Astronomy Picture of the Day · March 20, 2005

The Equal Night

The Astronomy Picture of the Day for March 20, 2005 is “The Equal Night,” an image. It is credited to Credit: STS-68 Crew , NASA. The original explanation runs about 141 words.

From the explanation

“Today, the Sun crosses the celestial equator heading north, marking the Vernal Equinox — the first day of spring in the Northern Hemisphere and autumn in the south . Equinox means equal night and with the Sun on the celestial equator , Earthlings will experience 12 hours of daylight and 12 hours of darkness.”

— APOD editors, March 20, 2005

Read the full explanation on science.nasa.gov

At a glance

Date: March 20, 2005
Type: Image
Credit: Credit: STS-68 Crew , NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 141 words

All of March 2005 → · 2005 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: March 20 in other years

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Source

Astronomy Picture of the Day, March 20, 2005 — science.nasa.gov/image-article/apod-2005-march-20-the-equal-night

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.