THE SIGNS AS NEBULAE

Aries: The Eagle Nebula

Taurus: Spirograph Nebula

Gemini: Medusa Nebula

Cancer: Crab Nebula

Leo: Cat’s Eye Nebula

Virgo: Blinking Planetary

Libra: Trifid Nebula

Scorpio: Ghost of Jupiter

Sagittarius: Lemon Slice Nebula

Capricorn: Owl Nebula

Aquarius: Helix Nebula

Pisces: Butterfly Nebula

Butterfly emerges from stellar demise

This celestial object looks like a delicate butterfly. But it is far from serene.

What resemble dainty butterfly wings are actually roiling cauldrons of gas heated to nearly 20 000 degrees Celsius. The gas is tearing across space at more than 950 000 kilometres per hour — fast enough to travel from Earth to the Moon in 24 minutes!

A dying star that was once about five times the mass of the Sun is at the centre of this fury. It has ejected its envelope of gases and is now unleashing a stream of ultraviolet radiation that is making the cast-off material glow. This object is an example of a planetary nebula, so-named because many of them have a round appearance resembling that of a planet when viewed through a small telescope.

Credit: NASA, ESA and the Hubble SM4 ERO Team
Source: http://www.spacetelescope.org/images/heic0910h/

Reflections in Nebula NGC 1333

Nebula NGC 1333′s gas and dust clouds reflect the light of the stars in and around the Nebula. Because the gasses are not given enough energy from their stars to become charged, they reflect light at the same frequencies as the surrounding stars. This “reflection” is what causes some areas of the nebula to differ in color (aka their frequency spectrum). In the above image we can see several distinct regions of reflections: red, green, and light blue. Science can be really beautiful! 

Credit: NASA/JPL/Spitzer & Cal-tech