Astronomy Picture of the Day ·

A Superior Conjunction Of Mercury

The Astronomy Picture of the Day for September 8, 1999 is “A Superior Conjunction Of Mercury,” an image. It is credited to Credit: SOHO – LASCO Consortium, ESA, NASA. The original explanation runs about 170 words.

A Superior Conjunction Of Mercury
Credit: SOHO – LASCO Consortium, ESA, NASA Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“In astronomical parlance , an interior planet is at superior conjunction when it is located on the opposite side of the Sun from Earth. Mercury , the solar system’s innermost planet, zips past this point in its orbit today.”

— APOD editors, September 8, 1999

Read the full explanation on science.nasa.gov

At a glance

Date
September 8, 1999
Type
Image
Credit
Credit: SOHO – LASCO Consortium, ESA, NASA
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 170 words

All of September 1999 → · 1999 by month → · Full archive since 1995 →

Topics in this entry

The Sun

Topics are matched from words in the title and explanation.

On this day: September 8 in other years

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Source

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.