Concept explainers
The eclipse of Jupiter’s moon observed from Earth.
Answer to Problem 1Q
The eclipse of Jupiter’s moons will be seen to occur several minutes early on Earth.
Explanation of Solution
As the orbit of Earth is smaller in radius as compared to Jupiter’s, the time period of Earth to complete one revolution is shorter than the time period of Jupiter. Thus, Earth will move faster as compared to Jupiter. Also, the motion of Earth is in the opposite position.
The relative motion of Earth and Jupiter results in decreasing the distance between Earth and Jupiter by some light years. This will result as the eclipse of Jupiter’s moons will be seen to occur several minutes early on Earth.
Conclusion:
Thus, the eclipse of Jupiter’s moons will be seen to occur several minutes early on Earth.
Want to see more full solutions like this?
Chapter 5 Solutions
Universe: Stars And Galaxies
- This photo shows the annular eclipse of May 30, 1984. How is it different from the annular eclipse shown in Figure 3-10c? Figure 310 (a) Because the angular diameter of the Moon and the Sun vary slightly, the disk of the Moon is sometimes too small to cover the disk of the Sun. (b) That means the umbra of the Moon does not reach Earth, and the eclipse is annular, meaning a ring ("annulus") of the Sun's disk can be seen around the Moon. (c) In this photograph of an annular eclipse in 1994, the dark disk of the Moon is almost exactly centered on the bright disk of the Sun.arrow_forwardIn 2004, the planet Venus passed between Earth and the Sun. What kind of eclipse, if any, occurred?arrow_forwardThe nearest star to our sun is Proxima Centauri, at a distance of 4.3 light-years from the Sun. A light-year is the distance that light travels in one year (365 days). How far away, in kilometers, is Proxima Centauri from the Sun?Express your answer using two significant figures.arrow_forward
- A total eclipse of the Sun was visible from Canada on July 10, 1972. When did an eclipse occur next with the same EarthMoonSun geometry? From what part of Earth was it total?arrow_forwardConsider a star at a distance of 100 light years from the Earth and is moving relative to the Earth at a constant velocity of 70000 km/hr perpendicular to its line of sight from the Earth. What is the change of its angular position on our sky when viewed by us now and by the ancient Egyptian 6000 years ago? Ignore all other effect, e.g., the axial precession of the Earth. 1. (A) 0.24 arcsecond (В) 13 arcminutes (C) 0.5 degree (D) 2.6 degrees (E) 5.0 degreesarrow_forwardThe answer is incorrect, would there be another way for figuring this out? Thank you.arrow_forward
- Earth is about 150 million kilometers from the Sun (1 Astronomical Unit, or AU), and the apparent brightness of the Sun in our sky is about 1300 watts/m^2. Using these two facts and the inverse square law for light, determine the apparent brightness that we would measure for the Sun if we were located at the following positions. a) At the orbit of Venus (67 million km from the Sun). b) At the orbit of Jupiter (780 million km from the Sun). c) At the mean distance of Pluto (40 Astronomical Units).arrow_forwarda) Why can many more people witness a total lunar eclipse than a total solar eclipse? Why are some solar eclipses total, and others annular?arrow_forwardMercury's orbit ranges from 46 to 70 million km from the Sun, while Earth orbits at about 150 million km. a. The Sun has a 30-arc-minute diameter viewed from Earth; what range of sizes does it have when viewed from Mercury? When Mercury is 46 million km from the Sun, the Sun has a diameter of When Mercury is 70 million km from the Sun, the Sun has a diameter of arc-minutes. arc-minutes. b. At Mercury's orbital extremes, how many times stronger is the Sun's radiation on Mercury than on Earth? At 46 million km, the Sun's radiation is times stronger than on Earth. At 70 million km, the Sun's radiation is times stronger than on Earth.arrow_forward
- Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningStars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning