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by dredmorbius
4509 days ago
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Thanks for that. I managed to mis-read from Wikipedia: "The angular diameter of Earth's orbit around the Sun, from a distance of one parsec, is 2″ (two arcseconds)." Somewhat lower on the page we find: "The table shows that the angular diameter of Sun, when seen from Earth is approximately 32 arcminutes (1920 arcseconds or 0.53 degrees), as illustrated above." So, if my initial estimate of "thumb at arm's length is the size of the Sun", then my "two hands spanned" is about 4x too small ... woah. Hold your arms out at a 45° angle. That's about the size of it. That would be ... a lot of star in the sky ... I also should've trusted my first impression on the 0.5 degree as well. I believe I knew that. Hasty verification fouls memory. |
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