Write brief comments on the following:
(a) Mercury
(b) Venus
Answers
Answer:
mercury...............
Answer:
"Mercury is the smallest and closest planet to the sun in the Solar System. Its orbit around the Sun takes 87.97 Earth days, the shortest of all the planets in the Solar System.
Distance from Sun: 57.91 million km
Orbital period: 88 days
Length of day: 58d 15h 30m
Radius: 2,439.7 km
Mass: 3.285 × 10^23 kg (0.055 M⊕)
Gravity: 3.7 m/s²"
"Venus is the second planet from the Sun. It is named after the Roman goddess of love and beauty. As the second-brightest natural object in Earth's night sky after the Moon, Venus can cast shadows and can be, on rare occasion, visible to the naked eye in broad daylight.
Length of day: 116d 18h 0m
Orbital period: 225 days
Distance from Sun: 108.2 million km
Surface area: 460.2 million km²
Sidereal rotation period: −243.025 d (retrograde)
Equatorial rotation velocity: 6.52 km/h (1.81 m/s)"