In the solar spectrum, presence of D-line of the Fraunhofer lines prove that ________.

The famous Halley's Comet appears every _______ years.

Consider the following statements: (1) The rings of Jupiter are made of dust. (2) Sirius is the brightest star in the night sky.

Which of the given statements is /are correct?

Consider the following statements:

1. The solar eclipse repeats the same pattern every 18 years 11 days 8 hours. This cycle is called 'Saros cycle'.
2. Milky Way galaxy is a spherical shaped.

Which of the given statements is /are correct?

The distance between two consecutive meridians near the equator is

Which of the following is the largest moon of the Neptune?

Consider the following statements:

1. Ceres is the largest asteroid, which was discovered in the asteriod belt.
2. Sirius B was the first white dwarf to be observed.

Which of the given statements is/are correct?

Consider the following statements:

1. Meteor showers result from dust trails left by Asteroids.
2. Galileo Galilei was the first astronomer to use an optical telescope.

Which of the given statements is/are correct?

Consider the following statements:

1. Uttarayan is a period, which comes after summer solstice.

2. In a year sunrises in the east only on two days i.e 21^st March and 23^rd September, otherwise it rises either north of east or south of east.

Which of the above statements is/are correct?

Which of the following was the first planet discovered with the help of a telescope?

Ceres lies between

NGRI stands for

What is the approximate distance of Proxima Centauri from Earth?

Consider the following statements:

1. The largest asteroid found in the solar system is Ceres.
2. Asteroids occupy the space between Mars and Saturn.

Which of the given statements is/are correct?

Consider the following statements:

1. Alpha Centauri is a double star system.
2. Solar eclipses always occur on new moon.

Which of the given statements is/are correct?