The sky on
your birthday.
Jets from Unusual Galaxy Centaurus A
Centaurus A is a galaxy 12 million light-years away. From its center, a giant black hole expels jets of plasma over a million light-years long. These jets light up the galaxy in this composite image. After leaving the galaxy, the jets inflate large radio bubbles that glow for millions of years.
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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 January 2021 See it as a poster -
The Earth on your day The Earth on 17 January 2021 · Sahara, Algeria See it as a poster -
Released on 17 January 2017 Full disk of the Sun See it as a poster -
Released on 17 January 2017 ALMA observes the Sun See it as a poster -
Released on 17 January 2013 Overview of the Large Magellanic Cloud (ground-based image) See it as a poster -
Released on 17 January 2018 Wide-field image of the sky around the globular star cluster NGC 3201 See it as a poster -
Released on 17 January 2025 Supernova Remnant Cassiopeia A See it as a poster
In tropical astrology, 17 JAN 2021 falls under Capricorn (♑). The sign's window runs from 12-22 through 01-19. Capricorn is the dimmest zodiac constellation, but rich in deep-sky objects south of the celestial equator. The Sun was crossing this region of the sky on 17 JAN 2021.
Questions about January 17, 2021
What space photo was released on January 17, 2021?
NASA's Astronomy Picture of the Day for January 17, 2021 was "Jets from Unusual Galaxy Centaurus A". It's the card at the top of this page.
What was the Moon's phase on January 17, 2021?
A waxing crescent moon, about 15% lit.
What day of the week was January 17, 2021?
January 17, 2021 was a Sunday, day 17 of the 365 days in 2021.
What did the Sun and the Earth look like on January 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.