Fred Espenak: Perbedaan antara revisi

[[Fred Espenak]] adalah pensiunan<ref>[http://www.nasa.gov/topics/solarsystem/features/eclipse/espenak.html "NASA's 'Mr. Eclipse' Retires but Still Chasing Shadows"]. NASA. 20 September 2009. Diakses 22 Maret 2015.</ref> emeritus<ref>[http://science.gsfc.nasa.gov/sed/index.cfm?fuseAction=people.jumpBio&&iPhonebookId=22362 "Bio – Fred Espenak"]. Diakses 22 Maret 2015.</ref> [[astrofisikawan]] Amerika. Dia bekerja di ''[[GoddardPusat SpacePenerbangan FlightAntariksa CenterGoddard]]''. Ia terkenal karena karyanya tentang prediksi gerhana.<ref>[http://www.twanight.org/newTWAN/photographers_about.asp?photographer=Fred%20Espenak "TWAN Bio for Fred Espenak"]. Diakses 22 Maret 2015.</ref>