Why is determining the precise mass of UY Scuti extraordinarily challenging for astronomers?

Answer

Its radius fluctuates actively due to its variability

The star's status as a variable star means its size and brightness change over time, making precise measurements of its radius, distance, and subsequent mass estimation inherently prone to error.

Why is determining the precise mass of UY Scuti extraordinarily challenging for astronomers?

#Videos

What If Earth Orbited UY Scuti? - YouTube

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