What is a seeing disk?

Related questions

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2. What is pincushion effect?
3. Can telescope see through clouds?
4. What is the hottest thing to exist?
5. Why do astronomers use adaptive optics?
6. What does distortion mean in photography?
7. What causes atmospheric turbulence?
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Tags

1. #seeing
2. #possible
3. #celestial
4. #resolution
5. #astronomy
6. #within
7. #telescope
8. #angular
9. #achieved
10. #sphere
11. #which
12. #optical
13. #viewing
14. #atmosphere
15. #reference