E-lab 33 magnitudes(1) (2) - Protected View Saved to this PC shabreah woods T Fi
ID: 305014 • Letter: E
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E-lab 33 magnitudes(1) (2) - Protected View Saved to this PC shabreah woods T File Home Insert Draw Design Layout References Mailings Review View Help Tell me what you want to do 1? PROTECTED VIEW Be careful files from the Internet can contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 6) The diagram below shows the relative distances of three stars, A, B, and C. Assume star B is 10 parsecs from earth, while star A is closer than 10 parsecs and star C further than 10 parsecs. Complete parts a-f of this question based on the diagram. Earth Star C tar ar (at 10 pc) a. Indicate what would happen to the present apparent brightness of star A and C if they were at a distance of 10 parsecs (pc) that is, is the star brighter or fainter Apparent brightness of star A at 10 pc. Apparent brightness of star C at 10 pc. b. Indicate below what would happen to the present apparent magnitude of star A and C, if they were at a distance of 10 parsecs; that is, indicate whether the m becomes more positive or bigger, or more negative or smaller Apparent magnitude (m) of star A at 10 pc. Apparent magnitude (m) of star C at 10 pc. c. What is the name given to the apparent magnitude of a star at a distance of 10 parsecs? Page & ol 14 366 words + 100% 11:52 AM Type here to search Astronomy.. tegory IIl.. Inbox Vcs... E-lab 33 ma.... Ve. -b 33 ma.. H 82/2018Explanation / Answer
Answer:
a) Apparent brightness of Star A at 10 pc= fainter
Apparent brightness of Star C at 10 pc = brighter
Explanation = Star A is at a distance of less than 10pc away from the Earth and Star C is at a distance of more than 10pc away from Earth. So at a distance of 10parsecs, Star A would move away from the Earth and its apparent brightness would decrease and it will become fainter while star C would move more closer towards the Earth and its apparent brightness would increase and it will become brighter.
b)Apparent magnitude of Star A = More positive
Apparent magnitude of Star C = More negative
c) The name given to the apparent magnitude of a star at a distance of 10 parsecs is Absolute magnitude.
d) Star B
Explanation : Star B is at a distance of 10 parsecs away from Earth. So its apparent magnitude is equal to its absolute magnitude.
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