Astronomy around us

17 branches of astronomy

There are two main types of astronomy, observational and theoretical astronomy.
Observational astronomy uses telescopes and cameras to observe or look at stars, galaxies and other astronomical objects.
Theoretical astronomy explains what we see.
It predicts what might happen..

Astronomy branches

In the 16th century, Nicolaus Copernicus assigned the central position to the Sun (see Copernican system), ushering in the age of modern astronomy..

Branches of astronomy

In Astronomy through the Ages, Sir Robert Wilson tells the story of how our understanding of the universe has evolved through history — of how the sedate and stable star field of ancient times has been replaced by the vast and explosive universe we know today..

How far can astronomers see into space?

We're looking back in time the further out we go because it takes time for light to travel to us.
So the furthest out we can see is about 46.5 billion light years away, which is crazy, but it also means you can look back into the past and try to figure out how the universe formed, which again, is what cosmologists do..

How far is our universe?

The comoving distance from Earth to the edge of the observable universe is about 14.26 gigaparsecs (46.5 billion light-years or 4.40\xd710²⁶ m) in any direction.
The observable universe is thus a sphere with a diameter of about 28.5 gigaparsecs (93 billion light-years or 8.8\xd710²⁶ m)..

How stars affect our life?

The reason why stars are so important is because they have helped humans navigate through Earth .
When it was dark these stars would light up the sky giving people light .
In addition stars are very important because they make life on Earth..

Types of astronomy

Here are just a few of the most famous astronomers throughout history that shaped the world of stars and planets.

Types of astronomy

We've scoped out seven of the best cities for budding astronomers, so pack your bags — cos it's time to reach for the stars

Types of astronomy

By studying the cosmos beyond our own planet, we can understand where we came from, where we are going, and how physics works under conditions which are impossible to recreate on Earth..

Types of astronomy

Optical astronomy is the study of celestial objects using telescopes that observe visible light.
Infrared light can be detected outside of the Earth's atmosphere, so by space-based observatories like the Hubble Space Telescope and the James Webb Space Telescope._{Jul 25, 2023}.

What is the value of astronomy in today's society?

The fruits of scientific and technological development in astronomy, especially in areas such as optics and electronics, have become essential to our day-to-day life, with applications such as personal computers, communication satellites, mobile phones, Global Positioning Systems, solar panels and Magnetic Resonance .

What time is used in astronomy?

The basic unit of astronomical time is the day—either the solar day (reckoned by the Sun) or the sidereal day (reckoned by the stars).
Apparent solar time is based on the position of the Sun in the sky, and mean solar time is based on the average value of a solar day during the year..

Who is involved in astronomy?

Astronomers study planets, stars, and other celestial bodies.
They use ground-based equipment, such as optical telescopes, and space-based equipment, such as the Hubble Space Telescope.
Some astronomers study distant galaxies and phenomena such as black holes and neutron stars..

Who is the famous astronomy?

Galileo Galilei1564-1642 ItalianJohannes Kepler1571-1630 GermanJohn Babtist Riccioli1598-1671 ItalianGiovanni Cassini1625-1712 Italian-born French.

Why do some people like astronomy?

For some, astronomy provides a sense of wonder and awe, while others see it as a way to uncover the secrets of the cosmos.
No matter what your motivation - whether it comes from artistic wonder or a wish to understand humanity better - astronomy has the power to change your perspective on everyday life..