Sentences with phrase «objects are faint»

Previous large - area searches have been incomplete for L / T transition dwarfs, because these objects are faint in optical bands and have near - infrared colors that are difficult to distinguish from background stars.

All of the thousands of brown dwarfs found so far are relatively close to the Sun, the overwhelming majority within 1500 light years, simply because these objects are faint and therefore difficult to observe.

Not exact matches

«We also found that it had a reddish color, similar to objects in the outer Solar System, and confirmed that it is completely inert, without the faintest hint of dust around it.»

The long strip of linen cloth known as the Turin Shroud, which bears the faint image of a crucified and beaten man, has been an enigma and an object of reverence for centuries.

As our mental fields succeed one another, each has its centre of interest, around which the objects of which we are less and less attentively conscious fade to a margin so faint that its limits are unassignable.

Tiny and very faint, this fast moving object (centre) was captured by astronomers as it passed through our Solar system.

It was not some mammoth new telescope that sussed out these faint objects.

That's because a bigger telescope will let in more light (meaning your eyes can see faint objects better).

Simply put, the object they seek is not only small but exceedingly faint compared with the blazing star nearby.

Hubble captured images of the galaxy in visible and infrared light, witnessing a new bright object within NGC 4993 that was brighter than a nova but fainter than a supernova.

Human eyeballs aren't the best detectors of faint and distant astronomical objects.

It's a mature object, not surrounded by the clumps of light - blocking debris that accompany stellar infants — and yet overall it has grown fainter over the past four years.

Though astronomers still do not know what kinds of events or objects produce FRBs, the discovery is a stepping stone for astronomers to understand the diffuse, faint web of material that exists between galaxies, called the cosmic web.

The findings could also prove useful in optical systems, such as microscopes and telescopes, for viewing faint objects that are close to brighter objects — for example, a faint planet next to a bright star.

We once thought that dark matter might be made up of large objects such as black holes or exotic types of faint stars — neutron stars or white dwarfs — that are nearly invisible to our telescopes.

Scientists have now had a first look at most of the survey area, but data from the next three years of the survey will likely allow them to find objects that are even fainter, more diffuse or farther away.

Many astronomers fear the additional mirror will degrade sensitivity, or the ability to see faint objects, because photons are lost with each reflection.

We also found that it has a dark red colour, similar to objects in the outer Solar System, and confirmed that it is completely inert, without the faintest hint of dust around it.»

XMM - Newton is on a distended orbit that takes it one - third of the way to the moon; this keeps it out of Earth's shadow long enough to stay pointed at — and collecting photons from — the same faint object for more than a day.

These initial observations suggested that the apparently faint object was in fact both extremely bright and extremely distant.

Two weeks out of every four are effectively lost because of moonlight: it severely limits observations of the deep sky and the measurement of light from faint objects.

If those objects are bigger than Jupiter, longer exposures with NICMOS could reveal them as faint points of light, notes team member Glenn Schneider of the University of Arizona in Tucson.

Though Hubble and Spitzer have detected other galaxies that are record - breakers for distance, this object represents a smaller, fainter class of newly forming galaxies that until now have largely evaded detection.

«Thanks to this detection, the team has been able to study for the first time the properties of extremely faint objects formed not long after the big bang,» said lead author Leopoldo Infante, an astronomer at Pontifical Catholic University of Chile (Pontificia Universidad Católica de Chile).

Some scientists are turning space telescopes towards the asteroid to continue observing this ever - fainter object as it speeds away, while others are searching along the calculated trajectory to find out where it came from.

«It's five times fainter than any other object detected with ground - based spectroscopy at this wavelength,» Skemer said.

The team used the Faint Object Camera and Spectrograph (FOCAS) mounted on the Subaru Telescope to thoroughly study the visible wavelength spectrum (Note 1) of the afterglow of a gamma - ray burst (GRB, Note 2), which is a violent explosion of a massive star.

Objects in the Kuiper Belt are difficult to detect because they are very faint.

«It's very difficult to see these faint moving objects in front of thousands and thousands of background stars,» Parker says.

Astronomers studying distant objects call these stars «foreground stars» and they are often not very happy about them, as their bright light is contaminating the faint light from the more distant and interesting objects they actually want to study.

Maybe it was just large accumulations of dim but familiar objects, like extremely faint red stars or white dwarfs, some astronomers speculated.

Still, the zodiacal light illuminates the heavens there and obscures faint objects; it is the main diffuse background at visible wavelengths.

This means that distant objects that otherwise would be too distant and faint to be seen become visible — something that Frontier Fields aims to exploit over the coming years.

In earlier observations, emission from two or more faint objects often was blurred or blended into what appeared to be a single, stronger source of radio waves.

However, the researchers pointed out, the remaining 4 percent of the radio emission could be coming from as many as 100 billion very faint objects.

Spitzer is able to do this as well, but Webb will be able to observe objects nearly 100 times fainter and with eight times greater spatial resolution.

Pérez - González said they will use the instrument to observe a section of HUDF in 5.6 microns, which Spitzer is capable of, but that Webb will be able to see objects 250 times fainter and with eight times more spatial resolution.

Faint objects like galaxies and globular clusters are clear to the naked eye from here; the night I visited, the night sky was bright enough to read by, the Milky Way was lit up like a celestial highway and faint meteors continually peppered the heaFaint objects like galaxies and globular clusters are clear to the naked eye from here; the night I visited, the night sky was bright enough to read by, the Milky Way was lit up like a celestial highway and faint meteors continually peppered the heafaint meteors continually peppered the heavens.

But when it has been working, the 10 - metre Keck Telescope, in Mauna Kea in Hawaii, has impressed astronomers with images and spectra of objects too faint to be detected by other telescopes.

Extreme adaptive optics also allows much fainter objects to be seen very close to a bright star.

Ground - based and orbiting telescopes employ exquisitely sensitive detectors to search for objects that are much farther away, and much fainter, than could have been detected just a few years ago.

This phenomenon increases the apparent brightness and angular size of the lensed objects, making it easier to study sources that would be otherwise too faint to probe.

The authors say that sky surveys had missed this object because it's too faint.

But this newly found galaxy is significantly smaller and fainter than most of those other remote objects detected to date.

«The discovery is telling us that galaxies as faint as this one exist, and we should continue looking for them and even fainter objects so that we can understand how galaxies and the universe have evolved over time.»

There are many smaller, fainter brown dwarfs too, so this could be a significant underestimate, and the survey confirms these dim objects are ubiquitous.

[4] Gravitational lensing magnifies the light from fainter, background objects, allowing Hubble to spy galaxies it would otherwise not be able to detect.

The term is a misnomer: Observing a number of vaguely round, cloudlike objects in the sky during the late 18th century, Sir William Herschel thought they resembled faint planets.

One such object, A1689 - zD1, is located in the box — although it is still so faint that it is barely seen in this picture.

There are also two cameras - one which can achieve image resolutions 10 times greater than that of even the largest Earth - based telescope, and a second which can detect an object 50 times fainter than anything visible from Earth.