...We learn, therefore, that thetime of rotation of a planet is an important factor in its habitability... 
E. Walter Maunder 「Are the Planets Inhabited?」
...Butits case shows that a further condition of habitability has to besatisfied by a planet...
E. Walter Maunder 「Are the Planets Inhabited?」
...It is uncertain whether this would have any important effectupon the habitability of the planet, but it supplies the fourth possiblecase for the position of the axis...
E. Walter Maunder 「Are the Planets Inhabited?」
...The conclusions which the Italian astronomerarrived at with regard to its habitability were not supported bytelescopic evidence sufficient to justify such a belief...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...Finally, with regard to the habitability of Mars,Dr...
Cecil G. Dolmage 「Astronomy of To-day」
...Arguments in favor of the habitability of both sun and moon arecontained in this paper; but they rest more on a metaphysical than ascientific basis, and are to-day justly forgotten...
Edward Singleton Holden 「Sir William Herschel: His Life and Works」
...All the fine fancies of the habitability of this vaporousworld, all the calculations of the number of people that couldlive on the square miles of the planet and its enormous rings,are only fancy...
Henry Warren 「Recreations in Astronomy」
...Thus is revived the old controversy between Whewell andBrewster as to the habitability of the planets...
George Forbes 「History of Astronomy」
...It is, therefore, upon the question of the presence of water thatthe question of the habitability of a given world chiefly turns...
E. Walter Maunder 「Are the Planets Inhabited?」
...Such rapid variations in solar heat must inthemselves exercise a profound effect on the habitability of Mercury...
Robert Stawell Ball 「The Story of the Heavens」
...There are worlds that havenot yet reached the conditions of habitability by men, and worldsthat have passed these conditions long since...
Henry Warren 「Recreations in Astronomy」
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