Integrated Science (looseleaf)
7th Edition
ISBN: 9781259350436
Author: Tillery
Publisher: MCG
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Chapter 12, Problem 3PEB
To determine
The comparison between the brightness of Spica to the brightness of Vega.
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2.
If Vega is apparent magnitude zero, and Deneb first magnitude, then
Vega must be 2.5× hotter than Deneb.
Vega is 2.5× brighter than Deneb.
Vega is about 100× brighter than Deneb.
Deneb is one magnitude brighter than Vega.
Deneb must be a main sequence star, and Vega a giant.
The parallax of star Canopus is 0.033 and its apparent visual magnitude is -0.72. What is its absolute visual magnitude?
The red supergiant star in Orion is called Betelgeuse, and its distance is 130 pc. What is the parallax of this star?
Chapter 12 Solutions
Integrated Science (looseleaf)
Ch. 12.1 - Stars twinkle and planets do not twinkle because...Ch. 12.6 - Prob. 2SCCh. 12.6 - Prob. 3SCCh. 12.6 - Prob. 4SCCh. 12.6 - Prob. 5SCCh. 12.6 - Prob. 6SCCh. 12.6 - Prob. 7SCCh. 12.6 - Prob. 8SCCh. 12.7 - Prob. 9SCCh. 12.7 - Prob. 10SC
Ch. 12.7 - Prob. 11SCCh. 12.7 - Prob. 12SCCh. 12 - What is a light-year, and how is it defined?Ch. 12 - Prob. 2CQCh. 12 - Prob. 3CQCh. 12 - What is the Hertzsprung-Russell diagram?Ch. 12 - Prob. 5CQCh. 12 - Prob. 6CQCh. 12 - Prob. 7CQCh. 12 - Prob. 8CQCh. 12 - Prob. 9CQCh. 12 - Prob. 10CQCh. 12 - Prob. 11CQCh. 12 - Prob. 12CQCh. 12 - Prob. 13CQCh. 12 - Prob. 14CQCh. 12 - Prob. 15CQCh. 12 - Prob. 16CQCh. 12 - Prob. 17CQCh. 12 - Prob. 18CQCh. 12 - Prob. 19CQCh. 12 - Prob. 20CQCh. 12 - Prob. 21CQCh. 12 - Prob. 22CQCh. 12 - Analyze when apparent magnitude is a better scale...Ch. 12 - Prob. 24CQCh. 12 - Prob. 25CQCh. 12 - Prob. 1PEACh. 12 - Prob. 2PEACh. 12 - Prob. 3PEACh. 12 - Prob. 4PEACh. 12 - Prob. 5PEACh. 12 - Prob. 6PEACh. 12 - Prob. 7PEACh. 12 - Prob. 8PEACh. 12 - Prob. 9PEACh. 12 - Prob. 10PEACh. 12 - Prob. 11PEACh. 12 - Prob. 1PEBCh. 12 - Prob. 2PEBCh. 12 - Prob. 3PEBCh. 12 - Prob. 4PEBCh. 12 - Prob. 5PEBCh. 12 - Prob. 6PEBCh. 12 - Prob. 7PEBCh. 12 - Prob. 8PEBCh. 12 - Prob. 9PEBCh. 12 - Prob. 10PEBCh. 12 - Prob. 11PEB
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- The apparent visual magnitude of Arcturus is m = -0.04 mag. Use the method of spectroscopic parallax to calculate the approximate distance to Arcturus in units of pc.arrow_forwardthe parallax angle of a star to be 0.002 arc-seconds. what would the distance be to this star?arrow_forwardA star has an apparent magnitude of 10.0 and an absolute magnitude of 2.5. How far away is it? Group of answer choicesarrow_forward
- In a laboratory, the Balmer-beta spectral line of hydrogen has a wavelength of 486.1 nm. If the line appears in a star's spectrum at 486.7 nm, what is the star's radial velocity (in km/s)? (Enter the magnitude.) km/sarrow_forwardWhich of the following stars are bright and very cool. A. White dwarfs B. Our sun C. Giantsarrow_forwardFind the distance in parsecs to van maanen's star, a nearby white dwarf, which has an annual parallax of 0.232 arcsec.arrow_forward
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