Examples of 'planetary nebulae' in a sentence
Meaning of "planetary nebulae"
Planetary nebulae are glowing shells of gas and dust that surround dying stars in the late stages of their evolution. Despite their name, they have nothing to do with planets. Planetary nebulae are formed when certain types of stars, such as red giants, shed their outer layers of material into space, creating beautiful and intricate structures that can be observed using telescopes
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- plural of planetary nebula
How to use "planetary nebulae" in a sentence
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planetary nebulae
He also studied and classified planetary nebulae.
Planetary nebulae with asymmetrical wings of nebulosity are common.
The physics and dynamics of planetary nebulae.
Observations of some planetary nebulae display similarly directed outflows.
A catalogue of narrow band images of planetary nebulae.
Central stars of planetary nebulae are typically hot and compact.
It is the brightest of the far southern planetary nebulae.
Our understanding of what planetary nebulae truly are has improved accordingly.
The following is an incomplete list of known planetary nebulae.
The central stars of planetary nebulae are very hot.
Let us take a look at some of the shapes of planetary nebulae.
Planetary nebulae are similar to planets when they are observed through a telescope.
Astronomers call these planetary nebulae.
All the planetary nebulae in which buckyballs have been detected are rich in hydrogen.
Interferometric study of planetary nebulae.
See also
Stars that form planetary nebulae typically live for billions of years.
Catalogue of galactic planetary nebulae.
Planetary nebulae are more than just beautiful shapes that grace our galactic skies.
It is one of the smallest galaxies in which planetary nebulae have been observed.
Ancient planetary nebulae are often distorted in shape due to interactions with the interstellar medium.
The hourglass shape is made visible in many beautiful planetary nebulae.
The filters are also used to study planetary nebulae and excited gas in other galaxies.
Towards an improvement in the spectral description of central stars of planetary nebulae.
The remains of their ejected mass form the planetary nebulae observable throughout our galaxy.
Nova remnants are much less massive than supernova remnants or planetary nebulae.
Planetary nebulae are actually the remains of stars that once looked a lot like our sun.
This diagram is a good tool to separate symbiotic stars and planetary nebulae.
Planetary nebulae and the future of the Solar System.
Stardeath spreads all those elements to space through planetary nebulae or supernova explosions.
Planetary nebulae were found by visual spectroscopy at Dun Echt and during an Andes expedition.
The structure in the nebula is among the most complex ever observed in planetary nebulae.
List of planetary nebulae List of NGC objects.
Magnetic interactions with ionized gas could be responsible for shaping some planetary nebulae.
Planetary nebulae are fairly short-lived stellar phenomena.
The expanding outal layers of the Sun called planetary nebulae.
Some planetary nebulae glow green, especially if they contain oxygen.
The final fate of the AGB envelopes are represented by planetary nebulae PNe.
Planetary nebulae are objects … that have nothing to do with planets, as it turns out.
These lines are important to the energy balance of planetary nebulae and H II regions.
Of planetary nebulae do not have a spherical shape ; instead forming bipolar or elliptical nebulae.
Concentrated levels of O III are found in diffuse and planetary nebulae.
Planetary nebulae are generally faint objects, and none are visible to the naked eye.
This results in beautiful, expanding clouds of material that astronomers call planetary nebulae.
Eventually, planetary nebulae fade to nothing as their gas and dust diffuse into space.
Until recently, it was thought that such shells around planetary nebulae were a rare phenomenon.
Most planetary nebulae show this bipolar appearance, although some appear nearly spherical.
The butterfly-like wings of gas and dust are a common shape of planetary nebulae.
This ejection of mass is uneven, and planetary nebulae can have very complex shapes.
Planetary nebulae are observed in more distant galaxies, yielding useful information about their chemical abundances.
Among his biggest contributions was the discovery of a type of planetary nebulae named Herbig-Haro objects.
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Examples of using Planetary
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This makes a planetary alignment of great potency
Linked with every other planetary life
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Examples of using Nebulae
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Some nebulae are what are called reflection nebulae
He also studied and classified planetary nebulae
That spiral nebulae were swirling masses of stars
