Fix sidereal time test
Fix sidereal time test

lpsinger/astropy,StuartLittlefair/astropy,pllim/astropy,StuartLittlefair/astropy,dhomeier/astropy,MSeifert04/astropy,aleksandr-bakanov/astropy,pllim/astropy,larrybradley/astropy,pllim/astropy,stargaser/astropy,MSeifert04/astropy,aleksandr-bakanov/astropy,saimn/astropy,stargaser/astropy,mhvk/astropy,lpsinger/astropy,pllim/astropy,astropy/astropy,saimn/astropy,larrybradley/astropy,dhomeier/astropy,pllim/astropy,mhvk/astropy,stargaser/astropy,mhvk/astropy,lpsinger/astropy,StuartLittlefair/astropy,MSeifert04/astropy,StuartLittlefair/astropy,MSeifert04/astropy,astropy/astropy,dhomeier/astropy,lpsinger/astropy,saimn/astropy,larrybradley/astropy,astropy/astropy,astropy/astropy,saimn/astropy,dhomeier/astropy,aleksandr-bakanov/astropy,larrybradley/astropy,mhvk/astropy,aleksandr-bakanov/astropy,astropy/astropy,StuartLittlefair/astropy,mhvk/astropy,saimn/astropy,dhomeier/astropy,lpsinger/astropy,larrybradley/astropy,stargaser/astropy