Save This Word!
astronomy the magnitude of a star as determined by visual observationCompare photoelectric magnitude
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use visual magnitude in a sentence
The photographic magnitude of a star will in these lectures be denoted by m′, corresponding to a visual magnitude m.
The following table contains all stars the apparent visual magnitude of which is brighter than 1m.5.
Sirius and Canopus are the only stars in the sky having a negative value of the apparent visual magnitude.
The bluer the star, the brighter will be its photographic as compared with its visual magnitude.