Happy MJD60000!

In observational astronomy, in order not to have problems with months and leap years, the time is counted in Julian days. The Julian day (JD) is the continuous count of days since the beginning of the Julian period, Greenwich noon on January 1, 4713 BC, until the given time. For almost my entire career, this number has been like JD245####. The number is long, so in my papers, I usually use only the last 4 digits, a kind of unofficial format. But there is an official format, Modified Julian Day (MJD), which is MJD=JD-2400000.5
Well, today my format stopped working because today is MJD 60000!

Bookmark and Share


This entry was posted on Saturday, February 25th, 2023 at 00:00 and is filed under Astronomy, Observations, Work. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

Comments are closed.