Compare how doubling the diameter of a mirror will affect both resolution and light grasp
What will be an ideal response?
The resolution would now be twice as sharp, but the increase in surface area, with the squaring for the area, would now detect stars four times fainter than before.
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Relative to the stars, the Moon moves about ____ eastward in the sky each night
a. 1° b. 5° c. 13° d. 27.3° e. 29.5°
A starburst galaxy gets this name because
A) it contains far more x-ray bursters than our Milky Way Galaxy. B) it has many stars bursting out of its disk toward intergalactic space. C) it is forming stars so fast that the starburst phase of life must be temporary. D) it contains so many stars that the galaxy's gravity cannot retain them in their orbits.
In a false color image,
A. colors can represent photon energies or the intensity of electromagnetic radiation. B. only one color is used. C. stars appear black and the background appears white. D. color information from optical telescopes is combined with information from a non-visible wavelength telescope to make the image.
The conversion of solar radiation into chemical energy by plants that releases oxygen is called?
What will be an ideal response?