# Pre-Lesson Homework

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Published 2022-07-30

# 1.1 Pre-Lesson Homework

# 1.1.1 Terminologies

There are many terminologies peculiar to the field of astronomy. It is useful to get yourself familiar with them before going deep into the science. Do an online search to understand the terms below and write a short sentence for each to explain its meaning.

Terminology	Meaning
Fixed stars
Planet
Galaxy
Milky way
Cluster
Constellation
Gravity
Celestial sphere
Local sky
Zenith
Azimuth

# 1.1.2 Stellarium

Download the programme Stellarium

Launch Stellarium.
Move the mouse to the lower left corner of the screen to reveal the status bar.
Click on the Location Window icon at the top of the status bar on the left to set your location to Singapore (Google to find the Longitude and Latitude of Singapore and ensure that Stellarium is correct).
Below the Location Window icon, click on the Date/Time Window to the set date and time to your current (or preferred) time and date.
In the Sky and viewing option window (or press "F4"), set the light pollution to 7.
Move your screen to a portion of the night sky you like. Finally, go to the Configuration window (or press "F2"), then click on "Save Settings" to keep all these changes.
Click and drag by mouse to tour around the sky. You may also use the arrow keys. Zoom in and out by scrolling on the mouse wheel, or by pressing Ctrl + Up or Down arrows.

# 1.1.3 Telescope

Read the SPS telescope manual (for Nexstar 6SE).