Find the mass of the our galaxy

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    Galaxy Mass
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SUMMARY

The discussion focuses on calculating the mass of the Milky Way galaxy and using that mass to estimate the number of stars within it. Participants suggest utilizing the average mass of a star, with a recommendation to consider the mass of the Sun as a straightforward reference point. Additionally, they emphasize the negligible impact of associated planets on the overall mass calculation, advocating for a weighted average based on star size proportions in the galaxy.

PREREQUISITES
  • Understanding of galactic mass calculations
  • Knowledge of stellar mass averages
  • Familiarity with weighted averages in statistical analysis
  • Basic astrophysics concepts regarding star and planet mass
NEXT STEPS
  • Research the average mass of different types of stars in the Milky Way
  • Explore methods for calculating the total mass of a galaxy
  • Learn about the significance of the Sun's mass in astrophysical calculations
  • Investigate the distribution of star sizes and their impact on mass estimates
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Astronomy students, astrophysicists, and anyone interested in galactic mass estimation and stellar population analysis.

richman614
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im doing a problem were i find the mass of the our galaxy and i found the mass. What the problem is saying is to use the mass found to estimate how many stars are in our galaxy?
 
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richman614 said:
im doing a problem were i find the mass of the our galaxy and i found the mass. What the problem is saying is to use the mass found to estimate how many stars are in our galaxy?

Maybe you should look up the average mass of a star? I'm assuming the mass of the associated planets is nearly negligible in comparison.
 
Or you could look up relative proportions of star sizes in our galaxy and do a weighted average.

Or the simple way would be to just use the mass of the sun: you would have to justify this though.
 

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