Q: You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your…
A: * The distance appears to you in spaceship will be
Q: Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 • 1011…
A: Write the given values with suitable variables. M=8×1011 MS=8×10111.989×1030 kg=1.59×1042 kgr=6×104…
Q: Olbers's paradox is solved in part by the fact that the universe is neither infinitely large nor…
A: Olber's paradox is solved by fact that universe is expanding.
Q: Which type of fusion reaction supports stars for the longest time? Group of answer choices hydrogen…
A: The hydrogen to helium fusion reaction supports stars for the longest time. Because, the force of…
Q: Neutron Star Angular Size. If Earth's Moon were replaced by a typical neutron star, what would the…
A:
Q: Suppose that the Sun runs out of nuclear fuel and suddenly collapses to form a white dwarf star. The…
A:
Q: Suppose you observe a star orbiting the Galatic center at a speed of 1000 km/s in a circular orbit…
A:
Q: How come the Z-34 plant has 3 times more gravity than the earth when it is smaller than earth
A:
Q: Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy.…
A: Given:
Q: Which elements are created in stellar nucleosynthesis? (Select all that apply) - oxygen - helium…
A: Among the elements listed, hydrogen and helium were created during big band and the rest of the…
Q: 1. Calculate the acceleration of gravity on A) the Earth. B) the Moon. C) a neutron star.
A:
Q: Disk population stars have I. circular orbits in the plane of the galaxy II. randomly…
A:
Q: During the formation of stars smaller masses may also form and be attracted by a larger mass to…
A: →Planets are born from the clouds of gas and dust that orbit new stars.
Q: The presence of an unseen planet orbiting a distant star can sometimes be inferred from the motion…
A:
Q: "Star Formation and Lifetimes" pg. 120, question 7 A star with twice the mass of the Sun would have…
A: In stars higher mass leads to higher compression. Which results higher Central density and…
Q: Now, rank the same objects by increasing temperature. For spherical objects, use the surface…
A: Intercloud gas: The gases other than intersteller gases present in space are known as intercloud…
Q: Determine the surface gravity on a neutron star. Assume the star has a mass 50% bigger than the…
A: mass of Sun = 1.98 * 1030 Kg mass of neutron star = mass of sun + 50%mass of sun = 1.5 * 1.98 *…
Q: Why do bigger stars burn out quicker(have a shorter lifespan
A:
Q: (II) Use Table 1–3 to estimate the total number of protons or neutrons in (a) a bacterium, (b) a DNA…
A:
Q: You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your…
A: Given data : mass of proton, m = 1.673 × 10-27 kg density of interstellar medium, d = 1 hydrogen…
Q: Rank these astronomical objects based on their density, from smallest to largest. A) the…
A: The given astronomical objects are a) the singularity of a black hole b) a main sequence star c) a…
Q: Put these in order from smallest to largest Universe Galaxy Solar system Distance between earth and…
A: Here we arrange these things on the bases of their size in increasing order.
Q: If a star converted every bit of its mass into energy the conversion efficiency would be 100%.…
A:
Q: Black hole candidates are conspicuous by their continuous or flickering emission of a. infrared…
A: Introduction: A black hole is a region where gravity is so strongest that nothing can even particles…
Q: _______ is the hypothetical form of energy that produces a force that opposes gravity and is thought…
A:
Q: timate the temperature of the planet (in K), if it is in thermal equilibrium with the star it…
A:
Q: Object Mass Radius Person 70 kg 1E-3 km Моon 7E22 kg 1.7E3 km Sun 2E30 kg. 7E5 km Earth 6E24 kg 6E3…
A: (i) Person : g=GMR2 & VEsc=2GMR (formula for calculation) g=6.67×10-11×7012 g=4.67×10-9m/s2…
Q: Radio telescopes are an essential tool for modern astrophysics. They played a crucial role in…
A:
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: 2. Over several months an astronomer observes an exoplanet orbiting a distant star at a distance of…
A: We have, T=2πRvv=GMstarR T=3.875 years =3.875×365×24×60×60 seconds =122202000 secondsR=5.934 AU…
Q: Why Is It Not Easy To Quantize Gravity?
A: It is not easy to quantize gravity because constants involved in gravitational interaction such as…
Q: How many of the atoms in Question (3 is the pic i sent) can fit within a spherical planet with a…
A:
Q: You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your…
A: The given values are,
Q: From the lists below, choose the one that best ranks the following astronomical objects from closest…
A: The distance of the Jupiter from the Earth,
Q: A planet is located at m. A star is located at m.
A: Given ,position vectors of star(r2) and planet (r1). To find position of planet w.r.t star &…
Q: You observe two randomly chosen stars 10,000 lightyears from Earth. One is in the disk of the Milky…
A: In this question we have to observe two randomly chosen stars 10,000 lightyears from Earth. One is…
Q: You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your…
A: Given data : mass of proton, m = 1.673 × 10-27 kg density of interstellar medium, d = 1 hydrogen…
Q: The tidal force is a differential force: dF/dr, which is the difference between the force at one…
A:
Q: A planet is 8 astronomical units away from the star CELT and moving on an orbit of period 5 years.…
A: Given, Ra=8 AU Ta=5 years Tb=16 years We need to calculate Rb=?
Q: Astronomers are always seeking to build bigger, more powerful telescopes, which will allow them to…
A: Astronomers are always seeking to build bigger, more powerful telescopes, which will allow them to…
Q: Would would happen to Spacetime at the surface of the Sun if you kept the volume the same but…
A: Answer:- The spacetime curvature would increase with increasing density.
Q: A. Halo stars formed in a different way from disk stars. B. Planets around stars are known to be…
A: Yes the answer in my opinion the answer is option c.
Q: Which of the following scientists have contributions relating to intelligent alien life-forms?…
A: Cannon and Hubble : Observational cosmologists. Drake and Sagan : Contributions relating to…
Q: The Local Bubble is:
A: Option —A
Q: The star Rho' Cancri is 57 light-years from the earth and has a mass 0.85 times that of our sun. A…
A:
Q: The youngest stars are a. extreme population I. b. intermediate population I. c. extreme…
A: Given : To identify the youngest stars
Why is it difficult to detect planets orbiting other stars?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- An exoplanetary system has two known planets. Planet X orbits in 290 days and Planet Y orbits in 145 days. Which planet is closest to its host star? If the star has the same mass as the Sun, what is the semi-major axis of the orbits for Planets X and Y?Why is it so hard to see planets around other stars and so easy to see them around our own?Doppler shift lets you see a star move back and forth. look larger and smaller. look bluer and redder-but the shift is extremely small and is visible only if is moving towards and away from you, so it only works from certain viewing angles. O look brighter and dimmer. O The Doppler shift brightens up a dim planet so you can see it.
- One way that astronomers detect planets outside of our solar system (called exoplanets) is commonly referred to as the radial velocity method. This relies on the __________ ___________ to cause shifts in the spectral lines of stars as the stars perform tiny orbits around the center of mass of the host star and its orbiting planets. Those tiny orbits cause the stars to periodically (and therefore predictably) move closer to and further away from our solar system. Luckily, this method only relies on the motion of the star; its physical distance from us does not impact the resulting shifts.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").Why were giant planets close to their stars the first ones to be discovered? Why has the same technique not been used yet to discover giant planets at the distance of Saturn?
- The light a planet receives from the Sun (per square meter of planet surface) decreases with the square of the distance from the Sun. So a planet that is twice as far from the Sun as Earth receives (1/2)2=0.25 times (25%) as much light and a planet that is three times as far from the Sun receives (1/3)2=0.11 times (11%) as much light. How much light is received by the moons of Jupiter and Saturn (compared to Earth), worlds which orbit 5.2 and 9.5 times farther from the Sun than Earth?Pluto 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?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 0.06
- the co te on Pictor. The 270 TOI System TOI 270 c Earth 365-day orbit $1 AU from Sun Habitable 5.7-day orbit 0.05 AU $2.4 Earth radii Largest in system 59 F, 15 C 300 F, 150 C TOI 270 TOI 270 d M3-type dwarf star TOI 270 b $11.4-day orbit 0.07 AU 3.4-day orbit 2.1 Earth radii 0.03 AU Temperate 1.25 Earth radii Likely rocky 150 F. 67 C 490 F. 254 C Figure taken from https://exoplanets.nasa.gov/news/1593/tess-scores-hat-trick-with-3-new-worlds/ What makes the TOI-270 system particularly interesting is that the three exoplanets detected this far (there may be more) have sizes comparable to the Earth. Compare the orbital period of TOI 270 c and TOI 270 d. For every revolution that TOI 270 d makes around the host star TOI 270, how many revolutions does TOI 270 c make?Which of these views cannot be used when trying to detect exoplanets using the radial velocity method? XYZ all of these can be observed using the radial velocity method none of these can be observed using the radial velocity method? X Y Z all of these can be observed using the radial velocity method none of these can be observed using the radial velocity method Figure X to Earth Figure Y to Earth Figure Z to Earth Which of the systems above could not be detected using the transit method?Time From this light curve, we can deduce that... O the star has a high mass exoplanet orbiting it O the star has an exoplanet orbiting it that has an eccentric orbit O the star has an exoplanet orbiting it that has an eccentric orbit O the star has an exoplanet that is not on the same orbital plane as the star L Brightness