The sky on
your birthday.
Methane Discovered on Distant Exoplanet
Astronomers have detected methane in the atmosphere of exoplanet K2-18b, a planet 124 light-years away in the constellation Leo. This exoplanet is larger and more massive than Earth, yet orbits within its star's habitable zone. The presence of both water vapor and methane makes K2-18b a compelling target in the search for extraterrestrial life. The James Webb Space Telescope continues to analyze its atmosphere.
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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 September 2023 See it as a poster -
The Earth on your day The Earth on 20 September 2023 · Caspian Sea See it as a poster -
Released on 20 September 2017 Wide-field image of the sky around U Antliae See it as a poster -
Released on 20 September 2005 Scarp at Head of Chasma Boreale See it as a poster -
Released on 20 September 2016 The Helix Nebula in Infrared See it as a poster -
Released on 20 September 2022 Hurricane Fiona is pictured from the International Space Station as it orbited 259 miles above the Atlantic Ocean north See it as a poster -
Released on 20 September 2021 On Clusters and Constellations See it as a poster
In tropical astrology, 20 SEP 2023 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 20 SEP 2023.
Questions about September 20, 2023
What space photo was released on September 20, 2023?
NASA's Astronomy Picture of the Day for September 20, 2023 was "Methane Discovered on Distant Exoplanet". It's the card at the top of this page.
What was the Moon's phase on September 20, 2023?
A waxing crescent moon, about 28% lit.
What day of the week was September 20, 2023?
September 20, 2023 was a Wednesday, day 263 of the 365 days in 2023.
What did the Sun and the Earth look like on September 20, 2023?
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.