Astronomy of the Solar System
AST 1003 Part 1
Solar System History- In the old days, ancient Greeks and other astronomers knew that the stars
existed in the universe.
Additionally, they also knew that the Moon existed as well back then, in addition, they
AST 1003 Part 11
The Next topic is the layout of the Solar System.
Well, How is the layout of the Solar System organized?
Answer: If we compare the Earth, to the Solar System, the Solar System is very wide, immense,
Note: The definition of immen
AST 1003 Part 6
Well, How do we measure the Planets of the Solar System get measured?
Answer: Well, theres a specific way in doing this.
Before we discuss how its measured, Lets look at some facts about the current solar system.
Here we go:
AST 1003 Part 7
Okay, Lets continue to gather information for the table.
The Next aspect of comparison is each planets orbital period given in Earth years, so again in
this case the Earth year=1 year.
Heres another fact- the Earths orbital period is direc
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The next topic of discussion is the mass of the planets and other Solar System Objects.
According to the data gathered in the table, The Planet Mercury has the mass of 0.055 Earth
Planet Venus has the mass of 0.82 Earth Masses , (
AST 1003 Part 9
Lets keep going by gathering information for the table.
The next topic of discussion is the number of known satellites that each object in the solar
system, and major space objects have.
Lets get started:
Here we go:
The Planet Mercury doe
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Now, Lets finish up the table for real. Weve started the table gathering information about the
planet a few documents ago.
Here we go: The 1st of the last 2 columns on this data table discusses The Average Density in
AST1003 Astronomy of the Solar System, Part 3
Solar System History, Continued
The 20th century, which began in the year 1900, brought continued and increase improvements
in optical telescopes.
What is an optical telescopes purpose?
Well, Its purpose is to
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Now, as we use the next couple chapters of the textbook, our goal is to try and get the
individual /persons/audience reading this book to understand, in depth and get details about how
each of the planets compares with its own and what eac
AST 1003 Part 4
Solar System History, Continued.
The Later half of the 20th century ( typically defined as the years starting with the year 1950 and
beyond, brought and opened the doors for an entirely new area/avenue for space exploring/
AST 1003 Astronomy of the Solar System , Part 2 How did the origins of the solar system start? Well, People in society back then were viewing the solar system content, remained for the most/majority of the part, unchanged from the time period of the ancie
How do stars evolve on the HR diagram? Chose and describe of an object along one of the following:
In 1905, Danish astronomer Einar Hertzsprung, and independently American astronomer Henry Norris
Russell, noticed that the luminosity of stars decreased fro