nebula

Converse of object

• discover: He described it as a " nebula discovered by M. Mechain.
• call: The expended gas frequently forms an impressive display called a planetary nebula that fades gradually over thousand of years.
• form: He will often stare at the cream dissolving in his coffee, forming specific nebulae, sometimes planets.
• see: Description: Here we see the nebula also in the infra-red.
• ionize: These are assumed to be responsible for the variety of shapes of the nebulae ionized by hot evolved stars.
• observe: The 150mm aperture enables you to observe bright nebulas in the depth of space.

Adjective modifier

• planetary: Our own Sun may eject a similar planetary nebula some 6 billion years from now.
• trifid: Polychrome The Trifid Nebula from CFHT -- very pretty.
• gaseous: I looked at Hubble's greatest hits: nebulae, spiral galaxies, planets, star clusters, gaseous nebulae.
• solar: Is a solar nebula the reason or is gravity the reason?
• faint: Narrow bandpass filters also take out sky glow emission lines which also helps to improve the visual contrast of very faint nebulae.
• bright: The 150mm aperture enables you to observe bright nebulas in the depth of space.

Modifies a noun

• theory: We get some evidence to support the nebula theories from looking a to support the nebula theories from looking at other star systems.
• filter: The standard nebula filter takes out a larger chunk of emission from orange out to the start of the nebula emission lines.

Noun used with modifier

• planetary: Features of Aquarius: Aquarius contains the famous planetary nebula Saturn Nebula.
• spiral: Historical No-one before Hubble imagined that the spiral nebulae might be other galaxies.
• reflection: NGC 1999 is an example of a reflection nebula.
• emission: The dark clouds block the light from the emission nebula behind.
• gas: The solar system formed from a large gas nebula that had some dust grains in it.
• crab: The crab nebula is the brightest supernova remnant in the sky.