영어에서 Planetary nebula 을 사용하는 예와 한국어로 번역
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Planetary nebulae.
The Abell Catalog of Planetary Nebulae.
Planetary Nebula Abell 36.
Wondering about planetary nebula.
A"planetary nebula" has nothing whatsoever to do with planets.
The Abell Catalogue of Planetary Nebulae.
This image shows the planetary nebula NGC 2440, which contains one of the hottest white dwarfs known.
This type of object is called a'planetary nebula'.
M57, the Ring Nebula, a planetary nebula in the constellation Lyra.
Only in 1918, for the first time, Heber D. Curtis classified it as a planetary nebula.
Astronomers saw that all planetary nebula are expanding.
This ejected material formed an immense cloud of material called a planetary nebula.
Title: The mysterious cut-off of the Planetary Nebula Luminosity Function.
Also like many planetary nebulae, NGC 6164 has been found to have an extensive, faint halo, revealed in this deep telescopic image of the region.
Butterfly emerges from stellar demise in Planetary Nebula NGC 6302.
In planetary nebulae, the brightest of these spectral lines was at a wavelength of 500.7 nanometres, which did not correspond with a line of any known chemical element.
Other objects commonly observed in ultraviolet light include planetary nebulae, supernova remnants, and active galactic nuclei.
Discovered by Karl Ludwig Harding, likely before 1824, this object is one of the closest to the Earth of all the bright planetary nebulae.
The Helix Nebula, also known as NGC 7293, is a large planetary nebula(PN) located in the constellation of Aquarius.
This pretty planetary nebula, cataloged as NGC 6369, was discovered by 18th century astronomer William Herschel as he used a telescope to explore the constellation Ophiucus.
Source: The mysterious age invariance of the cut-off the Planetary Nebula Luminosity Function.
In the late 1970s, scientists studying the planetary nebula called NGC 7027 thought that this environment might be just right to form helium hydride.
Their study, titled“The mysterious age invariance of the cut-off the Planetary Nebula Luminosity Function“.
It was the first planetary nebula whose spectrum was investigated by the English amateur astronomer William Huggins, demonstrating that planetary nebulae were gaseous and not stellar in nature.
As a special and famous feature which is also obvious in the above image, a planetary nebula(NGC 2438) appears within the apparent borders of M46.
It was discovered as part of theNational Geographic Society-Palomar Observatory Sky Survey in the 1950s, and was recorded in the Abell Catalogue of Planetary Nebulae in 1966.
The asymptotic-giant-branch phase ends with the ejection of its outer layers as a planetary nebula, leaving the dense core of the Sun behind as a white dwarf.[107][117].
This phase lasts about 30Â million years, after which, over the course of a further 100,000Â years, the Sun's remaining outer layers will fall away, ejecting a vast stream of matter into space and forming a halo known(misleadingly) as a planetary nebula.
Instead, at the end of the asymptotic-giant-branch phase the star will eject its outer layers, forming a planetary nebula with the core of the star exposed, ultimately becoming a white dwarf.
In many planetary nebulae, molecular emission is greatest at larger distances from the star, where more material is un-ionised, but molecular hydrogen emission in NGC 6543 seems to be bright at the inner edge of its outer halo.