11.06.2018

ASTRONOMICAL PHENOMENA FOR THE YEAR 2018

Astronomical Phenomena for the year 2018

Author(s) USNO
Publisher Crown Publishing
Date 2018
Pages 80
Format pdf
Size 7 Mb
D O W N L O A D

 

 

 

 

 

 

The present publication was released to supplement The Nautical Almanac 2018. The content of the document was developed by the TNA Office of the U.S. Naval Observatory working jointly with the UKHO specialists. It will provide navigators with additional information required for safe navigation. The material is arranged thirteen chapters.

The first chapter is covering such phenomena as eclipses, Moon phases and seasons, helio- and geocentric planetary phenomena, perigee and occultations, together with the apogee of the Moon etc. In this chapter the authors are also dealing with the visibility of the Planets, configuration diaries an other relevant matters.

The other chapters of the document address the international time zones and eclipses, moonset and moonrise tables, mean sidereal time and circumpolar stars. They also provide explanation of setting and rising tables, Gregorian calendar, perihelion passages of the comets, magnitudes and elongations of the Planets and other information. As it was a case with the Nautical Almanac, this publication will be useful to the people when it is used as a supplementary tool for their training or daily working activities.

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