The sky on
your birthday.
Cyclone Paths on Planet Earth
This map shows the paths of all major cyclones, known as hurricanes in the Atlantic and typhoons in the Pacific, from 1985 through 2005. Cyclones primarily occur over water, as evaporating warm water provides their energy. They never cross, and rarely approach, the Earth's equator. This is because the Coriolis effect, which is essential for cyclone formation, diminishes to zero there.
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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 15 September 2021 See it as a poster -
The Earth on your day The Earth on 15 September 2021 · Baja California See it as a poster -
Released on 15 September 2026 IC 348 Crop: Central star cluster See it as a poster -
Released on 15 September 2026 IC 348 Crop: Stars and faint outflows See it as a poster -
Released on 15 September 2016 The sky around the active galaxy Markarian 1018 See it as a poster -
Released on 15 September 2026 Star-forming region IC 348 (NIRCam image) See it as a poster -
Released on 15 September 2021 The prominent city lights of Europe from Amsterdam to Paris and London across the English Channel are pictured See it as a poster
In tropical astrology, 15 SEP 2021 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 15 SEP 2021.
Questions about September 15, 2021
What space photo was released on September 15, 2021?
NASA's Astronomy Picture of the Day for September 15, 2021 was "Cyclone Paths on Planet Earth". It's the card at the top of this page.
What was the Moon's phase on September 15, 2021?
A first quarter moon, about 62% lit.
What day of the week was September 15, 2021?
September 15, 2021 was a Wednesday, day 258 of the 365 days in 2021.
What did the Sun and the Earth look like on September 15, 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.