***************************************************** Hydorogen alpha line's Weekly Images Observed with Sartorius 18cm Refractor Telescope (Made in German [Zartorius] 1910) at Kwasan Observatory ***************************************************** Explanation of file names yyyymmddN.gif ; North Hemisphere in 'yyyy'-year, 'mm'-month, 'dd'-th. yyyymmddS.gif ; South Hemisphere in 'yyyy'-year, 'mm'-month, 'dd'-th. yyyymmddE.gif ; East Limb in 'yyyy'-year, 'mm'-month, 'dd'-th. yyyymmddW.gif ; West Limb in 'yyyy'-year, 'mm'-month, 'dd'-th. yyyymmddC.gif ; Near the Disk Center in 'yyyy'-year, 'mm'-month, 'dd'-th.