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Originally posted by fah0436
reply to post by woogleuk
If the appearance is caused by an atmosphere anomaly like scintillation, wouldn't at least SOME other stars and maybe even planets be affected? Especially those close to Sirius or on the horizon where is effect is more pronounced.
So why don't planets twinkle? It's because planets are bigger. Well, really, they're smaller than stars, but they are so much closer they appear bigger to us. They are much bigger in apparent size than the air bundles, so the smearing out of their light is much less relative to the size of the planet itself. Since the image doesn't jump around, they don't appear to twinkle.
There's always an exception though. In very turbulent air, even planets can appear to twinkle. The air is moving so rapidly and so randomly that even something as large as a planet can twinkle.
Originally posted by CastleMadeOfSand
just throwing this out there, but it could have something to do with the NASA announcement coming this Mon. Perhaps it is a star that has gone Supernova? Just my deflated 2 cents worth.
Originally posted by russ1969
Originally posted by CastleMadeOfSand
just throwing this out there, but it could have something to do with the NASA announcement coming this Mon. Perhaps it is a star that has gone Supernova? Just my deflated 2 cents worth.
If it is a star going supernova it would be ‘Betelgeuse’. There are many articles out there for you to look at on google. I am not posting them here because astronomers dont have a clue when it will happen, could be today, could be 100k years from now.