Version 2.7 10/14/2014
・Add search of sunrise, sunset and moonrise, moonset time
Version 2.6 1/16/2014
・Updated the asterisms
・Updated a search function of Double Star
Version 2.5 9/20/2013
・Added asterisms
・Added a search function of Double Star
Version 2.4 7/12/2013
・Fixed the display position of the M4
・Improved scaling function
Version 2.3 7/5/2013 Added a search function.
Version 2.2 6/20/2013