Determination of the day of the week determined for the latter part of the analysis. By using a given day August 13, 2009 which was a Thursday as a reference, with "Base" and "n" being the number of days and weeks it has been since 01/01/0001 to the given day, respectively and "k" the day into the given week which must be less than 7, "Base" is expressed as Knowing that a year divisible by 4 or 400 is a leap year while a year divisible by 100 and not 400 is not a leap year, a software program can be written to find the number of
IAU Working Group on Star Names IAU Working Group on Star Names The International Astronomical Union (IAU) established a Working Group on Star Names (WGSN) in May 2016 to catalog and standardize proper names for stars for the international astronomical community. It operates under Division C Education, Outreach and Heritage. The IAU states that it is keen to make a distinction between the terms "name" and "designation". To the IAU, "name" refers to the (usually colloquial) term used for a star in everyday speech, while "designation" is solely alphanumerical and used almost exclusively in official catalogues and for professional astronomy. (The WGSN notes that transliterated Bayer