PHYS 1404 Week 6 Lab Report | Assignment Help | Central Texas College
- Central Texas College / PHYS 1404
- 27 Apr 2021
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PHYS 1404 Week 6 Lab Report | Assignment Help | Central Texas College
Lesson 6 Lab: Cosmic Distance Ladder
The Lesson 6 Lab: Cosmic Distance Ladder introduces a
few of the primary methods used by astronomers to determine astronomical
distances. Parallax is introduced first, spectroscopic parallax, main sequence
fitting, variable stars, and supernova are all discussed. You will see how some
of these methods are used to measure the distances to nearby stars while others
are used to determine distances to very distant galaxies. In Chapter 14, we
apply these techniques to determine distances to other solar systems as we
explore the planets we find there. This lab will also show us how early
astronomers gaged the distances to planets here in our own solar system.
Getting started with Lesson 6 Lab: Cosmic Distance Ladder:
The Cosmic Distance Ladder Module consists of material on seven
different distance determination techniques. Four of the techniques have
external simulators in addition to the background pages. You are encouraged to
work through the material for each technique before moving on to the next
technique.
·
First, select the following link and work through the background
sections on Radar Ranging, Parallax, Distance Modulus, Main Sequence Fitting,
Supernova, Cepheids, and Hubble’s Law under the ‘Main Content’ section at:
Next, open the following link and familiarize yourself with the
capabilities of the simulator through experimentation:
You will also utilize the following simulators:
o
Supernova Light Fitting Curve
Simulator
o
Spectroscopic Parallax Simulator
After familiarizing yourself with the simulation interactive, follow
instructions and answer questions in the Lesson 6 - Lab Cosmic Distance Ladder Worksheet.
Note: The Lab Simulators require Flash Player which is integrated into
Windows 10 and work best with Internet Explorer (IE). To avoid technical issues
IE is recommended for running the simulations. If you try another browser you
will need to set up flash player options for that browser yourself. For
example, if you are using Chrome, go to the upper left of the URL browser
entry, select "Not Secure" then select "Allow" to give
Chrome permission to open the simulator.
Submit your Lab Worksheet
·
Submit the completed Assignment Sheet for Lab 6 by selecting the Lesson
6 Lab: Cosmic Distance Ladder link above, and select Browse My
Computer to attach your saved file. Make sure to select SUBMIT. Note: Save your
file as a .rtf file or .doc to ensure that it can be opened at any computer.
Labs do not have a time limit but are due on the due date of the lesson
posted in the Syllabus Page 2.
Simulations courtesy of Astronomy Education at the University of Nebraska-Lincoln website.
USA 
India