If a star has a parallax of 0.050 arc second, what is its distance in pc?
Q: Use a diagram to explain what is meant by the parallax angle, p, for a star observed twice from…
A: Diagram for explaining parallax angle: o star / \…
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: Orion nebula is located at 450 pc. Calculate the parallax angle.
A: Parallax is a method used to calculate the distance to astronomical objects like stars. Parallax is…
Q: If a star is located at 62.5 pc and has an apparent magnitude of 6 what is it absolute magnitude?
A: The brightness of a star is determined by its composition and distance from the Earth. There are two…
Q: Find the distance in parsecs to Vega, which has an annual parallax of 0.129 arcsec. pc
A: It is given that,
Q: Which star in the table below has the greatest diameter? Star Name d (parsecs) Parallax…
A: d. 58 Ori
Q: A visual binary is composed of two stars A and B. This visual binary has a rotation period of 59.94…
A:
Q: According
A: There is a simple relationship between a star's distance and its parallax angle: d = 1/p The…
Q: A star is observed to have a parallax of 0.05". If we were to send a radio signal towards this star…
A: The parallax angle of a star is observed to be θ=0.05''=0.05 arcseconds. Let the distance to the…
Q: If a star is 30 parsecs away what is it's observed parallax shift ?
A: Given thatThe distance to the star (d)=30 parsecsParallax Formulad=1pp=the parallax angle of the…
Q: The greatest parallax angle of any star outside our solar system as viewed from Earth is Group of…
A: 1)We know that the parallax angle for the distant star is smaller, and the parallax angle for the…
Q: is
A: The relationship between apparent visual magnitude(m), Absolute visual magnitude(Mv) and distance(d)…
Q: The mass of a star is 1.99·1031 kg and its angular velocity is 1.60E-7 rad/s. Find its new angular…
A: Given data: The mass of the star is m=1.99x1031 kg. The initial angular velocity of the star is…
Q: You observe a star with an apparent magnitude mv=12 at a distance of 1 kiloparsec. What is this…
A: The relation between apparent magnitude, absolute magnitude, and distance of star in parsec is given…
Q: A distant F0 star is 6.3 times less bright than a nearer F0 star which has a parallax of 0.2…
A: Given: p=0.2 arcsec The distance of the distant F0 star from the nearer F0 star is : d=1p=10.2=5…
Q: You measure a star to have a parallax angle of 0.04 arc-seconds. What fraction of a degree is this?
A: Given 0.04 arc second=....°
Q: Calculate the absolute magnitude of a star at a distance of 6 pc with an apparent magnitude of 3.
A: The apparent magnitude and absolute magnitude are two terms used to define the brightness of a star.…
Q: A star is observed to have a parallax of 0.0015". What is the distance to the star in units of AU?
A: The distance to the star can be calculated using the formula: distance (in parsecs) = 1 / parallax…
Q: An object was discovered on Feb. 24.37 UT (position R.A. = 5h35m.8, Decl. = -69 18'), obtained m =…
A: Absolute magnitude and apparent magnitude of any stellar object are related as M=m-2.5logd102M is…
Q: How far away is the star Spica, whose parallax is 0.0130?
A: When an observer's point of view changes the displacement observed for an object is called as…
Q: What is the lifetime on the main sequence of a star whose surface temperature is 6500° K and whose…
A: Denote Stefan’s constant by σ. Evaluate the star’s luminosity (L) from its given temperature (T) and…
Q: An object was discovered on Feb. 24.37 UT (position R.A. = 5h35m.8, Decl. = -69 18'), obtained m =…
A: Given information: The apparent magnitude of the SN at its peak brightness is (mp) = 2.8 The…
Q: What is the parallax of a star that is 150 pc from Earth?
A: The parallax is given by
Q: Calculate by how many times Betelgeuse is brighter than the Sun, if its parallax is 0.006 arcsec,…
A: The objective of the question is to calculate how much brighter Betelgeuse is compared to the Sun.…
Q: A nearby star has a parallax of 0.317 arcseconds. How long does it take the light from this star to…
A:
Q: How do you calculate the mass of a star?
A: To calculate mass of a single star is a difficult process however to calculate the mass of binary…
Q: A star has a distance of 40 pc. What is the parallax of the star?
A: The distance of a star and its parallax are related as, d=1/p, where, d= distance in parsecs, and…
Q: How far, in parsecs, is an object that has a parallax of 1 arc second? How far is it, in light…
A: By the fundamental unit of astronomy; "A star with a parallax of 1 arcsecond has a distance of 1…
Q: The light curve (apparent magnitude as a function of time) of the star d-Cephei is 3.5 8-Cephei…
A:
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- A Type Ia supernova is observed and achieves an apparent magnitude of m = 19.89 at peak brightness. The absolute magnitudes of Type Ia supernovae at peak brightness are known to be M=−19. Determine the distance to the supernovae in units of Mpc.A star with a trigonometric parallax of .02 arcseconds has a distance of O2.0 light years. 50 pc. 4 kpc. 20 pc. O need more information (magnitudes)Question A1 Use a diagram to explain what is meant by the parallax angle, p, for a star observed twice from Earth, with a 6-month interval between each observation. Hence define the parsec, and calculate its value in astronomical units and metres. The star Betelgeuse is observed to have a parallax angle p = 4.5 x 10-³ arcseconds. State the distance of Betelgeuse in units of parsecs and light years.
- What is the parallax of a star that is 13.00 light-years away?A star is observed to have a parallax 0.45". Show that it is a distance of 7.2 LY away.A cepheid star is located at a distance of 24.8kpc from the Earth and has an apparent visual magnitude of 13.3. Determine its pulsation period in days. Consider the following expression of the Leavitt relation My -2.78 log Pdays - 1.35, where My is the absolute visual magnitude and Pdays the pulsation period in days to 2 decimal places.
- At the distance of Earth, 1AU, the Sun's apparent brightness in the sky is about 1250 W/m 2 . What is the brightness that we would measure from a distance of 0.5 AU? What is the brightness that we would measure from a distance of 2.0 AU?Given a star has a absolute magnitude of 2.5 and an apparent magnitude of 10.0. With this data calculate the distance.What is the right ascension in hours, minutes, and seconds of a star at RA 239.768°?