What is the exoplanet doing when the light we detect from the star begins to increase from the least amount of light to the greatest amount of light?
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What is the exoplanet doing when the light we detect from the star begins to increase from the least amount of light to the greatest amount of light?
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- Why is almost every solid surface in our solar system scarred by craters?The Perseverance rover landed on Mars in early 2021. During travel to Mars, thespacecraft carrying the rover cruised at a speed of nearly 25,000 miles per hour. Atthis speed, how long would it have taken for the spacecraft to travel 0.5 au? Giveyour answer in daysIf a protostellar disk is 240 AU in radius and the disk plus the forming star together contain 9 solar masses, what is the orbital speed at the outer edge of the disk in kilometers per second?
- describe in detail why and in what situation you use mgh=1/2kx^2, and the question (why it is looking like this?)The orbital speed of the material in the solar nebula at Pluto's average distance from the Sun was about 5km/s. What was the orbital speed of this material when it was 40,000 AU from the Sun? (hint: use conversation of angular momentum) 1 AU= 1.496 x 108 kmUF, s In 2014, astronomers discovered 22 new KBOS, among those the following three: 2014 with a period of 331.1 years; 2014 TT, with a period of 280.8 years; 2014 QM with a period of 315.2 years. Given that information and knowing that Neptune's period is 85 441 164.8 years, which of those objects - if any- are likely part of the Plutino family of KBOS? Show your work that lead you to your conclusion.
- Considering what you learned from the solar nebula theory, how likely do you think it is to find habitable planets in other solar systems? Visit NASA’s Kepler mission to learn more about this search, and write a ½ page summary on the mission.Let's assume it took Voyager 1 13 years to reach the edge of solar system at a distance of 40 AU. How fast was voyager 1 traveling in Km/hr?At rest carbon emits a spectral line at 364.0 nm. If this line is observed at 410.0 nm from exoplanet host Helvetio's, how fast is Helvitios moving toward or away from us in km/s?
- the nearest star to our sun is alpha centauri, which is about 4.4 light-years away. assume that it too has an Oort cloud about 1.6 light years in diameter. Show that there is enough space between us andnit to fit 1.75 solar systems.If there was a planet orbiting a first generation star, which planet in our solar system would it resemble most? Would it be likely for such a planet to have life?In a globular cluster, astronomers (someday) discover a star with the same mass as our Sun, but consisting entirely of hydrogen and helium. Is this star a good place to point our SETI antennas and search for radio signals from an advanced civilization? Group of answer choices No, because such a star (and any planets around it) would not have the heavier elements (carbon, nitrogen, oxygen, etc.) that we believe are necessary to start life as we know it. Yes, because globular clusters are among the closest star clusters to us, so that they would be easy to search for radio signals. Yes, because we have already found radio signals from another civilization living near a star in a globular cluster. No, because such a star would most likely not have a stable (main-sequence) stage that is long enough for a technological civilization to develop. Yes, because such a star is probably old and a technological civilization will have had a long time to evolve and develop there.