The sky on
your birthday.
“A Conjunction of Comets” is copyrighted by Jose J. Chambo. NASA has permission to show it and we don't, so it isn't on this card.
See it on NASA's siteOn September 17, 2017, two comets, C/2017 O1 ASASSN and C/2017 P1 Nishimura, appeared together in the same telescopic field of view. Comet ASASSN, discovered by a robotic sky survey, shows a greenish coma from fluorescing diatomic carbon molecules. It was about 7.2 light-minutes from Earth. Comet Nishimura, with its long tail, was outbound from the Sun.
The Sun on 23 September 2017
NASA SDO took this picture on 23 September 2017, 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 23 September 2017 See it as a poster -
The Earth on your day The Earth on 23 September 2017 · Namib Desert See it as a poster -
Released on 23 September 2024 The new and improved IC 1954 See it as a poster -
Released on 23 September 2004 Most-Distant Galaxy Candidates in the Hubble Ultra Deep Field See it as a poster -
Released on 23 September 2015 The star formation region Messier 17 See it as a poster -
Released on 23 September 2019 Beacon of Light See it as a poster -
Released on 23 September 2015 Digitized Sky Survey Image of the Omega Nebula (M 17) See it as a poster
In tropical astrology, 23 SEP 2017 falls under Libra (♎). The sign's window runs from 09-23 through 10-22. Libra is the only zodiac constellation named for an inanimate object, the scales of judgment. The Sun was crossing this region of the sky on 23 SEP 2017.
Questions about September 23, 2017
What space photo was released on September 23, 2017?
NASA's Astronomy Picture of the Day for September 23, 2017 was "A Conjunction of Comets". 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 23, 2017?
A waxing crescent moon, about 7% lit.
What day of the week was September 23, 2017?
September 23, 2017 was a Saturday, day 266 of the 365 days in 2017.
What did the Sun and the Earth look like on September 23, 2017?
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.