Uranus has a radius of 25,500 km, and a mass of 14.5 Earth's. It has a density similar to Jupiter: 1.27 gm/cm 3. It also spins rapidly, and has a day of 17 hours and 14 minutes. This is the internal rotation period, the cloud layers rotate in about 14 hours.eptune has 17.2 Earth masses, so it is more massive than Uranus. Note, however, that it is smaller in size than Uranus, having a radius of 24,700 km. Thus, it must have a higher density: 1.63 gm/cm 3. Neptune has a rotation period of 16 hours.
gracious. adj. 1. characterized by or showing kindness and courtesy. 2. condescendingly courteous, benevolent, or indulgent. 3. characterized by or suitable for a life of elegance, ease, and indulgence: gracious living; gracious furnishings. 4. merciful or compassionate. 5. fortunate, prosperous, or happy.
Behaviour that is respectful and considerate of other people: he always treated me with the utmost politeness [count noun]: the daily politenesses of pleases and thank yous. More example sentences.Synonyms. 1  I am sure you'll be amazed by the support crew's politeness.ehaviour that is respectful and considerate of other people: he always treated me with the utmost politeness [count noun]: the daily politenesses of pleases and thank yous. More example sentences.