Bubble Nebula Region in Mapped Color
About
this Object
The
Bubble Nebula (Lower left) is a glowing cloud of stars, gas, and dust
located some
11,300 light years away toward the constellation Cassiopeia.
(The
Bubble Nebula is also designated as NGC 7635.) The nebula surrounds a
hot star roughly 20 times more massive than the Sun, which
is visible
near the left-hand edge of the image. Ultraviolet light from the star
causes the gas to glow through a process known as
fluorescence, and
winds of material blown out from the star give the nebula its
characteristic shape.
The nebula is some 10 light years across.
Image
Details
