total magnitude

total magnitude

(integrated magnitude) A measure of the brightness of an extended object, such as a galaxy or nebula, obtained by summing the surface brightness over the entire image area or by measuring the amount of light received through a series of apertures of increasing diameter with a photoelectric photometer. The readings are found gradually to approach an upper limiting magnitude, which, corrected for night-sky brightness, gives the total magnitude.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
References in periodicals archive ?
Accordingly, the total magnitude of the benefit conferred by a satisfied desire is reined in by that desire's strength.
"In this experiment, the total magnitude of data communicated to Google servers from an iOS device is found to be approximately half of that from the Android device."
Actually generalized seismicity must display the integrated parameters of earthquakes that is the total magnitude or earthquakes power having appeared in a certain area for a certain period of time (Yokoyama and Nazzaro, 2002; Stenmark, 2014).
The rich open cluster NGC 7789 in Cassiopeia, about 8,000 light-years away, has a total magnitude of 6.7.
The total magnitude of suffering associated with flu is more difficult to quantify but anecdotes can be illuminating.
The magnitude given is the total magnitude of the coma and the brightness is spread out across the whole diameter of the comet.
Similarly, while the monthly cash payment to individuals was rather meager at IR455,000 (compared to the legal minimum monthly wage of lR4.9mn), the total magnitude of cash outlays was not accurately assessed, and in retrospect, it was set too high.
Using the V magnitudes for the clusters from Harris's list (7.8 and 9.8 respectively) he arrived at a magnitude of 7.5 for the comet, almost in exact agreement with the total magnitude at that date in Figure 1.
CCD observers are encouraged to report total magnitude estimates, using the format given in the BAA Observing Guide and the methodology developed by Roger Dymock.
"Its brightness of a total magnitude of 13.4 visual, which is about 900 times fainter than the faintest star you can see in a clear, dark sky, led me to suspect that it was a known comet, but I checked the comet database and got nothing," said Larson.
The total magnitude of the force multiplied by the cosine of its angle with the horizon calculates the horizontal force.

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