added ra and dec decdegs

added code that will convert obs_ra and obs_dec to obs_ra_decdeg and
obs_dec_decdeg
added ha and st in decs

added the hour and in decimal degrees and the sidereal time in decimal
hours
completed st_dechr

added the completed code to the method section
obnm bug fix

removed a “.” that was being appended to the end of the object name
stupid .pyc that won't be ignored