Question

. Choose the best description of the radial velocity method of locating exoplanets. This method works well for detecting planets orbiting in close proximity to a star, so the planet can more readily observe passing in front of the star. Planets are timed as they orbit distant stars. The size of the planet can be judged by the time duration it takes to transit a star. The orbiting planet causes the star to wobble causing it to appear bluer or more red depending on which direction it moves.

Answer 1

Answer:

Any planet is an extremely faint light source compared to its parent star. For example, a star like the Sun is about a billion times as bright as the reflected light from any of the planets orbiting it. In addition to the intrinsic difficulty of detecting such a faint light source, the light from the parent star causes a glare that washes it out. For those reasons, very few of the exoplanets reported as of April 2014 have been observed directly, with even fewer being resolved from their host star.

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Answer 2

Answer:

Any planet is an extremely faint light source compared to its parent star. For example, a star like the Sun is about a billion times as bright as the reflected light from any of the planets orbiting it. In addition to the intrinsic difficulty of detecting such a faint light source, the light from the parent star causes a glare that washes it out. For those reasons, very few of the exoplanets reported as of April 2014 have been observed directly, with even fewer being resolved from their host star.