Use the small angle equation to find the angular diameter of Sgr A* if it has a diameter of 13 AU and a distance of 8.5 kpc.
Q: Consider a disk with disk temperature T = T0(r/AU)−1 with T0 = 200K.and surface density given by Σ =…
A: The objective of this question is to find the difference between the orbital speed of the gas at 1…
Q: What is an emission nebula?
A: The space between stars and galaxies is filled with clouds of gas and dust. These clouds of gas and…
Q: Assuming Proximus B orbits Alpha Centauri C at distance equal to the distance the earth orbits the…
A: The orbital period is defined as the time taken for a planet or satellite to revolve around it's…
Q: If a prostellar disk is 260 au in radius and the disk plus the forming star together contain 7 solar…
A:
Q: Venus can be as bright as apparent magnitude -4.7 when at a distance of about 1 AU. How many times…
A: From inverse square law: Therefore, Since the brightness is directly proportional to the…
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: Q. 3: The angular velocity of rotation of a står (of mass M and radius R) at which the matter starts…
A: To find- Angular velocity=? Given- Mass of star=(M) Radius of star=R Matter starts escaping from the…
Q: What kind of celestial object is Neowise C/2020 F3 and what makes it special?
A: Comets are rocky objects made of ice rock and dust. They orbit sun and when they get closer to sun…
Q: If you stood on Earth during its formation, during which it captured about 1.4 ✕ 1011 particles per…
A: The rate of capturing particle is, dndt=1.4×1011/sn=dndtS
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: Describe each of the following nebulae and how they can be observed: HIl region Cold hydrogen gas…
A: (1) HII region (2) Cold hydrogen gas (3) Dust clouds
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: What diameter telescope is needed to resolve the separation between an Earth-like planet and its…
A: The figure below depicts the given situation.
Q: Why are the Gas giants farther out in the solar system than the terrestrial(rocky) planets?
A: If we carefully observed in our solar system , solid ( rocky ) bodies are exist generally not gas…
Q: Orbital Period= Orbital Radius= Brightness Drop= Planet Radius= Doppler Shift = Velocity = yrs AU %…
A: We know the formula of orbital period T = 2πR3GMWhere R = 2615.42 RsunR = 2615.42 ×696340×103m =…
Q: We observe a star that is dstar away. How much extinction would there need to be (i.e., what must…
A:
Q: If a protostellar disk is 210 AU in radius and the disk plus the forming star together contain 4…
A: the orbital speed is, v=GMr one solar mass is 1.989×1030 kg and 1 AU is 1.496×1011 m. thus,…
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: Taking Neptune to be at a distance of 30.6 AU from the Sun, how long does it take for a photon to…
A: The speed of an object is the rate of change of the distance travelled by the object with respect to…
Q: IM 20 M² 0.2 Calculate accleration?
A: Concept used: Frictional force acts in direction opposite to applied force.
Q: H₁² (μ^_^)^. (μS) - fμl = ((16.85)² + (-10.7.56)²)/2 = 2 mas y-1 mas/yr
A: Here we will find the magnitude of the given expression.
Q: Venus can be as bright as apparent magnitude -4.7 when at a distance of about 1 AU. How many times…
A:
Q: Venus can be as bright as apparent magnitude −4.7 when at a distance of about 1 AU. How many times…
A: Distance, d = 7 pc Original Magnitude, M=-4.7 Need to find the apparent magnitude.
Q: What is the predicted fate of Triton?
A: Triton is the largest natural satellite of Neptune. It has a retrograde orbit or Triton has an orbit…
Q: Why must astronomers use infrared telescopes to observe the motions of stars around Sgr A*?
A: There is dust in the interstellar medium made of molecules and elements send out from the surface of…
Q: If the hottest star in the Carina Nebula has a surface temperature of 51,000 K, at what wavelength…
A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is…
Q: If an individual was observing our solar system from Castor at a distance of 6.0 light years. What…
A: CONCEPT: We know, Angular separation(in degrees)=(physical separation)×360°2π×distance And physical…
Q: Observations show that the gas ejected from SN 1987A is moving at about 10,000 km/s. How long will…
A:
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: Two stars are found to orbit each other once every 6.00 months. If the orbital radius (distance)…
A: According to Kepler’s third law, for a binary star system, we have the following relation between…
Q: If a star converted every bit of its mass into energy the conversion efficiency would be 100%.…
A:
Q: Venus can be as bright as apparent magnitude -4.7 when at a distance of about 1 AU. How many times…
A: Apparent magnitude and absolute magnitude of a celestial object are related by the equation…
Q: 24 km/s. Its diameter is 1.5 c•y. (a) How old is the gas shell? (b) If the central star of the plan-…
A: Given: Nebula star is 12 times luminous as the sun, Nebula star is 15 times hotter as the sun, To…
Q: Venus can be as bright as apparent magnitude -4.7 when at a distance of about 1 AU. How many times…
A:
Q: A halo CME is observed moving away from the Sun. Should we expect this CME to impact Earth?…
A:
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.
Q: The Perseverance rover landed on Mars in early 2021. During travel to Mars, the spacecraft carrying…
A:
Q: If a protostellar disk is 240 AU in radius and the disk plus the forming star together contain 9…
A: Given Radius r = 240 AU Mass m = 9 Solar mass Known Values 1 AU = 1.496 x 1011 m 1 solar mass =…
Q: Venus can be as bright as apparent magnitude -4.7 when at a distance of about 1 AU. How many times…
A:
Q: An asteroid is 3 AUaway fromthe Sun when it is observed from the Earth at opposition. How large does…
A: The condition for the asteroid to block the Sun-like star is Here is the angle subtended by the…
Step by step
Solved in 3 steps
