Struve: Bestimmung der Hall)messer von Saturn 



807 



Beobachtung'en am Yerkes-Refraktor (40 z.). 



Beobachter: Barnard. Astr. Journal Vol. 26 und 27. 



1906 Juli 29 



06 Aus 



12 16 



12 31 

 12 46 



36 



Very faint and dose to linib, but distinct. 



3'" < Di. 

 very faint, but quile distinct, tliink it is in 



tlie sliadow. 

 very faint. tliink it is fading rapidly. 

 just fainlly visible, certainly in sliadow, a 



sniall briglit point. 

 excessively faint. 

 cannot see it. 

 certainly disappeared. Assnined middle of 



disappearance at 19'' 51 '"2'. 



Te. justfollovvingDi. SamebrightnessTe =Di. 

 . fading. ! 



. V,o'" < Di. 

 ■• •/,"' < Di. 

 » i"°<Di. 



" gone. Seeing good. 

 » certainly gone. Assnined middle of (he 

 disap])earance 21'' 12'" 14', perhaps slightly I 

 earlier. 



Di. unrhanged. 



" fading 



- 0.5 gone. 



" 0.6 gone. 



■' very faint. 



» i-ery vei'y faint. 



» excessi\ely faint. 



• gone. 



» certainly gone. 

 Seeing 3, ('re(|uent disturbances. Assumed 

 middle 21 20 "'43', tliongh ihe 0.5 and 0,6 

 gone would place it a liltle earlier. 



12 46 



>i 21 36 



Im Lick-Bulletin Nr. 172 ist Te. mit Di. verwechselt. 



