Astronomy

Supermassive
(4 million solar masses)
15 million miles (24 million km)

4.7 Earths across

Stellar mass

(10 solar masses)

37 miles (60 km)

17 Suns across

Intermediate mass

(10,000 solar masses)

Up to 37,000 miles (60,000 km)

Rhode

Island

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The diameter of a

black hole’s event

horizon increases in

direct proportion to its

mass. A black hole with

10 times the Sun’s mass

would span 37 miles

(60 km), while the one

in the Milky Way’s center

measures 17 Suns across.

ASTRONOMY: ROEN KELLY

The sizes

of black

holes