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...cription|Method to determine the temperature of central stars of planetary nebulae}} ...' is a method to determine the temperature of central stars of [[planetary nebulae]]. It was developed by [[Herman Zanstra]] in 1927. ...

...name="pn" /> In 1956, it was added to a catalogue of Hα emission stars and nebulae by [[Karl Gordon Henize]], where it was described as an emission nebula rat ...ished in 1978 proposed that the formations of Henize 70 and other emission nebulae could be due to stellar winds.<ref name="meaburn" /> Later in 1981, a scien ...

...Herschel 400 observing guide : how to find and explore 400 star clusters, nebulae, and galaxies discovered by William and Caroline Herschel|date=2007|publish ...Herschel 400 observing guide : how to find and explore 400 star clusters, nebulae, and galaxies discovered by William and Caroline Herschel|date=2007|publish ...

...journal |title=Nebular Spectroscopy: A Guide on H ii Regions and Planetary Nebulae |url=https://iopscience.iop.org/article/10.1088/1538-3873/aa72c3/pdf |doi=1 ...

...G.W. Walker<ref>Walker, George W. "Some problems illustrating the forms of nebulae." Proceedings of the Royal Society of London. Series A, Containing Papers o ...

[[Category:Emission nebulae]] ...

...Pinwheel Outflow from the Extreme Carbon Star, AFGL 3068|journal=Planetary Nebulae in Our Galaxy and Beyond|volume=234|pages=469|last1=Morris|first1=Mark|last [[Category:Protoplanetary nebulae]] ...

...Louis Emil Dreyer]], compiler of the first ''[[New General Catalogue]] of Nebulae and Clusters of Stars'', described NGC 681 as being a "pretty faint, consid ...

...title=A relation between distance and radial velocity among extra-galactic nebulae|journal=Proceedings of the National Academy of Sciences|date=1929|volume=15 ...

...access=free }}</ref> of a linear redshift/distance relation for the spiral nebulae, Einstein extracts from his model estimates of ''ρ'' ~ 10⁻²⁶ g/c ...

...">{{cite journal | last=Dreyer | first=J. L. E. | title=Index Catalogue of Nebulae found in the years 1888 to 1894, with Notes and Corrections to the New Gene ...

...0L|arxiv = 1403.5298|title = Nature Versus Nurture: Luminous Blue Variable Nebulae in and Near Massive Stellar Clusters at the Galactic Center|journal=The Ast ...5 ly) and a mass of {{solar mass|6.2}}.<ref name=survey/> Since comparable nebulae typically last no more than 10,000 years, V4998 Sagittarii is presumed to h ...

...ects using this technique, including [[globular clusters]] and [[planetary nebulae]]. Some of those objects were not visible at all on blue light (250–500&nbs ...th its companion spiral galaxy [[Maffei 2]], while searching for [[diffuse nebulae]] and [[T Tauri star]]s.<ref name=Fingerhut2003/> The object had an apparen ...

...165|bibcode=2010A&A...511A..58D|issn=0004-6361|doi-access=free}}</ref> The nebulae of both Westerlund 1-20 and Westerlund 1 W26 are extended outward from the ...

...rgiant-like stars with infrared excesses as candidates for proto-planetary nebulae|journal=Astrophysical Journal|volume=346|pages=265|last1=Hrivnak|first1=Bru ...A...458..173S |title=A spectroscopic atlas of post-AGB stars and planetary nebulae selected from the IRAS point source catalogue |last1=Suárez |first1=O. |las ...

...and increasing radius accounting for the radial velocity of extra-galactic nebulae |title=A relation between distance and radial velocity among extra-galactic nebulae ...

...75 is surrounded by extended nebula, although it appears less massive than nebulae around typical red supergiant stars.<ref>{{cite journal |doi=10.1093/mnrasl ...

...title=A relation between distance and radial velocity among extra-galactic nebulae|journal=Proceedings of the National Academy of Sciences|date=15 March 1929| ...st3=Sandage |first3=A. R. |title=Redshifts and magnitudes of extragalactic nebulae |journal=The Astronomical Journal |date=April 1956 |volume=61 |page=97 |doi ...

...atmosphere on [[Titan (moon)|Titan]] and the gas clouds that are within [[nebulae]] and the confines of dying stars.<ref>{{cite journal|last1=Chen|first1=W.| ...