Which is the binary system, and what is the type, in the above figure?
a. Alcor A and B, spectroscopic
b. Alcor and Mizar, visual binary
c. Mizar A and B, visual binary
d. None of the other choices are correct.
C
You might also like to view...
An atom which has 4 protons and 6 neutrons will be electrically neutral if it contains
A) 4 electrons. B) 6 electrons. C) 10 electrons. D) at least 1 electron.
If atmospheric refraction did not occur, how would the apparent time of sunrise and sunset be changed?
a. Both would be later. b. Both would be earlier. c. Sunrise would be later and sunset earlier. d. Sunrise would be earlier and sunset later.
Magma viscosity depends on the ______________ content and the temperature of the magma
Fill in the blank(s) with correct word
What is the difference between 103.5 and 102.24?
A) 1 B) 1.3 C) 1.26 D) 1.260 E) 1.2600