18 92MNRAS. .52. .560C © Royal Astronomical Society•Provided bythe NASAAstrophysics Data System 1 +a 0 —-K ^-TF-^-^)l 56p Messrs.CrossleyandQledMll,Observationsof best-known craters. when thegeneralcurveofdarkshadowreached someofthe appeared aboutmidnight,andgaveplacetoa dullgreytinge. naked-eye andotherphenomenawerenot wellseenbefore a cloudlessdayandnight.Owing,however,tothelowposition and theprincipallunarseas,&c.,werereadily seenandidentified fine :theeclipsedportionwasseentobeofa clearruddytinge, with thehelpofanopera-glass.Thisbeautiful colourdis- approximately of theMoon(altitudeabout18whenon the meridian) The LmarEclipse,1892May11:ObservationsmadeatMr. 9j-mch Cookerefractor, power66. Observatory forMay,anattemptwasmade to notethetimes 10 o’clock.ButastheMoongothigher spectacle wasvery 0o Taking /¿=fandsuccessively5,io°,20then While watchingfortheoccultationsofstars giveninthe The weatherhereonthenthwasallthatcouldbedesired— Crossley's Observatory,Bermerside,Halifax.ByEdward The instrumentused throughout theobservationswas Crossley, M.P.,andJosephGledhill. 2 12 -¿ten* I(I—ein*)} = ttan3sin^><^\} 3 ( /tt\2(M2fJL/ ( 2816 0 so $ =-tan5(I—*00042) ~ tan20(I—*00529). sin4+ -Kl"èè) — &C. - tanio°(1—*00156) 3 3 LU. 8, 18 92MNRAS. .52. .560C .Several veryfaintoneswereseenasthetime wenton,butthey June 1892.theLunarEclipse,1892May11. the telescopeandafriend atthechronometer;after11o’clock could notbeseenwhenclosetotheMoon’slimb. Thefollowing of theMoon,butnostarscouldbeseenuntil about10o^lock. observations weremade:theearlieronesby Mr.Crossleyat I tookchargeofbothinstruments. Before mid-eclipse:— After mid-eclipse:— © Royal Astronomical Society•Provided bythe NASAAstrophysics Data System Careful watchwaskeptontheskynear advancing limb Eudoxus, „ Aristotle, 2nd„ Linné, Aristotle, ist„ , istedgeofcrater Aristarchus, Tycho, Copernicus, „ , „ Proclus, Eudoxus, „ Plato, ist„ Menelaus, Proclus, , Archimedes, istedge„ Copernicus, istedge „ middle „ 2nd „ middleofcrater „ 2ndedgeofcrater „ 2ndedge,, „ middle 2nd 1st Occultations* ... 122628 ... ii4922 10 838 9 18l6 h ms G-.M.T. 44 3° 38 SO 32 36 43 45 43 7 38 2 34 ° 33 ° 25 27 46 30 45 IS 54 27 53 22 37 o 33 30 55 29 12 23 51 24 53 3° 8 IS SS* 18 92MNRAS. .52. .560C © Royal Astronomical Society•Provided bythe NASAAstrophysics Data System 562 Messrs.GrossleyandGledhill^LunarEclipse. 10 16 11 ö h m Time. Phenomena.Angie,observed 12 31 nearest second.Withregardtothetimeswhendarkedge of theshadowtouchedacrater-wall,<&c.,theyalsoweretaken touch awallthechronometertimewasrecorded. from thechronometer—i.e.,whenshadowappearedjustto 9 45 49 20 43 33 26 58 42 34 43 31 12 59 The timesoftheoccultationphenomenaweretakento JBermerside, Halifax: 1892 May13. D D D D D R D R D R R V R R R R 281 355 142} 112. 103 332 317 309 327 109 306 Í22815 94 65) 90 57 8 10 1932 10 1526 10 4051 10 3347 h ms, ii 3935 ii 316 ii 2834 ii 4357 GMT Faint star:notseentillawayfrom No starseennearlimb. Not seenuntilalittlewayfrom Faint star;notseentillawayfrom Perhaps isec.toolate. Faint star;notseentillawayfrom A brightstar;lostowingtoin- Very faint. Not seendouble;examinedit limb. limb. limb. limb. terruption. with 240. Remarks. LII* 8j 18 92MNRAS. .52. .560C s Jane 1892.Mr.Freeman,OccultationsofStarsetc. Occultations ofStarsbytheEclipsedMoon,1892May11,and interval. May 12,showingadailygainingrateofonlyo'i4inthe with aneyepiecehavingapowerof35andfieldi°8'in of 1892May.Thetelescopeemployedwasmy6J-inchrefractor, chronometer withatrustworthyelectrictime-signal,May4and diameter. Thetimeisdependentoncomparisonsofasolar eclipse, varyingindensitybutwithoutcloud. Thehazebecame 0 B.D. —19. other Phenomena,observedbytheRev.A.Freeman,M.A» The starsarethoseofthelistpublishedinObservatory 4091 4091 4087 409s 4097 409s 4099 There wasacertainamountofhazeabout throughout the f Thisdoublestarhungon thelimbfortwoorthreeseconds, j Starfirstseen8"*2offlimb of.))(=quarterleastaxisTycho). * Starfirstseen22"‘3offlimb of])(=halfgreateraxisTycho), © Royal Astronomical Society•Provided bythe NASAAstrophysics Data System 10 9*2 10 ii-i 11 20*9 10 12*5 12 37*5 11 24O 11 22*4 9 n*4 h m 9 31*4 9 17*4 9 32*9 9 34*8 9 34*o Magn. 97 8*3 8*3 82 9- 4 8-9 8- 9 Phenomena oftheShadow. hasenteredshadow(late). Shadow touchesCopernicusringonE. Shadow bisectsAristarchus. Shadow touchesCopernicusringonW. Shadow touchesTychoellipseonE. Shadow coversMersenius. Shadow touchesMerseniusonE. Shadow bisectsTycho. Shadow touchesTychoellipseonW. Moon hasleftshadow(late). Shadow touchesTychoonN. Shadow bisectsTycho. Shadow touchesTychoonS. Occ. R. D. D. D. R. R. R. IO 1725 11 34-25 ii 1418-25 10 3551-25 ii 489-25 ii 352*25 ii 4414-25 h ms G.M.T. Sudden. Late.* Eemarks. Final.f Sudden. Late.J Late.* Sudden. 563