Sun revolves around galaxy once in every 250 million years, this length of time is called _____.
Cosmic or Galactic Year
Mean Solar Year
Sidereal Year
Leap Year
Correct Answer :
A. Cosmic or Galactic Year
Related Questions
What la the difference between a gulf and a bay?
A gulf is big and a bay is small
A gulf is at a rivermouth and a bay is not
A bay is surrounded by cliffs and a gulf by lowland
Both are part of the sea that extend considerably into the land, but a bay usually has a wider entrance than a gulf
Sidereal means
Pertaining or referring to the stars
Pertaining or referring to the moon
Pertaining or referring to the Sun
Pertaining' or referring to the cosmic bodies
What meridian is the International Date Line?
The 180° meridian
The O° meridian
The 90° meridian
The 135° meridian
Which star la called the brightest star (Dog star)?
Sirius
Proxima Centaury
Orion
Pole Star
Among the following which planet takes maximum time for one revolution around the Sun?
Earth
Jupiter
Mars
Venus
What is the most accurate description of the shape of the earth?
a geoid
a spherical
an oblate sphere
a flat disc
Largest satellite in Solar System is ____.
Moon
Ganymede
Europa
Cheron
Sun revolves around galaxy once in every 250 million years, this length of time is called _____.
Cosmic or Galactic Year
Mean Solar Year
Sidereal Year
Leap Year
The most important constituent of the Sun's mass is.
Hydrogen
Helium
Silicon
Iron
1 and 2
2 and 3
3 and 4
1,2 and 4
What part of the moon's surface can be visible from the earth?
1.59
1.41
0.5
1/3rd
Average temperature of the Earth is.
14°C
24°C
34°C
20°C
The solar eclipse takes place when
The Earth comes between the Sun and the Moon
The Moon passes between the Sun and the Earth
The Sun comes between the Earth and the Moon
The Planets of the Solar System lies on the same plane
Which planet is called 'red planet'?
Mars
Jupiter
Mercury
Venus
The difference between day and night increases as one moves
From equator to poles
From poles to equator
From tropics to equator
From plains to mountains
Lunar eclipse means
Direction or path of the Moon
The Moon comes between the Sun and the Earth
The Earth comes in between the sun and the Moon and the centres of all the three come on the same straight line
The average angle made by a line drawn from the Moon to the Earth
Which of the following are the Inner Planets?
1. Mercury
2. Venus
3. Earth
4. Mars
Only 1
1 and 2
1, 2 and 3
1, 2, 3 and 4
On which date is the Earth in 'aphelion'?
July-4
December-22
September-23
June-21
The Sun contains over ___of the total mass of the Solar System.
0.825
0.98
0.998
0.02
Shoemaker-Levy 9 is a
Meteors
Pole Stars
Comets
Stars
To a space traveller stationed in Moon, during the day time the lunar sky will appear
Blue
White
Black
Crimson Red
Polar circumference of the Earth is
40000 km
4000 km
50000 km
5000 km
The permanent tilt of the Earth's axis and the revolution of the Earth in its orbit together cause
Day and night
Varying lengths of day and night at different times of the year
Differences in time between places on different meridians
The deflection of winds
Which of the following is not an astronomical object?
Pulsar
Brittle Star
Black hole
Quasar
How much is the variation In distance between the Earth and the Sun during aphelion and perihelion?
5000000 km
500000 km
50000 km
5000 km
What is a 'synodic month'?
Moon's period of rotation on its axis with respect to the earth.
Moon's period of revolution around the earth.
Moon's period of revolution with respect to a star at infinity
Moon's period of revolution with respect to the Sun
The inclination of the earth's axis, i.e. the earth's axis is tilted at an angle from perpendicular to the orbital plane or makes an angle with the plane of the earth's orbit. What are these respective angles?
Presently the farthest planet from the Sun is _____.
Pluto
Neptune
Uranus
Venus
Arrange the Inner Planets in decreasing order of their distances from the Sun.
1. Earth
2. Mercury
3. Venus
4. Mars
5. Neptune
1, 4, 3, 2
4, 2, 1, 3
4, 1, 2, 3
4, 1, 3, 2
What do you call a narrow neck oC land that connects two larger landmasses?
Peninsula
Isthmus
Cape
Strait
A 'black hole' is a body in space which does not allow any radiation to come out. This property is due to its
Very small size
Very large size
Very high density
Very low density