Astronomy Picture of the Day · February 29, 2004

Julius Caesar and Leap Days

The Astronomy Picture of the Day for February 29, 2004 is “Julius Caesar and Leap Days,” an image. It is credited to Credit: Rune Rysstad. The original explanation runs about 209 words.

From the explanation

“Today, February 29th, is a leap day – a relatively rare occurrence. In 46 BC, Julius Caesar , pictured above in a self-decreed minted coin, created a calendar system that added one leap day every four years.”

— APOD editors, February 29, 2004

Read the full explanation on science.nasa.gov

At a glance

Date: February 29, 2004
Type: Image
Credit: Credit: Rune Rysstad
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 209 words

All of February 2004 → · 2004 by month → · Full archive since 1995 →

Topics in this entry

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On this day: February 29 in other years

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Source

Astronomy Picture of the Day, February 29, 2004 — science.nasa.gov/image-article/apod-2004-february-29-julius-caesar-and-leap-days

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.