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Transcript
SES4U: Earth and Space Science, Grade 12, University Preparation
Unit 1: Science of the Universe
Activity 5: Big Bang and Galaxies
Galaxy Hunt
(adapted from NASA’s Hidden Lives of Galaxies)
1. Complete the following chart describing the properties of the different
galaxies. (/15)
Spiral/Barred
Spiral
S, SB
Shape and
Structural
Properties
Stellar Content
Gas and Dust
Star Formation
Stellar Motion
Elliptical
E
Irregular
Irr
2. The galaxy we live in is called the Milky Way. Using the Internet or other
resources, research answers to the following questions.
a) What is the diameter of the Milky Way? (/1)
b) Draw and label a diagram (arms) of the Milky Way. Locate the sun on the
diagram. (/5)
c) How old is the Milky Way? (/1)
d) Name the closest galaxy. How far away is it? (/1)
3. Classify the following galaxies. (/10)
Galaxy
Andromeda
M84, NG4374
NGC2997
NGC5383
Large
Magellanic
Image
Scheme
Spiral
Classification
Sb
NGC4622
M83
Centaurus A
M59, NGC4621
NGC1365
4. The following Hubble Deep Field image illustrates the vast number of
galaxies located in the universe. Draw lines to and identify the shape of 10
different galaxies in the image: (/10)
Credit: Robert Williams and the Hubble Deep Field Team