Sentences with phrase «of bright nebulae»

There are two types of bright nebulae that are associated, not with star birth, but with star death.

This map of bright nebulae in the constellation of Orion shows how the Orion Nebula (M42) is only a small part of a large collection of bright nebulae.

Dark nebulae can be seen if they obscure part of a bright nebula (eg.

The Lagoon nebula is one of the brightest nebulae in the sky and it can be seen with the naked eye.

Not exact matches

«NGC6778,» adds another of the authors, Hektor Monteiro, of the University fo Itajubá, Brazil, «is one of the planetary nebulae with the brightest recombination lines.

SHINE BRIGHT Supernova 1987A shone as a brilliant point of light near the Tarantula Nebula (pink cloud) in the Large Magellanic Cloud, as pictured from an observatory in Chile.

More accurate distances between the most common type of «planetary nebulae» and the Earth can be estimated simply with three sets of data: firstly, the size of the object on the sky taken from the latest high resolution surveys; secondly, an accurate measurement of how bright the object is in the red hydrogen - alpha emission line; and thirdly, an estimate of the dimming toward the nebula caused by so called interstellar - reddening.

This huge, dusky object forms a conspicuous silhouette against the bright, starry band of the Milky Way and for this reason the nebula has been known to people in the southern hemisphere for as long as our species has existed.

Its 5 inch aperture ensures that it gathers plenty of light for great views of the planets and Moon, as well as brighter galaxies, nebulae, and star clusters.

Four stars collectively called the Trapezium form the center of the nebula, which to our eye looks like the brightest star in the sword of Orion.

The three bands then correspond to the galactic center of a galaxy in the Hubble field and the interacting galaxy, the center of a bright star in the Magellanic cloud and a star cluster and the last band corresponds to the white dwarf in the Helix and Cat's eye nebulae.

At the time, the limited telescopic power available to Herschel, who was observing visually, only allowed him to document the brightest «toepad» of the Cat's Paw Nebula.

This nebula is visible as the bright blue object just to the left of the cluster's centre.

Astronomers have scrutinized about 100 nebulas for signs of a small, faint companion amid the glare of the bright core, but so far, in some five out of six cases they've come up empty.

Picture distant blue stars brighter than the full moon at night, shining through the spidery veins of dust and gas that hang through the nebula like cobwebs.

Soon it collides with the slower, cooler gas ahead of it, piling it up into a bright, dense cloud called a planetary nebula.

About 4,500 light - years away in the direction of the constellation Monoceros, the nebula is large enough to be visible through small telescopes; if it were bright enough in the visible spectrum it could be seen by the naked eye, occupying several times as much of the sky as the full moon.

These are fast - moving knots of bright gas that seem to be shielded somehow from the harsh radiation of a nebula's dying star.

Bright spots in the map include the Crab Nebula, which hosts a radiation - spewing stellar corpse called a pulsar, and several blazars, violent active galaxies where colossal black holes accelerate particles to more than 99 % the speed of light.

PSU postdoctoral researcher Matt Povich showed how a broad swath of dust [infrared imagery, red in image above] obscures many of the biggest, brightest stars in the nebula in visible light.

A bright young star called V380 Orionis (upper left) illuminates the nebula - except for where a cold cloud of gas and dust is so dense that it blocks all light behind it.

The three bright stars at the upper right are the belt of the constellation Orion, and the Orion nebula is at the lower right.

Called an «enormous Lyman - alpha nebula» (ELAN), it is the brightest and among the largest of these rare objects, only a handful of which have been observed.

Astronomers believe the bullets, which are about 10 times the size of our solar system, are clumps of iron atoms (bright blue tips) and other gas ejected from within the nebula after an unknown violent event.

«It's extremely bright, and it's probably larger than the Slug Nebula, but there's nothing else visible except the faint smudge of a galaxy.

Of particular interest is a star at the center of the nebula, just below the brightest region, whose intense light and furious winds appear to have driven out the local gas, forming a spherical void perhaps only 30,000 years agoquite recent, by astronomical standardOf particular interest is a star at the center of the nebula, just below the brightest region, whose intense light and furious winds appear to have driven out the local gas, forming a spherical void perhaps only 30,000 years agoquite recent, by astronomical standardof the nebula, just below the brightest region, whose intense light and furious winds appear to have driven out the local gas, forming a spherical void perhaps only 30,000 years agoquite recent, by astronomical standards.

Jonathan Tan of the University of Florida in Gainesville, Florida, though, has always eyed another suspect: Theta - 1 Orionis C, the brightest star in the Trapezium, a cluster which also lies in the Orion Nebula.

The central star in the Blinking Planetary Nebula (middle) is shedding mysteriously bright clumps of gas, which glow red.

Four of the five post-1000 supernovae are famous: A 1006 explosion in the southern sky was the brightest in recorded history; a 1054 supernova in the constellation Taurus spawned the well - known Crab Nebula; and supernovae in 1572 and 1604 bear the names of two Renaissance astronomers, Tycho (Brahe) and (Johannes) Kepler.

This picture shows the bright central region of this nebula which contains a very compact and very young cluster of stars.

M78 is only the brightest nebula in this picture, above it is NGC 2071, and the region to the right of M78 is NGC 2064 and NGC 2067.

While the bright part of the nebula is of about 65 arc seconds in diameter (more accurately, the «cork» is about 42x87», the «wings» 157x87»), this nebula is surrounded by a faint halo covering a region of 290 arc seconds in diameter (Millikan, 1974); this material was probably ejected in the form of stellar winds from the central star when it was still in the Red Giant phase of evolution.

This picture of the dramatic nebula around the bright red supergiant star Betelgeuse was created from images taken with the VISIR infrared camera on ESO's Very Large Telescope (VLT).

The nebula glows because of the radiation from the intensely hot, class O star, Xi Persei which is the brightest star in this picture.

Although it is very obscured, the bright central part of this nebula is visible to us.

Bright nebulae are usually vast concentrations of gas and dust in which stars have been or are being formed.

The very bright star on the right side of this map is Deneb - it is a supergiant star which may be at a similar distance as the nebula.

There are three main types of bright diffuse nebulae:

The Bug Nebula, NGC 6302, is one of the brightest and most extreme planetary nebulae known.

Also included in this list is the much more distant NGC 3603 nebula which is in the same area of the sky; this nebula is only the brightest part of an enormous nebulous region which probably extends over 1000 light years of space.

LBN stands for «Lynds Bright Nebula,» named after the astronomer who published a catalogue of nebulae in 1965.

The Crab Nebula, one of the most famous nebulae and seen here by the Hubble Space Telescope, is actually the expanding explosion of a core collapse supernova, the light of which was bright enough to be seen here on Earth in the year 1054 CE, as documented by Chinese astronomers at the time.

NGC 6910 and M29 (NGC 6913) are the two brightest star clusters in this region, and both of these star clusters formed in this nebula.

The second method is to plot the giant HII regions (bright nebulae of ionised hydrogen) which are usually formed in the spiral arms.

The Gamma Cygni nebula consists of the various pink patches which can be seen surrounding Gamma Cygni - the bright star in the middle of this photograph.

That the nebula is so much brighter than the star shows that the star emits primarily highly energetic radiation of the non-visible part of the electro - magnetic spectrum, which is absorbed by exciting the nebula's gas, and re-emitted by the nebula, at last to a good part in the visible light.

These bright tracers include globular star clusters, planetary nebulae (dying stars that glow like neon lights), and patches of glowing hydrogen gas.

Composite picture of the Cat's Eye Nebula (NGC 6543), combining three images taken by the Hubble Space Telescope.This planetary nebula has an unusually complicated structure, with concentric shells (seen as bright rings), jets (the projections at upper left and lower right), and a number of details that suggest complex interactions of shock Nebula (NGC 6543), combining three images taken by the Hubble Space Telescope.This planetary nebula has an unusually complicated structure, with concentric shells (seen as bright rings), jets (the projections at upper left and lower right), and a number of details that suggest complex interactions of shock nebula has an unusually complicated structure, with concentric shells (seen as bright rings), jets (the projections at upper left and lower right), and a number of details that suggest complex interactions of shock waves.

The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years.

There are a lot of nebulae (bright and dark) in this part of the sky because we are looking deep into our Galaxy in this direction.