categories (which is the majority of them, at least in our own galaxy) is as follows: First deduce the likely temperature and size of the star from its dominant colour and the atomic spectra present in its light (temperature is related to colour, and different chemical elements are produced under different conditions of temperature and pressure, which in turn depend on the mass and age of a star). From these we can work out the likely luminosity. From the luminosity we can deduce the stars absolute magnitude [1] (i.e. how bright it would appear at a standard, fixed distance of 10 parsecs from us). Comparing this with the star’s apparent (i.e observed) magnitude, we can then calculate it’s actual distance from us. To me, this method of deducing a star’s distance from us merely by studying its light, and then doing a few calculations based on thermodynamics, nuclear physics, atomic physics and stellar dynamics, represents one of the most beautiful examples of the power of human ingenuity and careful, deductive reasoning in the history of science.
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I was hoping Delores wouldn’t become a Beautiful Girl Hajimete No Gal Anime Trending Unisex T Shirt aggressive rooster, as my recently deceased “Lance” had been, before passing on to “rooster heaven” with the assistance of a local coyote. The rooster I currently had, Gordon, was a sweet boy and was very happy to have Lance gone. Lance had been a fierce rooster who attacked literally every moving thing but the hens and me (displaying extreme good taste and discretion) and I was not prepared to live through as second several years of yet another “attack rooster”. Neither were the neighbor dogs. Nor were the neighbors, for that matter. I really didn’t think this would be a problem, as Delores was such a sweet rooster – showing no violence or aggression at all, and just wanted to sit on my shoulder (rather like a parrot) and look around. He’d snuggle against anyone’s neck or in anyone’s lap who would hold him and he adored being petted. Delores ran around digging for bugs in the lawn – but was just as happy sitting by the kitchen sink watching me trim vegetables or whatever. He made (as all my chickens did) a truce with the cats and was friends with the goats, horses and my other rooster, Gordon. They all slept together in the barn at night.
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