Building a Dyson Sphere around a Class-B Star

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Building a Dyson Sphere around a Class-B or Class-A star raises questions about the advantages and disadvantages of such a structure, particularly regarding energy harnessing and radiation management. The discussion highlights that while advanced civilizations might have the technology to construct such spheres, the practicality may be questioned, as they could potentially utilize more efficient energy sources. The concept of a protective globular shield is proposed to filter harmful emissions while also generating energy, creating a dual-purpose structure. Additionally, the viability of using a Dyson Sphere as a non-living energy source for less advanced technologies is explored, suggesting innovative applications. Overall, the conversation emphasizes the speculative nature of these ideas while considering the implications of advanced technology and energy utilization.
  • #31
Khatti said:
True enough. Have to go on family trip, will get back to you.
Check the orbits before you go, Rich Purnell might have a better trajectory for your trip.
 
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  • #32
Red giants (AGB stars) have some advantages over B stars. Total luminosity is over 1000X the sun. The lower gravity makes it easy to move the Dyson sphere (swarm) around with solar sails. The red giant's solar wind would have "metals" available for more swarm construction and hydrogen for fusion. Red giants with solar mass do not become super novas.

A binary star gives you some gravity assisted options. Long tethers and orbital rings could add something like a steam punk look.
 

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