Microscopes are not used in astronomy, as they are designed to magnify small objects, while astronomical instruments are used to study celestial objects.

The primary function of a telescope is to magnify distant objects, making them appear closer and larger.

Infrared telescopes are specifically designed to detect and study infrared radiation emitted by celestial objects.

Spectrographs are used to analyze the chemical composition of stars and other celestial objects by splitting their light into its component wavelengths.

The Giant Metrewave Radio Telescope (GMRT) is located near Pune, Maharashtra, and is known for its array of radio telescopes used to study radio waves from space.

The Aryabhatta Research Institute of Observational Sciences (ARIES) Telescope, located in Nainital, Uttarakhand, is the largest optical telescope in India.

A heliometer is a specialized astronomical instrument designed specifically to study the Sun and its features.

Astrographs are specialized telescopes designed to take wide-field photographs of the night sky, capturing large areas of the sky in a single exposure.

The Vainu Bappu Observatory, located in Kavalur, Tamil Nadu, is known for its solar telescope, which is used to study the Sun and its phenomena.

Photometers are instruments used to measure the brightness or intensity of light from celestial objects.

Polarimeters are instruments used to measure the polarization of light, which can provide information about the magnetic fields and other properties of celestial objects.

Coronagraphs are specialized telescopes designed to study the Sun's corona, the outermost layer of the Sun's atmosphere.

The Indian Institute of Astrophysics (IIA), located in Bengaluru, Karnataka, is known for its gamma-ray telescope, which is used to study gamma rays from space.

Fabry-Perot interferometers are used to study the structure and dynamics of gases in celestial objects by analyzing the interference patterns of light.

Cosmic Microwave Background (CMB) Experiments are specialized instruments designed to study the cosmic microwave background radiation, which is the leftover radiation from the Big Bang.