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A planet is detected at 0.5" from its star. The star is 10 parsecs away. How many AU from its star is the planet?
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- Consider the attached light curve for a transiting planet observed by the Kepler mission. If the host star is identical to the sun, what is the radius of this planet? Give your answer in terms of the radius of Jupiter. Brightness of Star Residual Flux 0.99 0.98 0.97 0.006 0.002 0.000 -8-881 -0.06 -0.04 -0.02 0.00 Time (days) → 0.02 0.04 0.06Pluto is considered a binary dwarf planet system with its companion Charon. Pluto has a mass of 1.303 x 1022 kg and mean radius of 1188.3 km. Charon has a mass of 1.586 x 1021 kg and mean radius of 606 km. The binary 5. system has a semi-major axis with the sun of 39.482 AU and there is an average distance of 19,591.4 km between the two dwarf planets. What is the system's center of mass with respect to Pluto, and why does this mean that Charon is a binary system and not a moon?The International Space Station is about 90 meters across and about 380 kilometers away. One night it appears to be the same angular size as Jupiter. Jupiter is 143,000 km in size. Use S = r x a to figure out how far away Jupiter is in AU. Note 1 AU = 1.5 x 108 km
- What would be the angular diameter (in arc seconds) of a planet with diameter 8.5 x 105 km and orbital distance from it's star of 175 x 108 km as seen from a planet with. orbital distance from the same star of 70 x 107 km as seen from their closest approach?Solve the following problem: Two stars, named A and B, each with a mass equal to the Sun's mass are in orbit around each other. If the distance between the two stars is 1.0 AU. What is the period of their orbit? Describe each step in solving the problem:A certain binary system consists of two stars that have equal masses and revolve in circular orbits around a fixed point half-way between them. If the orbital velocity of each star is v=186 km/s and the orbital period of each is 11.3 days, calculate the mass M of each star. Give your answer in units of the solar mass, 1.99×1030 kg (e.g. if each planet's mass is 3.98×1030 kg, you would answer "2.00").
- In 2004, astronomers reported the discovery of a large Jupiter-sized planet orbiting very close to the star HD179949. The orbit was just 6.4x106 km (about 9 less than the orbit of Mercury) and the planet takes 3.1 days to make one circular orbit. The mass of the star is Answerx_______1030 kg. (Give the number before the exponent.)An asteroid is 3 AUaway fromthe Sun when it is observed from the Earth at opposition. How large does the asteroid have to be in order to occult a Sun-like Star at a distanced= 10pc? [Hint:θ=s/r.]SnowT is an exoplanet orbiting star 27 Kood. If the planet’s orbital period is 3.75 days and 27 Kood's constant is 2.9X10^-19 s^2/m^3, what is SnowT orbital radius?
- Convert 1.39 x 10^9 kilograms to Jupiter Masses, MJ. The mass of Jupiter is known as MJ = 1.898×1027 kg. Mplanet = _________________________ MJ *The accepted mass of this planet HD 209458b is Mplanet = 0.69 MJ. Check your answer for correctness.What is the apparent magnitude of the sun as seen from Saturn about 10 AU away? Appear to magnitude of Saturn =(a) The distance to a star is approximately 7.80 1018 m. If this star were to burn out today, in how many years would we see it disappear? years (b) How long does it take for sunlight to reach Saturn?