One of the most notable of these dark absorption nebulae is a cloud toward the constellation Ophiuchus known as Barnard 68, pictured above. |
|
Be warned that first-timers can find it difficult to appreciate galaxies, globular clusters, and planetary nebulae. |
|
The reason why most planetary nebulae are not spherical is not well understood. |
|
Until recently, it was thought that shells around planetary nebulae were a rare phenomenon. |
|
He began to classify all the known nebulae and to measure their velocities from the spectra of their emitted light. |
|
Then Edward Hubble discovered that the nebulae were other galaxies like ours only much further away than was thought possible. |
|
It circles between two stars in a binary system, wavering in and out of nebulae, carrying its on rings like Saturn. |
|
It is a nebulae system, planets and stars bobbing in and out of blue, purple, and pink stardust. |
|
More distant nebulae and galaxies require longer exposure times, and more fiddling. |
|
Sometimes known as absorption nebulae these are dark concentrations of gas and dust which often have stars forming inside them. |
|
A planetary nebula forms when Sun-like stars gently eject their outer gaseous layers to form bright nebulae with amazing twisted shapes. |
|
The camera pans across a galaxy of stars and planets, novae, and nebulae twinkling in the blackness. |
|
In the inner regions of dark nebulae important events take place, such as the formation of stars and masers. |
|
One way that astronomers classify planetary nebulae is by the number of axes that they contain. |
|
The burning nebulae are jewels that fell from his garments and scattered as he passed by. |
|
It can also obtain thousands of spectra of individual parts of extended objects such as galaxies or nebulae. |
|
In it you will find photographs of fabulous planets but also astounding views of nebulae and galaxies that can be viewed only from outer space. |
|
Caroline also compiled catalogs of star clusters and nebulae. |
|
Were the nebulae really all star systems at vast distances from Earth, or were there also regions of true nebulosity, clouds of luminous fluid? |
|
Planetary nebulae form during the death throes of low-mass stars, such as the Sun, as the star's outer layers are slowly ejected. |
|
|
Further work by Hubble with Cepheid variables in other spiral nebulae confirmed the island-universe theory. |
|
Relax in a lawn chair and gaze at Bettina Forget's paintings of night skies bejewelled with star clusters, nebulae, and galaxies. |
|
These schematized formations recall aerial ballets, spiraling nebulae or orbiting planets, tracings of tiny fireballs, even measles and skin rashes. |
|
Given a Milky Way Galaxy system of limited scale, Curtis could argue for and consider plausible the extragalactic nature of the spiral nebulae. |
|
It is the kundalini that fissions suns and the the flux of galactic nebulae. |
|
It is indeed likely that a substantial amount of gas from the initial nebulae was still present as planetesimal accretion started. |
|
Active star formation takes place in the disk of our own Milky Way Galaxy inside special types of dense nebulae called molecular clouds. |
|
Bright nebulae are comparatively dense clouds of gas within the diffuse interstellar medium. |
|
Planetary nebulae are important sources of the gas in the interstellar medium. |
|
The Cat's Eye Nebula lies in the constellation of Draco and is one of the most complex planetary nebulae ever seen. |
|
Such planetary nebulae form when red-giant stars blow ionised gas outward as they transition to white dwarfs. |
|
They came to be called planetary nebulae because through small telescopes they look rather like planets. |
|
This spectacular shot taken by CFHT shows obscure nebulae inside of which stars are formed, as well as a small cluster of new stars. |
|
A reflection nebula simply reflects the light of nearby stars and is more faint and less common than emission nebulae. |
|
These patches were called nebulae, and their nature was not fully realized by astronomers. |
|
Planetary nebulae are roughly circular in shape and are caused by the death of a low mass star which ejects its outer layers of gas. |
|
For her work on the chemical composition of nebulae which is fundamental to our understanding of the origin of the universe. |
|
Edwin Hubble quickly began a detailed study of the spiral nebulae. |
|
I can see the stars outside, the swirling patterns of distant nebulae. |
|
It was only in the 1920's that the American astronomer Hubble established that some of these nebulae were indeed distant galaxies comparable in size to our own Milky Way. |
|
|
Hubble's discovery showed that spiral nebulae are entire systems of stars in their own right, as huge and as packed with stars as our own Milky Way. |
|
Galaxies and nebulae are often enormous spirals floating in outer space. |
|
These nebulae, now known to be spiral galaxies like the Milky Way, were usually thought to represent the early stages of formation of structures like our Solar System. |
|
Dr. Kwok is an expert in the study of the late stages of stellar evolution, and is best known for his theory on the formation of planetary nebulae. |
|
Herschel was also an accomplished telescope builder, and spent much of his time observing the sky looking for double stars and nebulae. |
|
From a little bubbling lava, from the vague pulp of a star, from a living cell miraculously fertilized, we have issued forth and have bit by bit raised ourselves to the writing of cantatas and the weighing of nebulae. |
|
Their distance established spiral nebulae well beyond the edge of the Milky Way. |
|
Other objects commonly observed in ultraviolet light include planetary nebulae, supernova remnants, and active galactic nuclei. |
|
The audience was engaged by the astrophysics and indeed the visual glamour of Wolf-Rayet stars and their associated nebulae. |
|
Such are the facts that can be gleaned from an utterly delightful data visualisation created by Michael and Cary Huang, which allows you to fly through space comparing the size of everything from neutrinos to nebulae. |
|
Typically, planetary nebulae are a few tenths of a light-year in radius. |
|
Other bright clouds are reflection nebulae, which are lit by cooler stars and reflect light towards us. |
|
Radio telescopes are used to image planetary surfaces hidden beneath thick clouds, and can determine the presence of background stars located behind dark nebulae. |
|
In fact it was this telescope that helped Lord Rosse decipher spiral structure in the nebulae and led to his conclusion that some of the nebulae were more than just gas clouds. |
|
While planetary nebulae are generally circular in appearance, other nebulae can be virtually any shape depending on the arrangement of the gases which are the source of the nebula. |
|
Circinus also offers a dark and reflection nebulae in its circle of elusive objects. |
|
During the oral relay, team members each answered five questions on astronomy topics such as black holes, spiral nebulae and red giants. |
|
Lost in the cage of measurability, the open clusters that our digital bodies have become swirl away into nebulae of gas and dust. |
|
The data thus collected should allow the process of planet formation to be followed from beginning to end. Dating early galaxies and the study of circumstellar nebulae are triumphs for Spitzer alone. |
|
Research studies pertaining to deep space objects including galaxies, nebulae and variable stars are also being initiated. |
|
|
The solar system passes through or close to star-forming nebulae occur every 100 million years or so, and these life-bearing particles will be injected directly into protoplanetary systems. |
|
Was it really so rare for a reflection nebula to find itself close to such a star, or were many more variable nebulae waiting to be found? |
|
Some rare planetary nebulae, like NGC 3242 and J 320, preserve the helium 3 that they produced when they were young, while the majority of stars destroy that element before dying. |
|
The arms are more lumpy with bigger pieces of matter almost thicker looking because of the distributed star clouds, star clusters, and gas clouds known as emission nebulae. |
|
A few emission nebulae are situated towards the north-west fringes of the cloud, an area which latterly has been covered in nebulosity. |
|
Galaxies, nebulae, and star clusters abound! |
|
Curtis argued for the idea that spiral nebulae were star systems in their own right as island universes. |
|
It lists open and globular star clusters, diffuse and planetary nebulae, supernova remnants, galaxies of all types and even some erroneous entries corresponding to no objects at all. |
|
The problem is that galaxies, nebulae, white dwarfs and any other number of cosmic objects lie light-years away from Earth and capturing these images can be a difficult task. |
|
The liberation of nuclear energy, though in a still anarchic form, has let loose a blinding light, the light of the new worlds, which in a space in perpetual evolution emerge from the nebulae. |
|
These emission nebulae may contain stars in the process of forming, or stars that have just recently formed. |
|
Light from the star shining on the inside of this cavity is believed to be the source of illumination of the fan-shaped reflection nebulae which we typically see. |
|
Reports from star surveys update the search for Wolf-Rayet stars, O stars, galactic star clusters, massive star nebulae, and luminous blue variable stars. |
|
Prior to the discovery of V1 many astronomers, including Harlow Shapley, thought spiral nebulae, such as Andromeda, were part of our Milky Way Galaxy. |
|