nats1740m-UCA3-instructions
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School
York University *
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Course
1740
Subject
Astronomy
Date
Jan 9, 2024
Type
Pages
1
Uploaded by PresidentGrousePerson764
UCA3
Due: Feb 17, 2023
Instructions: Homework Assignment #3
NATS 1740M - Astronomy
Due: Friday Feb 17, 2023 by 11:59pm
Open an empty document in any word-processing software (Word, Pages, Google Docs, etc.),
and write your name, student number, and ‘Unit Completion Assignment #3’ at the very top.
Using what you know from lectures, readings, and the AAS WorldWide Telescope (WWT;
https://worldwidetelescope.org/webclient/), put your answers to the questions below in that
document. Submit your assignment to the UCA3 submission link provided.
—
Question 1
On WWT. Using the
Search
menu locate
one
of the 5 naked-eye visible planets (Mercury,
Venus, Mars, Jupiter, Saturn).
A)
[1 marks] Zoom in on your chosen planet such that it fills the screen. Take a screen capture
of the planet, and include it here as your answer to this question.
B)
[2 marks] What constellation is your planet currently in? How long will it take before your
planet leaves that constellation?
C)
[1 marks] Again, from the 5 naked-eye visible planets, choose the opposite type of planet
for this question that you chose for A) (ie, if you chose a rocky planet for A), choose a
gaseous planet for C). Using the search menu locate your planet on the sky. Zoom in on
your chosen planet such that it fills the screen. Take a screen capture of the planet, and
include it here as your answer to this question.
D)
[2 marks] What constellation is your planet from C) currently in? How long will it take before
your planet leaves that constellation?
E)
[5 marks] Compare and contrast the two planets you chose from the perspective of: type of
planet, size, composition, structure, etc. You may wish to lean on the readings for this
answer.
Question 2
A)
[5 marks] Describe the Nebular Theory of planetary system formation in detail, starting from
a large cloud of gas and dust. Include a description of how the Nebular Theory predicts the
type and location in our solar system of your planets from 1A) and 1C).
On WWT, using the
Search
menu, locate evidence beyond our solar system that supports the
Nebular Theory as the process by which planetary systems form. Do this by locating a
protoplanetary disk
. Type ‘ALMA’ into the
Search
menu. Choose one of the protoplanetary
disks in that image list (hint: see slide 37 of Part 2 - The Nebular Theory).
B)
[2 mark] Take a screen capture of the chosen image from the ALMA image list, and include
it here as your answer to this question. Which constellation is it in?
C)
[2 marks] How does the image you chose in 2B) support the Nebular Theory?
NATS1740M Astronomy
© Jesse Rogerson
York University
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