03-01-2018, 04:29 PM
Don't confuse
*Morning star -Venus
*Evening star -Venus
*Brightest planet -Venus
*Pet of the Sun -Venus
*Twin planet of the Earth -Venus
*Red planet -Mars
*Blue planet -Earth
*Green planet -Uranus
*Rolling planet -Uranus
*Lying planet -Uranus
*Father sky -Uranus
*Windy planet-Nepture
*Golden Giant-Saturn
*Speedy messenger-Mercury
Mercury
*Period of Revolution-88 days
*Period of Rotation -58 days
*The planet which is known as ‘ Roman God of Messenger’
Ans : Mercury
*Smallest planet
Ans : Mercury
*The planet nearest to the sun
Ans : Mercury
*The fastest revolving planet
Ans : Mercury
*The first space craft to reach Mercury
Ans : Mariner 10 (USA, 1973)'
*The planet without atmosphere due to low escape velocity and high temperature
Ans : Mercury
*The most cratered planet in solar system
Ans : Mercury
*The planet which is known as ‘‘will -O- the wisp”
Ans : Mercury
*Second hottest and second densest body in solar system
Ans : Mercury
Venus
*Period of Revolution- 224.7 days
*Period of Rotation - 243 days
*Venus is the roman goddess of love/beauty
*The second nearest planet from the sun
Ans : Venus
*The planet nearest to the earth
Ans : Venus
*The hottest planet
Ans : Venus (462°C)
*First person to identify that the morning star and the evening star was the same Venus
Ans : Pythagores
*The planet’s orbit which is most nearly circular of that of any other planet
Ans : Venus
*The only planet that rotates from east to west
Ans : Venus (Sun appears to rise in the east and set in the west)
*The planet takes more time to complete one rotation than revolution
Ans : Venus
*The major gas present in Venus atmosphere
Ans : Carbon dioxide
*The planet with the longest day length
Ans : Venus
*The highest mountain ranges in Venus.
Ans : Maxwell Mount
*The first space craft sent to Venus
Ans : Mariner - 2 (USA, 1962)
*The first spacecraft to land on Venus
Ans : Venera-7
*The first orbiter which produced detailed maps of Venus using radar
Ans : Magellan (USA)
*The planet which reflects about 70% sunlight striking it
Ans : Venus
*The second brightest object in the night sky after moon
Ans : Venus
*Because of the name “the morning star”, Venus is sometimes called as
Ans : Lucifer
Don't Forget
*Largest planet - Jupiter
*Smallest planet - Mercury
*Hottest planet - Venus
*Coldest planet - Neptune
*Fastest rotating planet - Jupiter
*Slowest rotating planet - Venus
*Fastest revolving planet - Mercury
*Slowest revolving planet - Neptune
*Farthest planet to the sun - Neptune Closest planet to the sun-Mercury
*Planet with highest density - Earth
*Planet with lowest density - Saturn
*Planet with longest day - Venus
*Planet with shortest day - Jupiter
*Highest escape velocity - Jupiter
*Lowest escape velocity - Mercury
*Planet with highest weight - Jupiter
*Planet with lowest weight - Saturn
Telescope
*The first space Telescope
Ans : Hubble Space Telescope.
*The space shuttle ‘Discovery’ placed the Hubble space Telescope in the space in 1990.
*The Hubble Space Telescope was launched by NASA to take pictures of outer space. Telescope was invented by
Ans : Hans Lippershey (1608)
*Telescope was first used by
Ans : Galileo (1609)
*Chandra X-ray observatory was launched by NASA in
Ans : 1999
*The observatory was named after Dr. S. Chandrashekhar,Indian-American Physicist
*Asia’s largest and first of its kind optical telescope
Ans : ARIES (Aryabhatta Research Institute of Observational Sciences (Uttarakhand)
*The Aries telescope is a joint international effort between Indian, Russian and Belgian Scientist.
Earth
*Period of Revolution -365 days,5 hours,48 minutes,45.51 seconds
*Period of Rotation -23 hours,56 minutes 4.09 seconds
*The largest inner planet
Ans : Earth
*The most densest planet
Ans : Earth
