These same visible lines, accompanied by the emission lines of trivalent europium and trivalent terbium, and further accompanied by the emission continuum of divalent europium in the blue region, comprise the more discontinuous light emission of the modern trichromatic phosphor systems used in many compact fluorescent lamp and traditional lamps where better color rendition is a goal.

Deflection of light ( sent out from the location shown in blue ) near a compact body ( shown in gray )

An atomic nucleus is a compact bundle of the two types of nucleons: Proton s ( red ) and neutron s ( blue ).

There are, amongst others, weeping, variegated, pygmy, blue, grass green, and compact forms.

The compact object and blue supergiant star form a binary system that orbit around their center of mass every.

Note that Leonardo, in his notebooks, cited red, yellow, green and blue ( along with white and black ) as the " painter's primaries ", though he may not have had a specific palette in mind ; but replacing the cyan paint with a deep blue paint ( such as ultramarine blue ), and adding a green paint, greatly improves the saturation of both purple and green mixtures in a compact four paint selection, and allows a dark neutral or black to be mixed directly, using only red and green.

An important research of Hambardzumyan and his followers was dedicated to the blue ejections from the nuclei of the gigantic galaxies, galaxy systems of new type, the so called compact galaxies, etc.

This diagram compares the wide dispersion of the Pasiphaë group ( red ) with the more compact Ananke ( blue ) and Carme ( green ) groups.

Applications for electrically pumped VECSELs include frequency doubling of near-IR VECSEL emitters to attain compact powerful sources of single-mode blue and green light for projection display purposes.

Deflection of light ( sent out from the location shown in blue ) near a compact body ( shown in gray )

*' Fat Albert ' - compact perfect cone to of a silver blue color.

These are compact roof structures that combine the two blue lights, sirens, and possibly several additional issues.

* AM CVn, a very blue star of magnitude 14, is the prototype of a special class of cataclysmic variable stars, in which the companion star is a white dwarf, rather than a main sequence star.

However, for hotter blue and white stars, the size and brightness difference between so-called dwarf stars that are on the main sequence and the so-called giant stars that are not becomes smaller ; for the hottest stars it is not directly observable.

Depiction of Haumea ( dwarf planet ) | Haumea's presumed 7: 12 resonance with Neptune in a rotating frame, with Neptune ( blue dot at lower right ) held stationary.

If it does, it will develop into a red giant as described for mid-sized stars below, but never fuse helium as they do ; otherwise, it will simply contract until electron degeneracy pressure halts its collapse, becoming first a blue dwarf and then a white dwarf.

In theory, hydrogen-fusing dwarf stars of 10 to around 60 Solar-masses first evolve as spectral type O to become blue supergiants and then progress to become red supergiants ( type M ).

The discovery of low-mass white dwarf companions around two blue stragglers in the Kepler field suggests these two blue stragglers gained mass via stable mass transfer.

Astronomers initially ruled out the possibility that some of the point-like objects are white dwarfs, because they are too blue to be consistent with theories of white dwarf evolution prevalent at the time.

* A blue dwarf is a hypothesized class of very low-mass stars that increase in temperature as they near the end of their main-sequence lifetime.

These stars, the massive and middle-aged blue giants, represent a transitory phase where the star is either to become a bright giant ( and eventually a planetary nebula and massive white dwarf ) or a supergiant ( and eventually a supernova or rare oxygen-neon white dwarf ) and no star remains as this kind of blue giant for very long.

Other blue giants are merely misclassified hydrogen fusing dwarf stars, such as Spica or the Pleiades, their exceptional brightness making earlier astronomers believe they were elderly giants and the classification has simply stuck.

Blue giants should not be confused with blue supergiants such as Rigel or ordinary hydrogen-fusing O to B stars such as Regulus which is a main sequence dwarf star.

Four species ( C. lawsoniana, C. obtusa, C. pisifera, and C. thyoides ) are of considerable importance as ornamental trees in horticulture ; several hundred cultivars have been selected for various traits, including dwarf size, yellow, blue, silvery or variegated foliage, permanent retention of juvenile leaves, and thread-like shoots with reduced branching.

Charn's Sun is a red giant described as red, large, and cold ; it also has a solitary companion ( either a planet, or a moon, or a blue dwarf star ).

* S07: A blue dwarf star, similar to a neutron star.

The anonymous author, or ' blue dwarf ,' as he styled himself ,' claimed to have perused archive files, and even to have sampled one or two brands of scotch in the Commissioner's office.

The primary ( Alnitak A ) is itself a close binary, comprising Alnitak Aa ( a blue supergiant of spectral and luminosity type O9. 7 Ibe, with an absolute magnitude of-5. 25 and an apparent magnitude of 2. 0 ) and Alnitak Ab ( a blue dwarf of spectral and luminosity type O V, with an absolute magnitude of about-3. 0 and an apparent magnitude of about 4, discovered in 1998 ).

For example, a blue type O dwarf star is brighter than most red giants.

The dwarf blue sheep ( P. schaeferi ) is sometimes considered to be a subspecies of the bharal.

This artist ’ s impression shows the expected distribution of dark matter in the Milky Way galaxy as a blue halo of material surrounding the galaxy.

Several million years ago, it collided with a smaller galaxy, which created a region filled with young, hot, blue stars.

The blue synchrotron radiation of the jet contrasts with the yellow starlight from the host galaxy.

In general elliptical galaxies appear yellow-red, which is in contrast to the distinct blue tinge of a typical spiral galaxy, a colour emanating largely from the young, hot stars in its spiral arms.

They may represent a local ( and therefore more recent ) version of the faint blue galaxies known to exist in deep field galaxy surveys.

False-colour image of the nearby radio galaxy Centaurus A, showing radio ( red ), 24-micrometre infrared ( green ) and 0. 5-5 keV X-ray emission ( blue ).

This plot illustrates the Tully-Fisher relation for a spiral galaxy sample ( black ) as well as a lenticular galaxy sample ( blue ).

Walter Baade discovered young blue objects within this galaxy in 1951, but these have turned out to be star clusters and not individual stars.

Cluster 1806-20 is made up of some highly unusual stars, including at least two carbon-rich Wolf – Rayet stars ( WC9d and WCL ), two blue hypergiants, and LBV 1806-20, one of the brightest / most massive stars in the galaxy.

The faint blue galaxy ( F. B. G.

But there are small clusters of young, hot, blue stars on the outer areas of the galaxy.

** ( 1-46 ): He was probably the best swordsman in the galaxy, white-maned in white armor over blue tights.

It is a hypergiant luminous blue variable ( LBV ) star of spectral type B1Ia + that is one of the most luminous stars in the Milky Way galaxy.