One of the closest stars to the sun has a parallax of 0.5 arcseconds. What is the distance to this star, in parsecs?
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Q: Explain Parallax
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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,
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Q: According
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Q: How many light years are in one parsec? (Use at least two significant figures)
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Q: A star is observed to have a parallax of 0.0015". What is the distance to the star in units of AU?
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Q: How far away is the star Spica, whose parallax is 0.0130?
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Q: Calculate the apparent magnitude of the Sun.
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- Find the distance in parsecs to Proxima Centauri, which has an annual parallax of 0.772 arcsec.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)If a star’s parallax is 35 arcseconds, what is the distance to the star?
- The right ascension and declination of the seven stars of the Big Dipper are given below: Star Right Ascension Declination Alkaid 13h48m +49° 19' Mizar 13h24m +54°56' Alioth 12h54m +55°58' 12h15m +57°02' 11h54m +53°42' Merak 11h02m +56°23' Dubhe 11h04m +61°45' (1) For what range of latitude are all the stars of the Big Dipper circumpolar? Megrez PhecdaWhat would the angle between the Sun and the Earth be if the solar system were viewed from a distance of 1 pc?A planet is detected at 0.5" from its star. The star is 10 parsecs away. How many AU from its star is the planet?
- Double stars are stars which are close enough and move slowly enough that they orbit each other. Each star is located at the focus of the ellipse of its orbit around the other star. Consider a binary star system which has an average angular separation of 6.1" arc and a period of 87.3 years. The annual parallax of the stars, p, is 0.192"arc. We call the measure of the angular separation of the two stars, . [remember that 1 degree is divided into 60 'arc (read this as 60 minutes of arc) and each 1'arc is subdivided into 60"arc (read this as 60 seconds of arc)]. The distance to the binarystar system is calculated from its parallax , p, of 0.192"arc, which has been measured carefully over a period of the last 92 years. First we must calculate the distance to the binary system: D = 1/p where p is the parallax in seconds of arc giving D in parsecs. The distance, D = 1/p = ________ pc How many light years does this correspond to? (remember that 1 pc = 3.26 lt yr) D (in light…What is the right ascension in hours, minutes, and seconds of a star at RA 239.768°?