absolute magnitude

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Words related to absolute magnitude

(astronomy) the magnitude that a star would have if it were viewed from a distance of 10 parsecs (32

References in periodicals archive ?
The comet's brightness at the discovery return may have been due to a fragmentation event, as the absolute magnitude of the asteroid is very much fainter.
We find that accrual quality is negatively related to the absolute magnitude of accruals, the length of the operating cycle, loss incidence, and the standard deviation of sales, cash flows, accruals, and earnings, and positively related to firm size.
By knowing the distance and apparent magnitudes at different wavelengths, one can compute absolute magnitudes and the total light output of these objects.
The absolute magnitudes of warp deformation were an order of magnitude lower and of opposite polarity (concave down) relative to the CuMoCu structures, and were in 10 percent agreement with profilmetric measurements.
Detection altitude (km) = [-2.35 x (Absolute magnitude)] + 91.9
Discovered on September 18, 2006, the explosion peaked at a staggering absolute magnitude of -22, roughly a hundred times more luminous than a typical core-collapse supernova (S&T: April 2007, page 14).
They are also quite similar physically, having absolute magnitudes of -7.5 and -7.3, respectively.
Different types of supernovae have different absolute magnitudes and rates of decline from maximum brightness.
It has particular relevance to the determination of asteroid magnitudes, and hence absolute magnitudes, where the choice of comparison stars varies from night to night as the asteroid tracks across the sky, and the proximity to stars having well-defined magnitudes, e.g.
Knowing absolute magnitudes makes plain how vastly diverse are the objects that we lump together under the word "star." The maps of Orion and Canis Major on the previous page illustrate differences between the apparent and absolute magnitudes of some familiar naked-eye stars.
Therefore, I generally adopted the stars' absolute magnitudes, derived from spectral type, that are listed in the second edition of Sky Catalogue 2000.0, Vol.
Combined with new determinations of the absolute magnitudes of RR Lyraes, the result gives a new and independent distance for M31, one of the crucial rungs of the "cosmic distance ladder." (The revised value is 2.5 million light-years.)
As a check on the formula's validity, I found an excellent reference source for diameters, absolute magnitudes, and albedos.
A star's absolute magnitude is defined as how bright it would appear if it were placed 10 parsecs (32.6 light-years) away.
Under these same conditions (which define such object's absolute magnitude), much-fainter periodic comets like 2P/Encke would be no brighter than magnitude 11.