1740M_Assignment1_W24_TEMPLATE (2)

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Humber College *

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1750

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Astronomy

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Apr 3, 2024

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NATS 1740M W2024 Assignment 1 Observing the night sky Due: Friday Feb 9, 4pm Upload to e-class Type your answers Full Name: Student Number: Date: My signature confirms that the work I am handing in is my own, and has not been copied, sourced from elsewhere, or otherwise falsified: _____________________________________ 1

Part 1 . Multiple Observations of the Moon in a Single Night or Day (5 marks) Location Diagram: Sketch position of Moon several times in a single night/day. Label time of each observation. Indicate phase of Moon. Date of Observation: ____________ 2

Part 1 Questions : ( type all of your answers ) (5 marks) 1. How did the size of the Moon change over the series of observations made in a single night? If there was a change, explain why. 2. How did the phase of the Moon change over the series of observations made in a single night? If there was a change, explain why. 3. How did the position of the Moon change over the series of observations made in a single night? 4. Explain why the Moon changed its position. 5. Label the Moon’s position in its orbit for your observation in the following diagram: 3

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Part 2: Observations of the Moon at the same time and location, several nights/days in a row (10 marks) Location Diagram: Sketch position and phase of Moon observed at the same time over several nights or days. Label each observation with same number from Record of Observations. 4

Part 3: Record of Observations Obs # Date Time (indicate am/pm) DRAWING OF MOON PHASE Comments (weather, clarity of Moon’s features, other planets or objects of interest in sky, etc.) 1 2 3 4 5 6 7 8 5

Part 2 Q uestions: (5 marks) 1. Describe how the phase and any other aspect of the Moon’s appearance changed over the course of the 4-5 night (or day) period, where the observations were made at approximately the same time. 2. How did the position of the Moon change on your location diagram over the course of the 4- 5 night/day period, where the Moon was observed at the same time? 3. Why did the Moon change its position in the sky over the 4-5 night/day period, where the Moon was observed at the same time? 4. Give the full explanation for why the Moon changes its phase throughout its cycle. Include a diagram in your answer. If you use a reference outside of class notes, give the reference. 6

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Part 3: Observation of the Moon in the morning sky (3 marks) Location Diagram: note the date, time, phase and orientation of the Moon 7

Part 3 Q uestions: (2 marks) 1. Label the Moon’s position in its orbit for your morning observation in the following diagram: 2. State the phase of the Moon seen for this observation (i.e. waxing or waning, gibbous or crescent). 8

Part 4: Observations of Jupiter (5 marks) Part 4 Location Diagram: Sketch 3 (or more) positions of Jupiter relative to a few bright stars. (Note 1 – you can take photographs instead.) Note the date and time for each observation. (Note 2 – these observations can but do not have to be made be made on consecutive days.) 9

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Part 4 Q uestions: (1 mark) 1. How does the position of Jupiter change relative to the background stars in your observations (if at all)? 10

Part 5: Observations of the constellation Orion (4 marks) Insert a drawing or photo (which you took) of Orion. Label Betelgeuse, Rigel and the Orion nebula on Orion. 11

Part 6: Free choice (5 marks) Include photos and/or Location Diagram drawings of any object of your choice. Label the name(s) of your object, and the date(s) and time(s) of your observation(s). Make at least 1 observation, but feel free to do as many as you like. 12

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1740M_Assignment1_W24_TEMPLATE (2)

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