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A “star crash” in 2022…?

11 Jan 2017, 08:43 UTC
A “star crash” in 2022…?
(200 words excerpt, click title or image to see full post)

Ok, so this epic “star crash” predicted for 2022… sounds fascinating, and if it happens it will be a) very interesting to see, and b) a great success for the scientists making the predictions. But there is SO much hype about what it will look like! If you read some reports online it will be “dazzling”, or “blazing”, or “as bright as one of the brightest stars in the sky!” But if you take a moment to read the actual predictions, the astronomers are predicting a maximum magnitude of 2… which makes it as bright as Polaris… which is not really that bright at all (although many people think it is the brightest star in the sky) or one of the stars in The Big Dipper, which are all roughly around magnitude 2.

Now, that means that IF this star suddenly appears in Cygnus it will be very noticeable to astronomers and sky-watchers, who know the patterns the stars make up there so well they will instinctively realise that Cygnus looks… wrong… But non-astronomers will not have their gaze drawn to it, it won’t be bright enough to do that (although if it is a “red nova” as it’s ...

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