What kind of celestial object is Neowise C/2020 F3 and what makes it special?
Q: The hottest exoplanet known orbits its host star at a distance of just 0.04 AU. The host star is…
A: Given data: r=0.04 AU T=104 k and R=1.5 rsun To find : No greenhouse temperature (Teff) We have to…
Q: What is the temperature for a very reflective, nearly white planet with a reflectivity of 99.3% at a…
A: Given data, Albedo α=99.3% Distance=1 AU
Q: If a prostellar disk is 260 au in radius and the disk plus the forming star together contain 7 solar…
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Q: Use the small angle equation to find the angular diameter of Sgr A* if it has a diameter of 13 AU…
A: The small-angle equation is used in astronomy to calculate the distance between Earth and other…
Q: What is the wavelength shift (delta) (h) of a exoplanetery system at a wavelength of X angstroms if…
A: The Doppler shift is a change in frequency or wavelength of a wave in relation to an observer who is…
Q: why must astronomers use infrared telescopes to observe the motions of stars around Sgr A*? The…
A: The star Sgr A* lies in the centre of the galaxy. The amount of dust and debris is relatively more…
Q: Given that an astronomical unit is 1.5x10° kilometers and a light-year is about 1013 kilometers, how…
A: The distance between Sun and Earth is defined as the Astronomical Unit (AU). It was created by…
Q: Which one of the mechanism below can NOT be responsible for providing intrinsic luminosity for…
A: Intrinsic luminosity is defined as the luminosity an object will have if there is no loss of…
Q: Use this light curve of a star with a transiting exoplanet to answer the following. If the exoplanet…
A: Required to find the average orbital distance.
Q: Imagine that an object is moving around the Sun. What will be the orbital period of the object in…
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Q: Explain the tidal hypothesis.
A: The tidal hypothesis is one of the modern hypotheses of the origin of the earth and the solar…
Q: GM hat is the difference in orbital velocity between Saturn's two coorbital satellites if the…
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Q: If Exoplanets A and B are orbiting their host stars at similar distances and we know that the host…
A: We know from Planck law for blackbody the radiation: The spectral radiance : B(λ)=2hc2λ5ehcλkT-1 So,
Q: what is the smallest planet that could be detected around a 0.4 Rsun M dwarf star?
A: transit depth is the ratio of surface area of planet and the star transit depth = πRp2πRs2 where Rp…
Q: If Sally could drive a Jetson's flying car at a constant speed of 390.0 km/hr across oceans and…
A: Given data: Distance (d) = 390.0 km/hr Distance (d) = 8.4 AU Required: Time (t)
Q: Which of these views cannot be used when trying to detect exoplanets using the radial velocity…
A: Let's go through each of the three cases and explain why the views cannot be used for detecting…
Q: An asteroid is observed to be on a superior orbit with a synodic period of 466.6 days. What are the…
A: Express the equation connecting synodic period and sidereal period. 1Psid=1P0-1Psyn -----1 Here, P0…
Q: What appears to be the most common size of exoplanets? Jupiter size Neptune size…
A: Exoplanets are found outside of solar system. Their radii is 1.4 to 2.8 times the radius of earth.
Q: 1. When a contracting ball of hot gas spins into a disk shape, it cools. Why?
A: When a contracting ball of hot gas spins into a disk shape it cools because the surface area of disk…
Q: According to the nebular theory, which planet is most likely to be gaseous rather than rocky?
A: Rocky planet are mercury Venus and earth and mars are wrong. A gas giant is a large planet…
Q: Please give answer. Describe, with the aid of suitable diagrams, the basic structure and components…
A: ATLAS detector at the LHC. We have to give information about structure and components of the ATLAS…
Q: Need asap.. If you increase the semi-major axis of an exoplanet's orbit, how does this affect the…
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Q: We observe a star that is dstar away. How much extinction would there need to be (i.e., what must 7…
A: A star is observed that is at a distance away.We need to find the value of the extinction required…
Q: Why is Neptune a deep blue color?
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Q: Name 4 major satellite configurations that constitute the GNSS.
A: The 4 major satellite configurations that constitute the GNSS are: BeiDou / BDS (China) Galileo…
Q: An exoplanetary system has two known planets. Planet X orbits in 290 days and Planet Y orbits in 145…
A: Given data *The time period of the Planet X is Tx = 290 days *The time period of the Planet Y is Ty…
Q: What percentage of the mass of the solar nebula consisted of elements other than hydrogen and…
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Q: linear diameter What is the angular diameter of Saturn (in arc seconds) as seen from Earth when the…
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Q: What is the temperature for an almost completely absorbing dark planet at 1 AU and with a…
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Q: Nearly all planets that astronomers have found orbiting other stars have been giant planets with…
A: Yes it is proves that our solar system is unique. The number of planets we have and their distance…
Q: Imagine that in the future, scientists plan on colonizing planets that orbit other stars. Based on…
A: SOlution:
Q: 1) How massive would Earth had been if it had accreted hydrogen compounds in addition to the sme…
A: It is required to calculate how massive would Earth had been if it had accreted hydrogen compounds…
Q: A halo CME is observed moving away from the Sun. Should we expect this CME to impact Earth?…
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Q: Mulchatna is an exoplanet orbiting star 12 Altair. If the planet’s orbital period is 4.25 days and…
A: Write the expression for Kepler’s third law. Here, T represents the orbital period, k represents…
Q: What is the orbital velocity and period of a ring particle at the outer edge of Saturn's A ring?…
A: It is given that: The radius of the edge of the A ring, rrSaturn =136500 km The formula for orbital…
Q: Using a 8-m reflector telescope on Mars, what is the maximum distance we could measure using stellar…
A: we need to tell us what is the maximum distance we could measure using stellar parallax.
What kind of celestial object is Neowise C/2020 F3 and what makes it special?
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