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Which type of reflector telescope would be the easiest to construct, and why?
How do radio interferometers greatly enhance resolution in radio wavelengths?
Explain how the eccentricity describes the shape of an ellipse.
The planet which shows us the widest range of surface temperatures between day and
night is ________.
Fast-moving electrons, moving close to c, in a strong magnetic field generate ________
radiation.
Quasar ________ lines are an indication of intervening cooler gas.
When and why do neap tides occur? How much tidal variation is noted?
Contrast observation of ionized and neutral hydrogen in space.
Relate Seyferts to spirals.
Must we see both spectral lines splitting to find a spectroscopic binary?
What do long period comets tells us about the structure of the Oort Cloud?
Briefly describe the order of creation of normal matter in the Big Bang.
Harlow Shapley found the visible disk of the Galaxy is about ________ kpc across.
Of all the planets known in antiquity, ________ is the hardest to observe visually.
What is the length of the sidereal month, and how is it determined?
