For each problem, use the following values:c = 3x108 m/smass of the sun = 1.989 x 1030 kgluminosity of the sun = 3.828 x 1026 W1 AU = 1.496 x 1011 m1 pc = 3.262 light years = 3.086 x 1016 m1 year=3.154x107 secondsCritical density of our Universe (expressed as a mass density): Pcrit =8.7 x 10-27 kg m-³Critical energy density of our Universe: Ecrit = Pcrit c²G=6.674 × 10-11 m³.kg-1.s-21 eV = 1.60218 x10-19.Boltzmann constant: kg = 1.381 x 10-23 JK-18.617 × 10-5eV K-1energy density constant (in Stefan Boltzmann Law): a = 7.566 x 10-16 Jm-3 K-4 -4.7 x 10-³ MeV m-3 K-4Constant in Wein displacement law: b = 2.898 x 10-3 m Kbaryon-to-photon ratio, n = 6 x 10-10 We observe a star that is dstar away. How much extinction would there need to be (i.e., what must 7 be) if we had ignored intervening dust, and concluded that it was actually 2*dstar away?Value:dstar = 913 pcGive your response to two decimal places.

A star is observed that is at a distance away.We need to find the value of the extinction required…

Answered: We observe a star that is dstar away.…

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We observe a star that is dstar away. How much extinction would there need to be (i.e., what must 7 be) if we had ignored intervening dust, and concluded that it was actually 2 dstar away? Value: dstar = 913 pc Give your response to two decimal places.