C onstellation This Photo by Unknown Author is licensed under CC BY
T he name of the star that always points to the north.
P olaris This Photo by Unknown Author is licensed under CC BY
T his constellation consists of five stars that seem to form the letter W.
C assiopeia This Photo by Unknown Author is licensed under CC BY
I t is made up of seven stars and four of which constitute the bowl and the other three resembles a handle.
B ig Dipper This Photo by Unknown Author is licensed under CC BY-NC
I t consists of bright stars, three of which form its belt popularly called Tatlong Maria.
O rion This Photo by Unknown Author is licensed under CC BY
I t shows the position or location of various constellations in the sky.
Star Map This Photo by Unknown Author is licensed under CC BY-SA
I t is part of Ursa Minor and the Small Bear.
Little Dipper This Photo by Unknown Author is licensed under CC BY-NC-ND
D escribe the following galaxies. C omnplete the table/chart. G alaxy Description M ilky Way Local Group G reat Nebula or Andromeda
M ilky Way is compose of millions of stars
L ocal Group belongs to a small group of 17 galaxies This Photo by Unknown Author is licensed under CC BY-SA
G reat Nebula or Andromeda is spiral in shape and larger than the Milky Way This Photo by Unknown Author is licensed under CC BY
A Galaxy is made up of clouds of dust, gases, and billions of stars. They appear as hazy patches of light from a great distance.
The Milky Way resembles as a thin convex lens bulging at the center. It has a diameter of about 80, 000 light years. The thickness of its center is about 10, 000 light years. This galaxy is composed of 200 billion stars.
The Solar System is about 32, 000 light years away from the center of this galaxy.
The local group belongs to a small group of 17 galaxies. The Large and Small Magellanic Clouds is the nearest neighbor of this group.
Another neighbor galaxy is the great nebula is the Andromeda Galaxy. It is about 2 million light years away from us. It is believed to be larger than the Milky Way. It is spiral in shape.
There are three major types of Galaxies that are visible even without the use of a telescope. US Astronomers Edwin P. Hubble developed a common classification system to classify the galaxies discovered. These 3 major types are the spiral, elliptical and irregular galaxies.
Spiral galaxies are made up of millions of stars. Its unique characteristics is the lens shaped nucleus at its center with arms or projections extending out. The arms follow as the central part moves. There are few stars and almost no dust or gas in between the arms. Some spiral galaxies are tightly wound while others are open. About 75 percent of all known galaxies are believed to be spiral in shape.
Elliptical Galaxies are nearly ball shaped to lens shaped. They do not have any arms. There is almost no gas and dust cloud. Studies of their brightness patterns show that most of their stars are found close to the center.
Irregular Galaxies comprises two to three percent of the total number of galaxies that Hubble classified. These are smaller and fainter compared to spiral and elliptical galaxies. They are composed of stars which are unevenly distributed. One irregular galaxy is the Large Magellanic Clouds and the other, Small Magellanic Clouds.
The quasars are farther away in space are other heavenly bodies which are much smaller but brighter than galaxies.
Draw/illustrate any of the galaxies you have learned.
Get ½ crosswise and answer the following questions. Define Galaxy? What are the three major types of galaxies that are visible even without a telescope.
A ssignment Try to know the meaning of the word “UNIVERSE”