Astronomy-Objective Related Question Answers
576. The two nearest galaxies to our milky way?
Large Magellanic cloud and small Magellanic cloud
577. The galaxy nearer to our galaxy milky way?
Andromeda Galaxy
578. Milkyway belongs to a cluster of some 24 galaxies called?
Local group
579. Energy is transferred from the Sun to Earth mainly by?
electromagnetic waves
580. The best evidence that Earth spins on its axis is provided by?
apparent shifts in the swing of a Foucault pendulum
581. Existence of galaxies beyond milky way was first demonstrated by?
Edwin Hubble
582. Galaxies are also called?
island of universe
583. Father of Indian Astronomy?
Aryabhata
584. The system of astronomy based on Heliocentre (sun centred) universe was presented by?
Copernicus
585. The astronomer who presented the system of astronomy based on a geo centric (earth centred) universe?
Ptolemy
586. The first who attempted to measure stellar distances?
James Gregory
587. The length of an Earth day is determined by the time required for approximately one?
Earth rotation
588. The apparent rising and setting of the Sun, as viewed from Earth, is caused by?
Earth’s rotation
589. The apparent daily path of the Sun changes with the seasons because?
Earth's axis is tilted
590. An inter stellar cloud of dust, hydrogen, helium and other ionized gases are called?
Pulsars
591. First pulsar was discovered by?
Jacelyn Bell
592. The pieces of rocks, which move around the sun are called?
Meteoroids
593. The tilt of the Earth on its axis is a cause of the Earth’s?
changing length of day and night
594. Compared to the distances between the planets of our solar system, the distances between stars are usually?
much greater
595. Why does the moon appear to move across the sky during the night?
Earth rotates on its axis.
596. What time of year is the sun farthest from the earth?
Summer in the Northern Hemisphere.
597. As per Microwave Anisotropy Probe (MAP) what is the exact age of the universe?
13.7 billion year after the theoretical Big Bang
598. Name the British astronomer who, told that the Universe was not limited to the solar system, but is much vaster than that?
Sir William Herschel
599. Stars whose brightness increases to 20 magnitude or more due to explosion in the star is called?
Supernovae
600. What is a star?
A star is a gaseous self-luminous body in space
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