M 31 example essay topic

289 words
M 13's astronomical name is Hercules Cluster. It is one of the most prominent and best known globular clusters. Visible with binoculars in the constellation of Hercules. M 13 is a colossal home to over 100,000 stars, span over 150 light years across, lies over 20,000 light years distant, and is over 12 billions years old.

M 27's astronomical name is Dumbbell Nebula. It is a planetary nebula. It is the brightest planetary nebulae on the sky, and it can be seen in the constellation Vulpecula with binoculars. It takes light about 1000 years to reach us from M 27. M 31's astronomical name is Andromeda Galaxy. It is the nearest major galaxy to our own Milk Way Galaxy...

The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it... M 31 is so distant it takes about 2 millions years for light to reach us. The location o When I magnify M 13 until the field of view is about 1 degree I saw many grey dots creating a circle. Some grey dots are out of place.

After I magnify M 27 until the field of view is 1.5 degree, I saw a deep blue color circle, in the center I see some bright spot on the circle. Then, I magnify M 31 until the field of view is 5 degree. I saw there is a big flat disk. I saw the color of the disk is blue and purple color. When I looked in the center of the disk, I see there is a bright color circle in the center of the disk.