Loose Leaf For Explorations: Introduction To Astronomy
9th Edition
ISBN: 9781260432145
Author: Thomas T Arny, Stephen E Schneider Professor
Publisher: McGraw-Hill Education
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Question
Chapter 13, Problem 1TY
To determine
The distance to the star.
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Which star in the table below has the greatest diameter?
Star Name
d (parsecs)
Parallax (seconds of arc)
Spectral Type
65 Tau
0.025
A7 IV
HR 4621
B2 IV
$$ \alpha $$ Pic
20
A7 V
58 Ori
0.005
M2 I
HR 2491
2.5
A1 V
a.
65 Tau
b.
HR 4621
c.
$$ \alpha $$ Pic
d.
58 Ori
e.
HR 2491
Which star in the table below is the closest to Earth?
Star Name
d (parsecs)
Parallax (seconds of arc)
Spectral Type
$$ \delta $$ Cen
0.026
B2 IV
HR 4607
0.039
G8 III
HR 4758
20
G0 V
HR 39801
0.005
M2 I
9 CMa
2.5
A1 V
a.
$$ \delta $$ Cen
b.
HR 4607
c.
HR 4758
d.
HD 39801
e.
9 CMa
Which star in the table below has the least surface temperature?
Star Name
d (parsecs)
Parallax (seconds of arc)
Spectral Type
$$ \delta $$ Cen
0.026
B2 IV
HR 4607
0.039
G8 III
HR 4758
20
G0 V
HR 39801
0.005
M2 I
9 CMa
2.5
A1 V
a.
$$ \delta $$ Cen
b.
HR 4607
c.
HR 4758
d.
HD 39801
e.
9 CMa
Chapter 13 Solutions
Loose Leaf For Explorations: Introduction To Astronomy
Ch. 13 - Prob. 1QFRCh. 13 - Prob. 2QFRCh. 13 - Prob. 3QFRCh. 13 - Prob. 4QFRCh. 13 - Prob. 5QFRCh. 13 - Prob. 6QFRCh. 13 - Prob. 7QFRCh. 13 - Prob. 8QFRCh. 13 - Prob. 9QFRCh. 13 - Prob. 10QFR
Ch. 13 - Prob. 11QFRCh. 13 - Prob. 12QFRCh. 13 - Prob. 13QFRCh. 13 - Prob. 14QFRCh. 13 - Prob. 15QFRCh. 13 - Prob. 16QFRCh. 13 - Prob. 17QFRCh. 13 - Prob. 18QFRCh. 13 - Prob. 19QFRCh. 13 - Prob. 20QFRCh. 13 - Prob. 1TQCh. 13 - Would it be easier to measure a star's parallax...Ch. 13 - Prob. 3TQCh. 13 - Prob. 4TQCh. 13 - Prob. 5TQCh. 13 - Prob. 6TQCh. 13 - Prob. 7TQCh. 13 - Prob. 8TQCh. 13 - Prob. 9TQCh. 13 - Prob. 10TQCh. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - Prob. 3PCh. 13 - Prob. 5PCh. 13 - Prob. 6PCh. 13 - Prob. 7PCh. 13 - Prob. 8PCh. 13 - Prob. 9PCh. 13 - Prob. 10PCh. 13 - Prob. 11PCh. 13 - Prob. 12PCh. 13 - Prob. 13PCh. 13 - Prob. 14PCh. 13 - Prob. 15PCh. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Prob. 1TYCh. 13 - Prob. 2TYCh. 13 - Prob. 3TYCh. 13 - Prob. 4TYCh. 13 - Prob. 5TYCh. 13 - Prob. 6TYCh. 13 - Prob. 7TYCh. 13 - Prob. 8TYCh. 13 - Prob. 9TY
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- The star Firefly is located 3.0 pc away. If it had an absolute magnitude of 13.0, which value below is reasonable for its apparent magnitude? A. 10.4 В. 13.3 ОС. -26.7 OD. 15.0arrow_forwardWhich star in the table of stellar data has the largest parallax? Star distance (pc) parallax angle (")| m M A 100 2 В 0.1 4 C 25 0.040 6 D 0.025 А. А О В. В O C.C O D.Darrow_forwardthe parallax angle of a star to be 0.002 arc-seconds. what would the distance be to this star?arrow_forward
- A star has a parallax of 0.01 arc seconds. How far is it? a. 0.01 parsecs b. 0.1 parsecs c. 10 parsecs d. 100 parsecsarrow_forwardThe apparent visual magnitude of star (Rigel) is 0.12. Use the method of spectroscopic parallax to calculate the approximate distance to Rigel in units of parsecs. The absolute visual magnitude of Rigel is −6.8.arrow_forwardA star has a parallax of 0.2 seconds of arc. What is the distance of the star?arrow_forward
- Given that a pair of stars are found to be orbiting each other with a period of 11.86 [yrs] and a separation of 5.2 [AU], what is the binary star system's total mass (i.e.- M1+M2) expressed in units of our Sun's mass? a) 61.7 b) 39.5 c) .0162 d) 1 e) 1.0 x 10^30arrow_forwardUse 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 × 10−3 arcseconds. State the distance of Betelgeuse in units of parsecs and light years.arrow_forwardThe star Firefly is located 3.0 pc away. If it had an absolute magnitude of 13.0, which value below is reasonable for its apparent magnitude? O A. 10.4 ОВ. 13.3 ОС. -26.7 O D. 15.0arrow_forward
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