Theoretical studies of this phase of the planet-forming process suggest that several bodies the size of the Moon or Mars must have formed in addition to the planets found today.
An almanac provides data on the rising and setting times of the Sun and Moon, the phases of the Moon, the positions of the planets, schedules of high and low tides, and a register of ecclesiastical festivals and saints' days.
Biodynamic viticulture, recently derived from the theories of Rudolf Steiner and practiced by several top domaines, obeys the astrological calendar: pruning and fertilizing are governed by the phases of the moon and the passage of the planets.
Planetary longitudes, heliacal rising and setting of the planets, conjunctions among the planets and stars, solar and lunar eclipses, and the phases of the Moon are among the topics Bhaskara discusses in his astronomical treatises.
Since the astronomers were able to detect oxygen, magnesium, iron and silicon in the atmospheres of four of the white dwarfs, they must have been observing the final phase of the planets' death, as shattered material rained down on the stars at staggering rates of up to 2.2 million pounds (1 million kilograms) per second.
Extrasolar planets have phases similar to the phases of the Moon.
We studied the TOC of four phases of the planet, with respect to a remote observer.
Four hundred years ago, Galileo was the first to observe similar phases of the planet Venus.
As the planet moves around its parent star, different phases of the planet become visible to the observer (Fig. 11).
Lastly, we present four different phases of the planet's TOC as viewed by an observer.
