The five parts of a comet are:
1.Nucleus-middle part which is composed of gasses, dirt, and ice
2.Dust tail- composes of dust
3. Ion tail- different color, heating up and exciting gasses
4. Coma- the gasses around the nucleus. They cause the shine
5. Hydrogen cloud- the gasses that are released and left behind
Now a little bit about the two comets Hale-Bopp and Halley.
-It is the most famous comet in history
-It proved Edmund Halley's math was correct becuase the comet came back to Earth
-It originates from the Oort Cloud
-It is now currently located in the Kuiper Belt
-The revolution is 76 Earth years (it last came in 1986 and it will come back again in 2061)
-It is the same age as the Sun (4.5 billion years old)
-It was discovered in July 23, 1995
-Two people discovered it independently Alan Hale and Thomas Bopp
-It is 4.5 billion years old
-The diameter of the nucleus is 40-80 kilometers
-Its revolution around the Sun takes 2,392 Earth years
Here is a video of Hale-Bopp in the sky
Here is a video of the revolution pattern of the comet Halley
After talking about the comets, we continued our forum and concluded it. We talked about Mars, Jupiter, and Neptune. Not having much time left, we quickly reviewed the names of the celestial bodies and their symbols'. We were told that there is a review session on Wednesday during lunch if you want to come.
REMEMBER, TOMMOROW WE HAVE A CELESTIAL BODIES OPEN NOTE TEST! REMEMBER TO COME PREPARED! The test will be timed so organize your stuff well.
The next scribe is German.