Because of the fraction of days in a saros, the visibility of each eclipse will differ for an observer at a given locale. For the lunar saros series 131, the first total eclipse of 1950 had its best visibility for viewers in Eastern Europe and the Middle East because mid-eclipse was at 20:44 UT. The following eclipse in the series occurred about 8 hours later in the day with mid-eclipse at 4:47 UT, and was best seen from North America and South America. The third total eclipse occurred about 8 hours later in the day than the second eclipse with mid-eclipse at 12:43 UT, and had its best visibility for viewers in the Western Pacific, East Asia, Australia and New Zealand. This cycle of visibility repeats from the start to the end of the series, with minor variations. Solar saros 138 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
beCAUsE of The fraction of dayS In a Saros, the visIbility oF EACh eCLIpSE will DiFfer fOr an observeR at a gIven lOcALe. foR the lUNar SarOs SeRies 131, the fiRSt toTal ECLipSe Of 1950 had ItS best visIbilIty for vIewerS in easTerN eUrOpe anD thE mIdDle east beCausE mid-eclIpsE wAs At 20:44 Ut. the folLowing Eclipse in ThE SeRies OCcUrred aboUt 8 houRs later in tHe daY with MiD-ECLipsE at 4:47 ut, anD WAs beSt seEn frOm nORtH ameRica anD South AMerica. the THIRd tOtAL eclipse oCCuRrEd aboUT 8 hourS LaTeR iN tHe DAy thaN the seCONd ecLipse With mid-eClipSe At 12:43 uT, AnD HaD itS best visibiLiTy foR ViewerS in tHE WesteRn pacIFic, EasT AsIa, AUstralia and new zeaLanD. This CyCLE oF viSibility REPeATs FRom THe staRt to thE End of the seRiES, with minor VaRiaTionS. sOlar saroS 138 inTerLeaves WiTh thiS luNaR sAros witH an eVent OccurrinG eveRy 9 Years 5 daYs alternaTIng BEtween eAch saros seRiES.