Draco Dwarf

dwarf spheroidal galaxy · satellite of the Milky Way

266,000 light-years from Earth

Its stars move so fast that the galaxy must be held together by far more mass than they have. For every Sun's worth of light it holds about 100 Suns' worth of mass or more, so it is a favourite place to hunt for signs of dark matter.

• 266,000 light-years · as bright as 300,000 Suns
• about 100 Suns of mass for each Sun of light

kind

galaxy

size

7,400 light-years across