Sentences with phrase «sidereal year»
The time taken by the sun to return to the same fixed star is called the Sidereal year, and consists of 365.2563612 solar days (or 365 days 6 hours 9 minutes 9.6 seconds).
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He decided on a three - pronged strategy: going on the lecture circuit, delivering talks on astronomy to audiences in several major cities around the country; writing books; and launching a new monthly astronomy magazine, with a subscription price of $ 3 per year: The Sidereal Messenger.
The nine - foot - tall London clock uses a slowly rotating torsional pendulum, ticks once every 30 seconds, and tracks hours, sidereal and solar years, centuries, phases of the moon, and the zodiac — and happens to be hauntingly beautiful.
Furthermore, Alpha Centauri A's sidereal period of approximately eighty years means that this star would move through the local ecliptic as slowly as Uranus with its eighty - four year period, but as the orbit of Alpha Centauri A is more elliptical, its apparent magnitude will be far more variable.
The sidereal periods for Uranus and Neptune are 84.02 and 164.79 years, respectively.
``... related to the spring tidal period of Jupiter and Saturn (range between 9.5 and 10.5 years, and median 9.93 years) and to the tidal sidereal period of Jupiter (about 11.86 years).