Sirius, how fast is Sirius
Q: Which star is the faintest: alpha gemini, beta perseus, gamma perseus, beta gemini
A: The star cluster, that is, a tiny glob of stars on the outskirts of the Milky Way that are…
Q: What is the distance in parsecs to Vega, which has an annual parallax of 0.129 arcsec.
A: Annual parallax (p), p=0.129 arcsec
Q: How many times brighter or fainter would a star appear if it were moved to: a. twice its present…
A:
Q: 31) Star Betelgeuse has an apparent magnitude of 0.42 and an absolute magnitude of -5.6. Estimate…
A: The distance magnitude formula relates the apparent and absolute magnitude of a celestial object…
Q: Hertzsprung-Russell Diagram Blue or blue white White Yellow Red orange Red Superglants beleignne…
A: In this problem, it is asking about the brightest star.
Q: Hertzsprung-Russell Diagram Blue or blue White Vellow Red-orange Red Rigel Beteignuse Aldebaran…
A: As it can be seen from Hertzsprung-Russell diagram that the y axis represents brightness which…
Q: Why is the sun orange?
A:
Q: If a star has a parallax angle of 0.768" and the width of your pinky is about 1 degree, what…
A: Parallax method is used to find the distances of distant objects. Parallax can be understood with…
Q: Hertzsprung-Russell Diagram Blue or blue w White Vellow Red orange Red Rioe Supergl Beteigeuse Main…
A: The region of main sequence contains large number of stars than any other region. Therefore most of…
Q: DISTANCE IN
A: Parallax angle is in mas, we can convert angle to distance in parsec by following formula Distance…
Q: Q8. Measured the parallax angle of the Sirius Yanmaniya star, see Figure, and found 0.377 arcsec.…
A: Given : Parallax angle of Sirius Yamaniya star, p* =0.377 arcsec
Q: What is the most common type of star?
A: There are different types of stars in our universe. They are mainly categorized based on their mass,…
Q: What is the surface temperature of a star that emits light with a wavelength of 400 nanometers?
A:
Q: If star B is a 5th magnitude star and star C is 9th magnitude, what is their brightness ratio? Light…
A: Apparent magnitude of the star m is the measure of brightness of star from earth. Brightness is also…
Q: Which star is actually dimmer than Arcturus?
A: We know that, Distance magnitude is inversional proportional to Brightness. Greater the magnitude,…
Q: One of the stars nearest Earth is Proxima Centauri, which is 4.2 light years away. One of the…
A: One of the stars nearest Earth is Proxima Centauri, which is 4.2 light years away. One of the…
Q: an absolute magnitude of -3 is more luminous than an absolute magnitude of-8.
A: Given, Absolute magnitude of objects
Q: Earth tugs the sun around as it orbits, but it affects the radial velocity of the sun by only 0.09…
A:
Q: At rest, hydrogen has a spectral line at 144 nm. If this line is observed at 168 nm for the star…
A: Given that Hydrogen has a spectral line at λ= 144 nm =10-9m This line is observed at λ'= 168 nm=10-9…
Q: What is the temperature of a star emitting light with a peak wavelength of 7,080 angstroms? T=…
A: Given : λmax = 7080 angstroms = 7080*10-10 m. From Wien's law the temperature of star is T =…
Q: Two stars have the exact same luminosity, but star Y is four times dimmer looking that star X. This…
A: Basic Details Two stars star X and star Y have same luminosity. The brightness of the star is…
Q: What is the difference in magnitude for two stars is one appears four times brighter than the other?
A: one star appears four times brighter than the other It means the intensity of the total…
Q: Two stars have the difference between their apparent magnitudes +5, so their apparent luminosity…
A: The difference between the apparent magnitude is given as m1-m2=+5
Q: Sirius, the brightest star in the sky has a parallax of 0.379 arcsec What is its distance in…
A:
Q: From Earth, the Sun appears brighter than any other star because the Sun is the
A: From Earth , the Sun appears brighter than any other star because the Sun is the ______
Q: Distinguish between eutectoid and eutectic terms a in binary system.
A: We have to give difference between eutectoid and eutectic terms
Q: How does luminosity differ from apparent brightness ?
A: The difference between luminosity and apparent brightness depends on distance. Luminosity is an…
Q: From the HR diagram above, we could determine that the star Barnard's Star has a temperature 3.03E+3…
A: Solution: The luminosity of state is given by the following formula, L=4πR2σT4…
Q: Why do distant stars look redder than their spectral types suggest?
A: The pace is mostly empty but there are areas of large density of the interstellar medium. It…
Q: nound a Star a verocity 4x 1ou can conewe to the Stardas eto the Star as Pa seto the Staras Pg away…
A: Newton's Law of Gravitation According to Newton's Law of gravitation, the gravitational force…
Q: The star Sirius has an apparent magnitude of -1.46 and appears 95-times brighter compared to the…
A: Part a: Magnitude in astronomy is defined as an index for the brightness of a star and is denoted by…
Q: The amount of energy that falls on a given area every second, at the Earth is called: magnitude.…
A: Energy is incident on Earth surface from Sun .
Q: Which star is at higher temperature, a red star or a blue star?
A: The temperature of blue star is 40000 Kelvin degrees.
Q: Star A has an apparent magnitude of -1. Star B has an apparent magnitude of 3.5. Find BĄ/BB, where…
A:
Q: Hertzsprung-Russell Diagram Blue or blue-white White Yellow Red-orange Red O Rigel Supergiants…
A: Option a is the right answer Red color of the stars have lowest surface temperature
Q: Stars A, B, C, D, and E have apparent magnitudes of 7, 3, -1, 15, and 0, respectively. 1) Which…
A: Here, Apparent Magnitude of Star A=7 B=3 C=-1 D=15 E=0
Q: What is the color of the stars shown on the diagram that have the lowest surface temperature? O red…
A: Required: Color of the stars,
Q: You see a blue star directly over Avalon's equator. It appears to be moving north at 5.0 arcseconds…
A: Given: The star moves north at 5.0 arcseconds per year. To determine: The distance of this star from…
Q: Calculate the gravitational energy released by the Sun.
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: A nearby star has a parallax of 0.317 arcseconds. How long does it take the light from this star to…
A:
Q: Temperature (C) What is the color of the stars shown on the diagram that have the highest surface…
A: SOlution: To find the highest temeprature region in the graph
Q: The white dwarf star Sirius B has a luminosity of 0.025 L⊙. If you were 1 AU from Sirius B, would…
A: Given,Temperature, Apparent magnitude of the sun, The luminosity of the star sirius B, The…
Q: What does a quarter wavelength look like , like theta/4
A:
Q: 10 15 20 25 Magnitude is an indication of the brightness of the object. Apparent magnitude is how…
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: A less massive star will usually live longer than a more massive star O True O False
A: In star hydrogen is the fuel
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