Define the following terms
a) Shooting stars
b) Orbit
c) Planet
d) Constellations
e) Solar system
f) Photosphere
Answers
a) a small, rapidly moving meteor burning up on entering the earth's atmosphere.
b) An orbit is the path that an object takes in space when it goes around a star, a planet, or a moon.
c) a celestial body moving in an elliptical orbit round a star.
d) form conspicuous configurations of objects or creatures in the sky.
e) The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly.
f)The photosphere is a star's outer shell from which light is radiated.
Answer:
- What is meant by a shooting star?
A shooting star is really a small piece of rock or dust that hits Earth's atmosphere from space. It moves so fast that it heats up and glows as it moves through the atmosphere. Shooting stars are actually what astronomers call meteors. Most meteors burn up in the atmosphere before they reach the ground.
- define orbit
the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.
- define planet
A planet is a large celestial body that revolves around the sun in fixed orbits. Planets do not have any light of their own but reflect the light of the sun. Planets also do not twinkle like stars because they are much closer to us.
- define constellations
A constellation is a group of stars that appears to form a pattern or picture like Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are easily recognizable patterns that help people orient themselves using the night sky.
- define solar system
The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, the dwarf planets and small Solar System bodies.
- define photosphere
- The photosphere is the visible "surface" of the Sun. ... The Sun is a giant ball of plasma (electrified gas), so it doesn't have a distinct, solid surface like Earth.