How much brighter can Venus be at its peak magnitude (approx. -4.9) compared to Sirius (approx. -1.46)?

Answer

Hundreds of times brighter

An object five magnitudes brighter appears 100 times brighter. Since Venus's magnitude difference from Sirius is about 3.44, it is hundreds of times brighter when optimally placed.

How much brighter can Venus be at its peak magnitude (approx. -4.9) compared to Sirius (approx. -1.46)?
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