... fields. There is no other constellation quite like it. 1 07 P. Moore, The Sky at Night, DOI 10.10 07/ 978 -1-4419-6409-0_ 27, â Springer Science+Business Media, LLC 2010In October 20 07, the great radio ... conditions, with the radiant at the zenith or overhead point. In practice, these conditions are never attained, so that the observed rate is always less than the theoretical ZHR).There are three ... end-of -the world scare then – but don’t blame the Perseids! 103P. Moore, The Sky at Night, DOI 10.10 07/ 978 -1-4419-6409-0_26, â Springer Science+Business Media, LLC 2010Everybody is fascinated...