Total Questions: 50
Therefore, the nearest point of the satellite to the earth is called perigee, while the farthest point is called apogee.
Revolution is the movement of the Earth around the Sun in a fixed elliptical orbit.
One complete revolution takes approximately 365ΒΌ days (365 days, 6 hours, 9 minutes).
To adjust this, we have a leap year every 4 years (with 366 days).
A meteoroid is a small rocky or metallic body traveling through space.
Smaller than asteroids, usually ranging from grain-sized to a few meters wide.
Asteroids are found between Mars and Jupiter.
Meteoroids mostly come from asteroids or comets.
They travel at high speeds (11β72 km/s).
Most meteors burn up in the atmosphere due to friction.
Meteor showers occur when Earth passes through debris left by comets (e.g., Perseids, Leonids).
Largest known meteorite: Hoba Meteorite in Namibia (~60 tons).
A constellation is a group of stars that form a recognizable pattern in the sky.
These patterns often represent mythological figures, animals, or objects.
According to the International Astronomical Union, there are a total of 88 constellations in the sky.
The seven stars representing Saptarishi are
1. Vashistha
2. Marichi
3. Pulastya
4. Pulaha
5. Atri
6. Angiras
7. Kratu