6) Estimate the distance to the star with absolute magnitude -5.6 and apparent magnitude 0.75
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- The apparent magnitude of a celestial object is the brightness measured by an observer at a specific distance from the object. The absolute magnitude is the magnitude of a celestial object if it was observed from a distance of 10 parsecs.
- By knowing the magnitudes it is possible for us to estimate the distance to the given star. This relation is called the distance magnitude relation. It is given by,
Here d is the distance to the celestial object, m is the apparent magnitude, and M is the absolute magnitude.
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- 3- Consider a binary star system in which the two stars are seen to be 1.50" apart. Determine the actual physical separation of those stars (in AU) if this binary system is located 9.50 1.y. from us.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)31) Star Sirius has an apparent magnitude of -1.47 and an absolute magnitude of 1.41. Estimate the distance to Sirius.
- 33) A star is observed to be having an absolute magnitude of -5.6 and is located at a distance of 159.96 pc. Estimate the apparent magnitudeAsap8) A neutron star is found with a radius of 10 km and has a surface temperature of 1,000,000 K. Calculate its luminosity with respect to that of the Sun. nts)
- As seen from earth the sun has an apparent magnitude and of about -26.7 what is the apparent magnitude of the sun as eeen from Saturn about 10AU away?Given a star has a absolute magnitude of 2.5 and an apparent magnitude of 10.0. With this data calculate the distance.If the Sun is located at point F1, what is located at F2? a 12 b C F1 F2 Earth A star Nothing Sun Semi-major axis