explain the terms :
a) Ursa major
b) star
c) constellation
Answers
Answer:
a.a constellation that is the most conspicuous of the northern constellations, is situated near the north pole of the heavens, and contains the stars forming the Big Dipper two of which are in a line indicating the direction of the North Star. — called also Great Bear.
b A star is an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity. ... Many other stars are visible to the naked eye at night, but due to their immense distance from Earth they appear as fixed points of light in the sky.
c A constellation is a group of stars which make up imaginary outline or pattern in the night sky (the celestial sphere). ... When seen, the group of stars seem to make a pattern. The word constellation comes from Latin: con-, meaning together and stella- meaning stars.
Explanation:
Explanation:
a)Ursa Major is a constellation in the northern sky, whose associated mythology likely dates back into prehistory.
Its Latin name means "greater she-bear," referring to and contrasting it with nearby Ursa Minor, the lesser bear.
b)Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores. Aside from our sun, the dots of light we see in the sky are all light-years from Earth.
c)Constellation, in astronomy, any of certain groupings of stars that were imagined—at least by those who named them—to form conspicuous configurations of objects or creatures in the sky. Constellations are useful in tracking artificial satellites and in assisting astronomers and navigators to locate certain stars.
