ISS Visibility If Painted Black?

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Discussion Overview

The discussion revolves around the visibility of the International Space Station (ISS) if it were painted black, exploring the implications of surface texture and coatings on its reflectivity and visibility from Earth.

Discussion Character

  • Exploratory, Conceptual clarification, Technical explanation

Main Points Raised

  • One participant suggests that if the ISS were painted with a very rough matte surface, it might not be visible due to light scattering effects.
  • Another participant mentions the potential of anti-reflective coatings, referencing materials used in stealth technology, such as those on the B-2 Stealth Bomber, to reduce reflectivity.
  • A further suggestion includes the use of carbon nanotube coatings, which could theoretically minimize visibility, although the participant doubts it would be noticeable when the ISS passes in front of the moon.
  • There is a mention of the Fresnel effect and how a rougher surface could diminish its impact on visibility.

Areas of Agreement / Disagreement

Participants express various hypotheses regarding the visibility of the ISS if painted black, with no consensus reached on the effectiveness of different coatings or surface textures.

Contextual Notes

The discussion includes assumptions about the properties of light scattering and the effectiveness of specific materials, which remain unresolved.

Quantula
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Hey All,

Would the International Space Station be visible to the naked eye if it was painted black?

Thanks for any replies!
 
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Thanks for the post! Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
 
Assuming it was a very (rough) matte surface paint I suppose it wouldn't be visible, but direct sunlight up there is concentrated. The rougher the surface, light scatters in more directions, thus making the Fresnel effect (stronger reflection at angles) much less noticeable. Interesting question by the way! (:
 
Thanks for the reply! I’ll have to research anti-reflective coatings. Maybe the stuff they use on the B-2 Stealth Bomber would be sufficient to cut any noticeable reflectivity.

If mass production was feasible, one could cover the station in this carbon nanotube coating (http://www.nasa.gov/topics/technology/features/super-black-material.html)! You might be able to see it pass in front of the moon, but it would happen so quickly I doubt it would be noticeable.
 
Quantula said:
Thanks for the reply! I’ll have to research anti-reflective coatings. Maybe the stuff they use on the B-2 Stealth Bomber would be sufficient to cut any noticeable reflectivity.

If mass production was feasible, one could cover the station in this carbon nanotube coating (http://www.nasa.gov/topics/technology/features/super-black-material.html)! You might be able to see it pass in front of the moon, but it would happen so quickly I doubt it would be noticeable.
No problem Quantula! Interesting article, it appears light is scattered inside and the micro tubes pick up relatively the same reflection, impressive.
 

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