The sky on
your birthday.
The Sun Oscillates
Our Sun is not a static ball of gas; it constantly oscillates, with large patches vibrating in and out. This image shows one mode of solar oscillation, with blue indicating outward motion and red indicating inward motion. Helioseismology, the study of these vibrations, allows scientists to probe the Sun's interior, much like seismologists study Earth's interior using earthquakes. It reveals the dynamic nature of our star.
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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Released on 15 June 2022 Infrared image of 30 Doradus See it as a poster -
Released on 15 June 2022 Composite infrared and radio image of 30 Doradus See it as a poster -
Released on 15 June 2022 Radio image of the 30 Doradus nebula with data from ALMA See it as a poster -
Released on 15 June 2023 M15: Dense Globular Star Cluster See it as a poster -
Released on 15 June 2022 As the Moon sets below Earth's horizon the atmosphere refracts, or bends, its light making it appear flatter in this See it as a poster
In tropical astrology, 15 JUN 1999 falls under Gemini (♊). The sign's window runs from 05-21 through 06-20. Gemini is named for the twin stars Castor and Pollux, both bright enough to spot without a telescope. The Sun was crossing this region of the sky on 15 JUN 1999.
Questions about June 15, 1999
What space photo was released on June 15, 1999?
NASA's Astronomy Picture of the Day for June 15, 1999 was "The Sun Oscillates". It's the card at the top of this page.
What was the Moon's phase on June 15, 1999?
A new moon, about 2% lit.
What day of the week was June 15, 1999?
June 15, 1999 was a Tuesday, day 166 of the 365 days in 1999.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.