FIRST GROUP BY Astri Oktaviani Dwi Nur Apipa

FIRST GROUP BY : Astri Oktaviani Dwi Nur Apipa Rahayu Kencana A.

What is Astronomy? ? Astronomy is the scientific study of stars, planets and other things in space.

Definition of astronomy: � Astronomy is the study of the sun, moon, stars, planets, comets, galaxies, gas, dust and other non-Earthly bodies and phenomena. In curriculum for K-4 students, NASA defines astronomy as simple “the study of stars, planets and space. ” Astronomy and astrology were historically associated, but astrology is not a science and is no longer recognized as having anything to do with astronomy.

Historically � Historically, astronomy has focused on observations of heavenly bodies. It is a close cousin to astrophysics. Succinctly put, astrophysics involves the study of the physics of astronomy and concentrates on the behavior, properties, and motion of objects out there. However, modern astronomy includes many elements of the motions and characteristics of these bodies, and the two terms are often used interchangeably today.

What's the difference between astronomy and astrology? Astronomy is a science that studies everything outside of the earth's atmosphere, such as planets, stars, asteroids, galaxies; and the properties and relationships of those celestial bodies. Astronomers base their studies on research and observation. Astrology on the other hand, is the belief that the positioning of the stars and planets affect the way events occur on earth. If you're interested in the solar system and the planets, other celestial objects like asteroids and comets, other galaxies and the rest of the universe, what makes up space, and the possibility of alien life or space travel, Astronomy is the field you're considering.

Our galaxy is called the Milky Way Our WHOLE solar system is located right about here

Advantages of Astronomy 1. Timepiece 2. Signpost 3. Indicator season 4. Research

Technical Term of Astronomy � � � Altitut : the height of an object Azimut : Meridian Horizon Zenit

Mercury is the smallest planet in the Solar System and the one closest to the Sun, with an orbital period of about 88 Earth days, which is much faster than any other planet in the Solar System.

Venus is the second planet from the Sun, orbiting it every 224. 7 Earth days. It has no natural satellite.

Earth is the third planet from the Sun and is the largest of the terrestrial planets. The Earth is the only planet in our solar system not to be named after a Greek or Roman deity. The Earth was formed approximately 4. 54 billion years ago and is the only known planet to support life

Mars is the fourth planet from the Sun and the second smallest planet in the Solar System, after Mercury. Named after the Roman god of war, it is often referred to as the "Red Planet" because the iron oxide prevalent on its surface gives it a reddish appearance.

Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a giant planet with a mass onethousandth that of the Sun, but two and a half times that of all the other planets in the Solar System combined. Jupiter is a gas giant, along with Saturn. (Uranus and Neptune are ice giants. )

Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius about nine times that of Earth.

Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourthlargest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have different bulk chemical composition from that of the larger gas giants Jupiter and Saturn.

Neptune is the eighth and farthest known planett from the Sun in the Solar System. It is the fourthlargest planet by diameter and the third-largest by mass.

Pluto was known as the smallest planet in the solar system and the ninth planet from the sun. Today, Pluto is called a “dwarf planet. ” A dwarf planet orbits the sun just like other planets, but it is smaller. A dwarf planet is so small it cannot clear other objects out of its path.

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