For example: if a 10 solar mass star emits light at a peak wavelength of λ = 300nm.
How can I calculate a stars surface temperature, luminosity, radius, and lifetime with this infomation?
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$\begingroup$ You can figure out the temperature from the peak wavelength via Wien's law, and the star's lifespan from its mass (though that would be a very rough approximation). But the luminosity and radius are directly related to each other, and if one of them isn't already known, you've hit a dead end and are thus gonna have a hard time figuring out either. $\endgroup$– user177107Commented Aug 19, 2022 at 2:22
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2$\begingroup$ You asked virtually the same a day ago... astronomy.stackexchange.com/questions/50226/… The answer still applies. $\endgroup$– planetmakerCommented Aug 19, 2022 at 4:33
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$\begingroup$ Hi, welcome to Astronomy SE! On this site, we usually require the question to show some prior research on the topic. What have you tried so far? What do you know about the topic? You can edit the question and add all the relevant information regarding your previous approach and why it failed. In this way it will be much easier to get a satisfactory answer. $\endgroup$– PrallaxCommented Aug 19, 2022 at 6:20
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$\begingroup$ Please have a look at meta.stackexchange.com/help/how-to-ask and especially consider to edit your question in the light of the first paragraph titled 'search and research' $\endgroup$– planetmakerCommented Aug 19, 2022 at 20:58
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