Why does the present method of finding extrasolar planets not favor finding solar systems like ours?
What will be an ideal response?
Doppler shifts are greatest for rapidly moving stars, where their planets are moving very close to them and with periods of much less than a year.
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Briefly explain extrasolar planets
What will be an ideal response?
Which of the following is true of double-lobed radio sources?
A) Their radio lobes are associated with interacting galaxies. B) They are less active than normal galaxies. C) Their nuclei are relatively cooler than their peripheries. D) Their radio lobes are located at the end of their spiral arms.
One way to measure and compare the strength of the radio signal at various places in the sky is to produce a(n) _______________ in which each color marks areas of similar radio intensity
Fill in the blank(s) with correct word
Pluto's composition is most similar to that of a
A) terrestrial planet. B) comet. C) star. D) jovian planet.