Emission nebula

A rose to all on Valentine's Day Long Stem Rosette Nebula Image by Adam Block & Tim Puckett

The essential guide to astronomy

Discover the enigmatic Sh2-114, the Flying Dragon Nebula, in Cygnus. Explore its unique features and why it fascinates astronomers. Join us on this co

Nebula IC 63 - aka the "ghost" of the constellation Cassiopeia - is slowly dissipating under the influence of ionizing ultraviolet radiation from a hot, luminous variable star known as Gamma Cas.

Tumblr is a place to express yourself, discover yourself, and bond over the stuff you love. It's where your interests connect you with your people.

A different astronomy and space science related image is featured each day, along with a brief explanation.

This one is a composite of 2.5 hours of H-alpha from my QHY9 CCD and 2 hours of RGB from my modified Canon XSi DSLR. Both through my William Optics 66mm triplet at f5.6. They didn't line up perfectly, but if you don't look to closely it's a reasonably nice blend of nebulosity from the h-alpha data and star colours from the RGB data. Framed it just for kicks.

Bubble Nebula (NGC 7635) Stretched Canvas Print. Find art you love and shop high-quality art prints, photographs, framed artworks and posters at Art.com. 100% satisfaction guaranteed.