2 comments on “Mass Loss at Betelgeuse

  1. Pingback: Chronik des Universums: zweite Juli-Hälfte 2009 « Skyweek Zwei Punkt Null

  2. With a varying distances I’ve found for this star currently being published, between 430 and 700, how are we able to establish the correct luminosity and mass to a dgree that is satisfactory? I understand the formula but haven’t found anything that specifically states we know with any certainty what the distance is.

    I do see that the margin is small enough to have a very good guess, but shouldn’t we be able to get this nailed down much better with the resources we have now?

    Thanks for a good article.

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