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- Thu Feb 24, 2011 6:59 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Star Size Comparisons (2011 Feb 22)
- Replies: 131
- Views: 42219
Re: APOD: Star Size Comparisons (2011 Feb 22)
In order for something to orbit VY Canis Majoris near its surface: mass_solar = 1.989e30 kg radius_vy = 2.8e9 km = 2.8e12 m mass_vy = 35 * M_solar = 6.962e31 kg G = 6.674e-11 specific force = G * mass / (radius^2) = 5.93e-4 N/kg specific centripetal force = velocity^2 / radius velocity = sqrt(specif...