If a star with a radius of 600000km has a surface temperature of 6000K, calculate its luminosity

Use the formula Luminosity = (Surface temperature)^4Surface area Stefan's constantCalculate surface area with 4piradius^2Area=4.5210^18therefore luminosity= 4.5210^18 * (6000)^4 * 5.6710^-8luminosity = 3.3210^26 Watts

Related Physics A Level answers

All answers ▸

Why is gravitational potential energy negative?


How does light from distant stars show how fast they are moving away from us.


How does conservation of momentum work when at least one of the bodies in the problem changes mass?


Explain the forces involved in a pendulum set up.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences