The sky on
your birthday.
Abell 370: Galaxy Cluster Gravitational Lens
The strange arc in this image of galaxy cluster Abell 370 is a gravitational lens. Initially, astronomers were unsure what it was, as nothing like it had been seen before. In the mid-1980s, improved images revealed it to be light from a background galaxy, magnified and distorted by the cluster's immense gravity. This was a prototype of a new astrophysical phenomenon.
Heavy matte paper, about 200 gsm, printed in the United States and shipped free. The card stays free, the print is the thing you keep.
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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 Earth on your day The Earth on 21 September 2009 · Nile Delta and Sinai See it as a poster -
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 2009 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 2009.
Questions about September 21, 2009
What space photo was released on September 21, 2009?
NASA's Astronomy Picture of the Day for September 21, 2009 was "Abell 370: Galaxy Cluster Gravitational Lens". It's the card at the top of this page.
What was the Moon's phase on September 21, 2009?
A waxing crescent moon, about 5% lit.
What day of the week was September 21, 2009?
September 21, 2009 was a Monday, day 264 of the 365 days in 2009.
What did the Sun and the Earth look like on September 21, 2009?
NASA's Terra satellite photographed the whole Earth that day. It's 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.