Number of stars within 150 light years of us?

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SUMMARY

Approximately 5900 stars are located within 150 light years of Earth, with around 840 of these being visible to the naked eye under optimal viewing conditions. The estimate may be conservative, as ongoing infrared and Doppler surveys are uncovering more 'Black' and 'Brown' dwarf stars, suggesting the actual number could be closer to 8500. These figures are contingent upon the limitations of current detection technology and the complexities of the mass function related to 'T' type stars.

PREREQUISITES
  • Basic understanding of stellar classification, including 'Black' and 'Brown' dwarfs.
  • Familiarity with astronomical distance measurement techniques.
  • Knowledge of infrared and Doppler survey methods in astronomy.
  • Awareness of the mass function in stellar populations.
NEXT STEPS
  • Research the latest findings from infrared surveys on nearby stars.
  • Explore the methods used in Doppler surveys for detecting faint stars.
  • Study the characteristics and classification of 'T' type stars.
  • Investigate advancements in technology that enhance star detection capabilities.
USEFUL FOR

Astronomers, astrophysics students, and anyone interested in stellar populations and the methods used to detect and classify stars within our galactic neighborhood.

jerich1000
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I would like to know how many stars are within 150 light years of Earth. There must be a website somewhere that has the number, or perhaps a graph correlating distance with number of stars.

I've done some searching, but you folks are much smarter than I am.

Thanks
 
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Approximately 5900 stars. Of which, ~840 are naked-eye visible under good viewing conditions.
 
Thanks!
 
Does the 5900 estimate allow for the increasing numbers of 'Black' and 'Brown' dwarf stars being found in our neighbourhood by infrared or Doppler surveys ?? I know the mass function is a bit tricky when 'T' types are so hard to find, yet apparently so plentiful...
 
5900 is probably on the low side, I think the actual figure is around 8500. Of course these numbers only reflect stars detectable using current technology.
 

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