Multiple Choice
One of the three astronomical objects that were first detected at radio wavelengths by Grote Reber in the 1930s and 1940s was:
A) Cygnus
B) the Moon.
C) Jupiter.
D) the Sun.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q1: Why is it that, when we observe
Q2: The energy output of a bright quasar
Q3: Quasars, blazars, and double radio sources may
Q4: In the "unified model" of active galaxies,
Q5: The Sun's luminosity would have to increase
Q7: The spectrum of a blazar shows:<br>A)absorption lines
Q8: The time of variation in the brightness
Q9: In order to appear superluminal, a few
Q10: What is a dead quasar flare?<br>A)the last
Q11: Among galaxies with active galactic nuclei, Seyfert