Absolute magnitude (M) of a star is the apparent magnitude that a star would have if it were at distance of 10 pc from Earth. It is the true measureme
{"Image DocumentName": "Absolute magnitude (M) of a star is the apparent magnitude that a star would have if it were at distance of 10 pc from Earth.", "Image ImageDescription": "It is the true measurement of a star\u2019s brightness seen from a set distance. m \u2013 M = 5 log d 10. m \u2013 apparent magnitude. M \u2013 absolute magnitude of the star. d \u2013 its distance from the Earth measured in parsecs. \u2022 If two stars have the same absolute magnitude but different apparent magnitude they would have the same brightness if they were both. at distance of 10 pc from Earth, so we conclude they have the same luminosity, but are at different distances from Earth !!!!!!!!!!!!!! \u2022 Every one step in absolute magnitude corresponds to a factor of 2.51 change in luminosity. Ex: M1 = \u2013 2 and M2 = 5, then L1 / L2 = (2.51)7.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}