Nebulae For Christmas
If our
Galaxy were a Christmas tree,
planetary nebulae would adorn it
like colorful lighted ornaments twinkling on a cosmic scale.
Glowing shrouds of gas ejected by red giant stars,
planetary nebulae
like NGC 6578 (left) and
IC 3568 last for a mere 10,000 years or so
as swollen stellar giants
are transformed into fading,
cooling white dwarf stars.
Meanwhile ... have a safe, happy holiday season and
Best Wishes to all from APOD!