Calculate the exchange arc
Q: Dinary star system is observed orbiting with a period of 20.0 years, at an average distance of 5.0…
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Q: Some thing that is 50 km away has an angular size of five arc seconds how tall is the object write…
A: Angular size, θ = 5 second of arc Distance, r = 50 km = 50×103 m Consider height is h. First…
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: Effective Temperature (K) 25,000 10,000 -10 6,000 3,000 10 102 A +10- D 10-2 +15 B A 104 M F…
A: The Hertzsprung Russell diagram is used to plot the temperature of stars with their luminosity.…
Q: Put the steps of the life cycle of a star in order.
A: Required : Steps involved in star cycle.
Q: What are the approximate spectral type, temperature, absolute magnitude number, and luminosity of…
A: Required : Spectral type, absolute magnitude, temperature and luminosity of star E.
Q: NIT Vn(x, t)=√ sin(x) e-Ent/h, for and ₁(x, t) = 0 elsewhere. 1) Calculate the probability densities…
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Q: Find the distance in parsecs to Vega, which has an annual parallax of 0.129 arcsec. pc
A: It is given that,
Q: Find the distance in parsecs to van maanen's star, a nearby white dwarf, which has an annual…
A: given , parallax (p) = 0.232 arcsec
Q: Match the stars to their typical lifetimes on the main sequence. O Instructions 15 solar masses 1…
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Q: What are the a) luminosity and b)wavelength of maximum emission for a star with a surface…
A: Given data Temperature of the star, T=2000 K radius of the star, R=108 m
Q: How many parsecs are there in 212 light-years?
A: We know that 1 light year = 0.3066 parsecs
Q: why can a total solor eclpise observe in argenita not be observed in egybt
A: Introduction: Eclipse is a phenomena where one object moves under the shadow of other object.…
Q: Increasing wavelength
A: 21-Gamma rays 22- X-rays 23- Ultraviolet rays 24- Infrared rays 25- Radio waves
Q: The shock wave produced by the supernova expended from the center and is currently at the edge of…
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Q: Calculate the size of the Schwarzschild radius for the Sun. Choose the option below that most…
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- Order the sequence of events that occur when a start with roughly the mass of the Sun exhausts the hydrogen in its core and stops the generation of energy by the nuclear fusion of hydrogen to helium? 1 2 3 4 [Choose ] [Choose ] [Choose ] [Choose ]What is 4b?Stars A, B, C, D, and E have apparent magnitudes of 7, 3, -1, 15, and 0, respectively. 1) Which star appears brightest to us? 2) Which appears faintest?
- Which of the following WOULD NOT characterizes the type(s) of star we would find at g, m, n, o, and p on the Hertzsprung-Russel Diagram (Figure 4) a. are all smaller than q,i,h. b. fuse hydrogen into helium. c. are called, “the main sequence”. d. fuse He into heavier elements. e. get smaller towards the right sideWhich of the following is largest? the size of a typical star. 1 AU. the size of the earth. 1 light-minute.A turnoff point corresponding to the youngest star cluster would occur at what spectral classification? a. B b. A c. F d. G
- QUESTION 16 Use the figure shown below to complete the following statement: A low-mass protostar (0.5 to 8M the mass compared to our sun) remains roughly constant in decreases in until it makes a turn towards the main sequence, as it follows its evolutionary track. Protostars of different masses follow diferent paths on their way to the main sequence. 107 Luminosity (L) 10 105 10 107 10² 101 1 10-1 10-2 10-3 Spectral type 0.01 R 0.001 Re 60 M MAIN SEQUENCE 40,000 30,000 20 Mau 10 Mgun 5 Mun 0.1 Run Ren radius; temperature luminosity; radius 3 Min. 05 BO temperature; luminosity Oluminosity: temperature radius: luminosity 1 M 10,000 6000 Surlace temperature (K) 1,000 Rs 2 M STAR L 0.8 M B5 AO FOGO КБ МБ -10 +10 3000 Absolute visual magnitude andthe 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 the following is the smallest? b. neutron star c. red giant d. main sequence star e. protostar