... Determining velocities for the blobs is a very complicated procedure, because the spectra show emission lines produced by the equatorial blobs as well as strange emission lines and starlight reflected from the core region of the nebula. ...
... Nebula: A cloud of gas and/or dust in interstellar space. (The word nebula in Latin means "cloud"; its plural is "nebulae.' ... Nebulae can make themselves apparent by glowing (as "emission nebulae''), by scattering light from stars within them (as ...
... a host of individual comets, asteroids, moons, planets, stars, nebulas, and galaxies ... light and radio photographs of nebulas, galaxies, and sundry deep-space phenomena ...
... Ray Bursts, P. M sz ros; Radio Emission from Supernovae and Gamma-Ray Bursters, Kurt ... sky charts point out constellations, star clusters, galaxies, nebula and more ...
... to accretion of matter and the emission properties of the Galactic Center black hole ... laid over the photograph, circles and labels the major stars, clusters, and nebulas ...