Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 4, Problem 1LTL
To determine
The reason why the building is not showing any parallax, whether it is an example for parallax, the method by which the parallax can be increased.
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Question A1
Use a diagram to explain what is meant by the parallax angle, p, for a star observed twice from
Earth, with a 6-month interval between each observation. Hence define the parsec, and calculate
its value in astronomical units and metres. The star Betelgeuse is observed to have a parallax
angle p = 4.5 x 10-³ arcseconds. State the distance of Betelgeuse in units of parsecs and light
years.
On Earth, the parallax angle measured for the star Procyon is 0.29 arcseconds. If you were to measure Procyon's parallax angle from Venus, what would the parallax angle be? (Note: Earth's orbital radius is larger than Venus's orbital
radius.)
A. more than 0.29 arcseconds
B. 0.29 arcseconds
C. less than 0.29 arcseconds
D.zero arcseconds (no parallax)
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- Ursa Minor contains the pole star, Polaris, and the asterism known as the Little Dipper. From most locations in the Northern Hemisphere, all of the stars in Ursa Minor are circumpolar. Does that mean these stars are also above the horizon during the day? Explain.arrow_forwardWhat is the distance (in meters) of an object that has an angular diameter of 100 arcseconds and a linear diameter of 50 meters? How do I set up this equation and solve. Also, is it possible to solve or check my answer with the TI-30XS calculator?arrow_forward5arrow_forward
- please help with this astronomy physics questionarrow_forwardWhen you say "sub-word parallax," what do you mean?arrow_forwardcan you elaborate more? how did we get that its in the y direction? and what if its different? how do we recognize the direction in all cases if possible? also how did we get -E/c?arrow_forward
- CCSF Parallax Experiment 1. Two images were taken in front of the Science Building. There are two identical reference positions marked in both photos for alignment. a. Select two objects with a noticeable parallax from the photos. i, One of them can be the Francis of Assis statue b. Measure parallactic shifts in degrees, you will need to i. calculate a scale factor, and then compare the two photos, estimating the number of degrees each object shifted refer to the Application of Parallax page in the Parallax Module for the details ii. iii. c. Calculate their distances from the baseline 2. Formula to use for these calculations is as follow: Baseline AB (m) Parallactic Shift (degrees) 3. Technical Information About the Photos D(m) = 57.3 x Item Baseline AB Field of View of the Photo Image Dimension Plate-scale 4. Data Table and Results The definition of the terms in the table refer to the Application of Parallax page in the Parallax Module. Object Name Francis Assis Statue Right light…arrow_forwardCan you please answer the following questions The star Sirius has an apparent magnitude of -1.46 and appears 95-times brighter compared tothe more distant star Tau Ceti, which has an absolute magnitude of 5.69.(a) Explain the terms apparent magnitude, absolute magnitude and bolometric magnitude.(b) Calculate the apparent magnitude of the star Tau Ceti.(c) Find the distance between the Earth and Tau Ceti.arrow_forwardReview Conceptual Example 3 for information pertinent to this problem. When we look at a particular star, we are seeing it as it was 307 years ago. How far away from us (in meters) is the star? Take a year to be 365.25 days.arrow_forward
- 1.)How long do you have to wait for a star to undergo its maximum parallactic displacement? 2.) How can the observation of stellar parallaxes in general be used as evidence against a geocentric view of the cosmos?arrow_forwardplease help me answer these questionsarrow_forwardThe angle between two lines drawn from a point on Earth to two opposite sides of the Moon make an angle of 0.5 degrees. If you do the same thing for the two opposite ends of Andromeda (as shown above), you find an angle of 5 degrees. Let's assume Andromeda and the Moon are equally far away from our location on Earth (of course that's wrong, but how are we supposed to know?) - then how much larger would the diameter of Andromeda be (as indicated by the arrows at the top), compared to the diameter of the Moon? Pick the answer that's closest to what you get under this hypothetical assumption: A. Equal Diameter B. Twice C. Five times D. Ten timesarrow_forward
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