star Cluster
Bright clusters of stars form and disperse near the center of our galaxy. The Quintuplet Cluster, pictured here, formed four million years ago and is now slowly dispersing. It is located within 100 light-years of the Galactic center and is home to the Pistol Star, the brightest star yet cataloged in our galaxy. This picture was taken in infrared light, allowing us to see through the dust that usually obscures the region.
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 21 September 2010 A Nebula by Any Other Name See it as a poster -
Released on 21 September 2010 In the Grip of the Scorpion Claw See it as a poster -
Released on 21 September 2015 Spiral Galaxy M96 from Hubble See it as a poster -
Released on 21 September 2020 Dark Matter Surplus See it as a poster -
Released on 21 September 2022 Neptune Wide-Field (NIRCam Image) See it as a poster
In tropical astrology, 21 SEP 1999 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 21 SEP 1999.
Questions about September 21, 1999
What space photo was released on September 21, 1999?
NASA's Astronomy Picture of the Day for September 21, 1999 was "The Quintuplet Star Cluster". It's the card at the top of this page.
What was the Moon's phase on September 21, 1999?
A waxing gibbous moon, about 84% lit.
What day of the week was September 21, 1999?
September 21, 1999 was a Tuesday, day 264 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.