Earth in Solar System

Question 1

Galaxy includes

Answer 1

5
Start Systems (gravitationally bound)
Stellar remnants
Dark matter
Dust
Interstellar gas

Question 2

Most distant Galaxy

Answer 2

GN-211

Question 3

When was GN-211 found

Answer 3

March 2016

Question 4

Name of Classification used for Galaxies

Answer 4

Hubbles classification

Question 5

What are Celestial bodies

Answer 5

sun, moon, Objects in Night Sky

Question 6

celestial bodies - types

Answer 6

1. that emit heat and light

2. that does not emit heat and light

Question 7

Asteroid belt - between which two planets

Answer 7

mars and jupiter

Question 8

whats a constillation

Answer 8

arrangement of stars/ group of stars

Question 9

how many constillations

Answer 9

officially 88

Question 10

2 major constillations

Answer 10

Ursa major and minor

Question 11

big dipper indian name

Answer 11

saptarishi mandal

Question 12

brightest star in big dipper/ saptarishi mandal

Answer 12

Alioth (tail)

Question 13

polar star

Answer 13

north star

Question 14

planets greek meaning

Answer 14

wanderers

Question 15

classification of planets

Answer 15

1. terrestrial

2. jovian

Question 16

what are terrestrial planets

Answer 16

small and rocky

Mercury, venus, earth and mars

Question 17

what are jovian planets

Answer 17

jupiter like - huge (giant planets)

jupiter, saturn, uranus, neptune

Question 18

jovian planets - density

Answer 18

low

Question 19

types of jovian planets

Answer 19

1. gas planets (jupiter & saturn)

2. ice planets (uranus & neptune)

Question 20

whats beyond neptune

Answer 20

kuiper belt

Question 21

kuiper belt earlier known as

Answer 21

oort cloud

Question 22

whats kuiper belt

Answer 22

belt of ice
similar characteristics of asteroids belt
numerous comets exist
has planet 9

Question 23

major gases, components of kuiper belt

Answer 23

ammonia, methane, water

Question 24

recent status of Pluto

Answer 24

dwarf planet/ planetoid (since exist beyond kuiper belt)

has drifted away from sun’s orbit

Question 25

another name for dwarf planet

Answer 25

planetoid

Question 26

known planetoids

Answer 26

pluto ceres (largest object in asteroid belt) eris (largest dwarf planet)

Question 27

ceres

Answer 27

largest object in asteroid belt

Question 28

eris

Answer 28

largest dwarf planet

Question 29

proper name for geoid

Answer 29

oblate spheroid

Question 30

whats oblate spheroid

Answer 30

dif in height and width (not a perfect sphere) | flatter near the poles

Question 31

ranking of earth as per size

Answer 31

5th largest

Question 32

earth layers

Answer 32

crust, mantle, core

Question 33

crust composition

Answer 33

silica, alumina, lime (in order of proportion) | 47% oxygen (silica and alumina has oxygen)

Question 34

mass of earth

Answer 34

iron 32% oxygen 30% silicon 15%

Question 35

rotation

Answer 35

spinning on the axis

Question 36

what does rotation of earth govern

Answer 36

day and night

Question 37

revolution

Answer 37

one complete round around sun

Question 38

what does revolution govern

Answer 38

seasons

Question 39

shape of earths path around sun

Answer 39

eliptical

Question 40

perihelion

Answer 40

3rd january | earth closest to sun

Question 41

aphelion

Answer 41

4th july | earth farthest from sun

Question 42

which planet has largest natural satellite in solar system

Answer 42

jupiter

Question 43

jupiters largest moon

Answer 43

ganyemede

Question 44

2nd largest moon in solar system

Answer 44

saturn | titan

Question 45

diameter of moon

Answer 45

1/4th of earth

Question 46

tidal phenomena

Answer 46

gravitational attraction between earth and moon

Question 47

moon's distance from earth

Answer 47

384400 km

Question 48

classification of months

Answer 48

1. sidereal | 2. synodic

Question 49

sidereal month

Answer 49

the time it takes the moon to orbit once around the earth with respect to the stars (approximately 27 1/4 days).

Question 50

synodic month

Answer 50

the synodic month, or lunar month, is longer than the sidereal month. wrt to sun same visual phase 29.53 days

Question 51

indias missions to moon

Answer 51

chandrayaan I and II | team indus

Question 52

whats team indus

Answer 52

unmanned spacecraft to moon | aim 2018

Question 53

asteroids

Answer 53

small rocky elements | exist bet mars and jupiter

Question 54

meteoroids

Answer 54

small particles move around sun can drop on earth when they drop - friction - flash of light

Question 55

comets

Answer 55

ice bodies move due to solar radiations and solar vent have tail tail always points away from sun

Question 56

pulsars

Answer 56

neutron star with a strong magnetic field emit electro magenetic radiations