What is the definition of ephemerides?

/ (ɪˈfɛmərɪs) / noun plural ephemerides (ˌɛfɪˈmɛrɪˌdiːz) a table giving the future positions of a planet, comet, or satellite. an annual publication giving the positions of the sun, moon, and planets during the course of a year, information concerning eclipses, astronomical constants, etc.

Where does the word ephemera come from?

The etymological origin of Ephemera (ἐφήμερα) is the Greek epi (ἐπί) – “on, for” and hemera (ἡμέρα) – “day”. This combination generated the term ephemeron in neuter gender; the neuter plural form is ephemera, the source of the modern word, which can be traced back to the works of Aristotle.

How do you pronounce ephemerides?

  1. Phonetic spelling of ephemerides. e-fe-MER-i-deez.
  2. Meanings for ephemerides.
  3. Examples of in a sentence.
  4. Translations of ephemerides.

Who invented ephemeris?

History (1952 standard) It was proposed in 1948 by G M Clemence. From the time of John Flamsteed (1646–1719) it had been believed that the Earth’s daily rotation was uniform.

What Valerian means?

1 : any of a genus (Valeriana of the family Valerianaceae, the valerian family) of perennial herbs and shrubs many of which possess medicinal properties. 2 : a preparation of the dried rhizome and roots of the garden heliotrope (Valeriana officinalis) used especially formerly as a carminative and sedative.

What’s another word for ephemera?

What is another word for ephemera?

memorabilia collectibles
collectables keepsakes
mementos possessions
relics remembrances
reminders souvenirs

What is GPS ephemeris?

GPS satellites transmit information about their location (current and predicted), timing and “health” via what is known as ephemeris data. This data is used by the GPS receivers to estimate location relative to the satellites and thus position on earth.

What are the different types of ephemeris?

There are various planetary satellite ephemeris services in the world….Ephemeris

  • GNSS.
  • Jupiter.
  • Ocean Tide.
  • Earth Rotation.
  • Solar System.
  • Global Positioning System.
  • Orbitals.
  • Precession.