Exploring Our Solar System
The Universe and Our Galaxies
The Universe and Our Galaxies
Examples of Elliptical (Messier 87 ) and Spiral Galaxies (NGC 3559)
Examples of Elliptical (Messier 87 ) and Spiral Galaxies (NGC 3559)
Edwin Hubble was one of the first people to actually realise what a galaxy is, the measurement of the “Hubble Tuning Fork” Classification scheme shows how round or rightly wound their “arms” are.
E0 means that an elliptical galaxy is extremely round, whilst E7 is flat. However not all galaxies can be classified in this manner as there are several irregular shapes usually caused by 2 different galaxies having collided or are being influenced by the other’s gravitational force.
Edwin Hubble was one of the first people to actually realise what a galaxy is, the measurement of the “Hubble Tuning Fork” Classification scheme shows how round or rightly wound their “arms” are.
E0 means that an elliptical galaxy is extremely round, whilst E7 is flat. However not all galaxies can be classified in this manner as there are several irregular shapes usually caused by 2 different galaxies having collided or are being influenced by the other’s gravitational force.
The Milky Way is approximately 100,000 LY in diameter and the stars we see could be light years away. The closest to Earth of course being the Sun, the next being Proxima Centauri, 4.2 LY away.
The Milky Way, as with two thirds of known galaxies, is spiral shaped with the central point causing the immense gravitational force required to pull such an immense amount of gas, stars and dust being a black hole. As before, most galaxies are formed in a spiral shape and can contain 10 million to 10 trillion stars, and the cloud like shapes within the galaxies are caused by condensed dust and rock being pulled in by the black hole’s gravitational force. Even though most are spiral shaped, the rest of the majority are elliptical, with the rare tooth pick or ring shaped galaxies. The classification of galaxies was
The Universe and Our Galaxies
Examples of Elliptical (Messier 87 ) and Spiral Galaxies (NGC 3559)
Examples of Elliptical (Messier 87 ) and Spiral Galaxies (NGC 3559)
Edwin Hubble was one of the first people to actually realise what a galaxy is, the measurement of the “Hubble Tuning Fork” Classification scheme shows how round or rightly wound their “arms” are.
E0 means that an elliptical galaxy is extremely round, whilst E7 is flat. However not all galaxies can be classified in this manner as there are several irregular shapes usually caused by 2 different galaxies having collided or are being influenced by the other’s gravitational force.
Edwin Hubble was one of the first people to actually realise what a galaxy is, the measurement of the “Hubble Tuning Fork” Classification scheme shows how round or rightly wound their “arms” are.
E0 means that an elliptical galaxy is extremely round, whilst E7 is flat. However not all galaxies can be classified in this manner as there are several irregular shapes usually caused by 2 different galaxies having collided or are being influenced by the other’s gravitational force.
The Milky Way is approximately 100,000 LY in diameter and the stars we see could be light years away. The closest to Earth of course being the Sun, the next being Proxima Centauri, 4.2 LY away.
The Milky Way, as with two thirds of known galaxies, is spiral shaped with the central point causing the immense gravitational force required to pull such an immense amount of gas, stars and dust being a black hole. As before, most galaxies are formed in a spiral shape and can contain 10 million to 10 trillion stars, and the cloud like shapes within the galaxies are caused by condensed dust and rock being pulled in by the black hole’s gravitational force. Even though most are spiral shaped, the rest of the majority are elliptical, with the rare tooth pick or ring shaped galaxies. The classification of galaxies was