Astronomy Picture of the Day ·
Julius Caesar and Leap Days
The Astronomy Picture of the Day for February 29, 2020 is “Julius Caesar and Leap Days,” an image. It is credited to Image Credit & License: Classical Numismatic Group, Inc. , Wikimedia. The original explanation runs about 198 words.
From the explanation
“In 46 BC Julius Caesar reformed the calendar system . Based on advice by astronomer Sosigenes of Alexandria , the Julian calendar included one leap day every four years to account for the fact that an Earth year is slightly more than 365 days long.”
— APOD editors, February 29, 2020
Read the full explanation on science.nasa.gov
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At a glance
- Date
- February 29, 2020
- Type
- Image
- Credit
- Credit: Image Credit & License: Classical Numismatic Group, Inc. , Wikimedia
- Copyright
- No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
- Explanation length
- About 198 words