Jak określisz rozmiar regionu plam słonecznych?

The area of sunspot groups is expressed in "millionths of a solar hemisphere" (MH), with 1000MH corresponding to 3.043,7 million square kilometers. This means that a sunspot group which has an area coverage of 1870MH covers 0.187 percent of the earth-facing solar surface. Most sunspot groups cover an area about the size of the surface of the Earth (which equals almost 170MH) but the larger sunspot groups can easily reach 1000MH or even much more than that.

Obraz: Region plam słonecznych 11944 o rozmiarze 1480MH widziany przez Solar Dynamics Observatory. Ziemia została dodana dla skali.

Solar area conversion table

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