planets Flashcards
how does the planets revolve around the sun
elliptical orbit
two groups of planets
- inner planets
- outer planets
inner planets -
aka terrestrial or rocky planets
mercury, venus, earth and mars
outer planets -
aka jovial or gaseous planets
Jupiter, saturn , uranus and neptune
which is the smallest planet that is also the nearest to the sun
mercury
what is the revolution period of mercury
88 days
what is the fastest planet in terms of motion
mercury
which planet have no atmosphere and have extreme temperature
mercury
mars is aka [why?]
the red planet , coz of the presence of iron oxide in red soil and pink sky
which is the brightest planet after the sun and moon
venus
which is the hottest planet
venus 475’ c
venus is aka
morning and evening star
the largest moon in the solar system [satellite]
ganymede, satellite of jupiter
what are the 2 natural satellites of mars
- demos [the smallest satellite in the whole system]
- phobes
earth is aka
blue planet 71% water
revolution period of the earth
365 days 6 hours
jupiter is aka
the winter planet coz average temp. is very low
olympus mons
largest volcano in the solar system in mars
nix olympia
the highest mountain [3x higher than mount everest] on mars
largest planet of the solar system
jupiter
total no. of satellites of jupiter
63
what is the 2nd largest planet of the solar system
saturn
saturn is aka
the ringed planet coz it have 7 rings
what is the 3rd largest planet of the solar system
uranus
when was uranus discovered
1781 by sir william herschel
uranus is aka
the laying planet coz of tremendous tilt
what color is uranus
greenish coz of methane, hydrogen, helium and ammonia gas in the atmosphere
what is the 8th planet of solar system
Neptune
revolution period of neptune
165 years
what planets revolves clockwise
uranus and venus
which planet is similar to uranus
neptune
how many satellites does neptune have
13
when was neptune discovered
1846 by john galle
what is the 9th planet
pluto
which planet is considered the smallest planet
pluto
when was pluto discovered
1930 by claude tombaugh
