G beca signi.... CENGAGE MINDTAP Chapter 3: Sample Assignment Assignment: Chapter 3: Sample Assignment 10. Questions Phases and Eclipses Problem 13a 11. 12. 13. 14. 15. 16. 17. 18. girion em..... 19. esc O a. About O During solar eclipses, large prominences are often seen extending as much as 5 are minutes from the edge (limb) of the Sun's disk. How far is that in kilometers? In Earth diameters? (The Sun's average distance is about 1.5 x 108 km; the linear diameter of Earth is about 12,700 km; the small-angle formula is angular diameter (in arc seconds) 2.06 x 105 linear diameter .) distance. O Dmma fight.... Ob. About 61 km. About 0.0048 diameters of Earth. 1 OC. About 1.3 x 107 km. About 1000 diameters of Earth. 2.2 x 10 km. About 17 diameters of Earth. d. About 3600 km. About 0.29 diameters of Earth. Ow Icon Key Phases and Eclipses Problem 13a 2 F2 3 Login to A... 80 F3 4 888 FA % 5 F5 V6 MacBook Air 6 A F6 & 7 F7 00 * 8 DII FB 9 DD
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
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