ephemeris
51Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals …
52Barycentric Dynamical Time — (TDB) was a time standard used to take account of time dilation when calculating orbits of planets, asteroids, comets and interplanetary spacecraft in the Solar system. It was based on a Dynamical time scale but was not well defined and not… …
53GPS signals — Global Positioning System (GPS) satellites broadcast radio signals to enable GPS receivers to determine location and synchronized time. Anatomy of a GPS signal GPS signals include ranging signals, used to measure the distance to the satellite,… …
54ΔT — This article is about the time difference. For the temperature difference, see psychrometrics. ΔT vs. time from 1657 to 1984[1] ΔT, Delta T, delta T, deltaT, or DT is the time difference obtained by subtracting Universal Time (UT) from… …
55Julian calendar — The Julian calendar began in 45 BC (709 AUC) as a reform of the Roman calendar by Julius Caesar. It was chosen after consultation with the astronomer Sosigenes of Alexandria and was probably designed to approximate the tropical year (known at… …
56Coordinated Universal Time — UTC redirects here. For other uses, see UTC (disambiguation). Coordinated Universal Time (abbreviated UTC) is the primary time standard by which the world regulates clocks and time. It is one of several closely related successors to Greenwich… …
57Babylonischer Kalender — Der babylonische Kalender war ein Lunisolarkalender, in einem Normaljahr bestehend aus 12 Monaten, denen in Schaltjahren ein weiterer Monat hinzugefügt wurde. Das Normaljahr war etwa 11 Tage kürzer als ein Jahr in einem Solarkalender.… …
58Kurasch — Kyros II. im Olympia Park von Sydney (Nachbildung des Originals vom Relief in Pasargadae) Kyros II. (altpersisch Kūruš, babylonisch Kuraš, elamisch Kuraš, aramäisch Kureš …
59Kures II. — Kyros II. im Olympia Park von Sydney (Nachbildung des Originals vom Relief in Pasargadae) Kyros II. (altpersisch Kūruš, babylonisch Kuraš, elamisch Kuraš, aramäisch Kureš …
60Kyros II. — Kyros II. im Olympia Park von Sydney (Nachbildung des Originals vom Relief in Pasargadae) Kyros II. (altpersisch Kūruš, babylonisch Kuraš, elamisch Kuraš, aramäisch Kureš, hebräisch כורש Koreš, lateinisch Cyr …
