Приклади вживання Planetary nebulae Англійська мовою та їх переклад на Українською
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Planetary nebulae.
This conundrum comes to light when studying planetary nebulae like IC 4406.
Many planetary nebulae have extremely complex and varied morphologies.
The Cat's Eye Nebula(NGC 6543) is one of the most well-known planetary nebulae.
Call Them planetary nebulae not because they have some relationship to the planets.
They believe that such interactions dominate the formation process in planetary nebulae.
Young planetary nebulae have the highest densities, sometimes as high as 106 particles per cm³.
The Cat's Eye Nebula(NGC 6543)is one of the best known planetary nebulae in the sky.
M27 is one of the brightest planetary nebulae on the sky, and can be seen in the constellation Vulpecula with binoculars.
Cat's Eye Nebula(NGC 6543)is one of the best known planetary nebulae in the sky.
Planetary nebulae[1] are glowing shells of gas around white dwarfs Sun-like stars in the final stages of their lives.
The Cat's Eye Nebula(NGC 6543)is one of the best known planetary nebulae in the sky.
M27 is one of the brightest planetary nebulae on the sky, and can be seen toward the constellation of the Fox(Vulpecula) with binoculars.
Jets are outflows of very fast-movinggas that are ejected from the core regions of planetary nebulae.
Old, low massstars should make much fainter planetary nebulae than young, more massive stars.
Unseen binaries have also been suggested as an explanation for theodd shapes seen in related objects, planetary nebulae.
Thus, the presence of this gas is observed even in some planetary nebulae and in the composition of some stars.
In particular, the presence of the green glow from doubly ionised oxygen([O III])is used as a tool for spotting planetary nebulae.
About 25 years ago, astronomers noticed something peculiar:the brightest planetary nebulae in other galaxies have roughly the same level of brightness.
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.
Prof Zijlstra adds:“Old,low mass stars should make much fainter planetary nebulae than young, more massive stars.
Though the Cat's Eye Nebula was one of the first planetary nebulae to be discovered, it is one of the most complex such nebulae seen in space.
The group also carries out research at different wavelengths,looking into star formation and evolution, planetary nebulae and astrochemistry.[52].
Around 25 years ago, astronomers noticed something peculiar:the brightest planetary nebulae in other galaxies all have about the same level of brightness.
This study now confirms that precessing accretion discs within binarysystems cause the stunningly symmetric patterns around planetary nebulae like Fleming 1.
Approximately 25 years ago, astronomers discovered that if you look at planetary nebulae in another galaxy, the brightest ones always have the same brightness.
Thanks to this, even small stars, who's mass is comparable to solar,can generate bright planetary nebulae, close to the maximum of their luminosity.
Stars with masses like the Sun and up to eight times that of the Sun,will form planetary nebulae as they enter the final phase of their existence.
Because of this, even small stars whose mass is comparable to the sun,can produce bright planetary nebulae close to the maximum of their luminosity.
Although much is still to be understood,there are two leading theories of bipolar planetary nebulae, both relying on the existence of a binary star system.