Observations of 500 Nebula. 



Ill 





Date 



Refract. 



Coincidence 

 of 

 Micro) n. 



Temp. C. 



Remarks on the images and state of 

 the atmosphere 





1865 













126 



Oct. 17 



II 



26,456 (2;* 

 34,667 (1)* 







— 3,0 



2.3 



Variable. Dull images. 



127 



Oct. 26 



TT 



± X 



26,433 (2) 



-2,3 



2 



Strong aurora. 



128 



Nov. 10 



II 



26,433 (3) 

 34,632 (2) 



- 2,0 



2.3 



Variable. Images tremulous and diffused. 



129 



Nov. 15 



II 







+ 0,5 



3 



Hoarfrost on the object-glass. 



130 



Nov. 25 



II 



26,425 (1) 



+ 4,9 



3.4 





131 



Nov. 27 



II 





+ 2,6 



3 





132 



Dec. 5 



II 



26,423 (1) 



- 3.5 



2 





133 



Dec. 6 



I 



26,431 (1) 



- 6,0 



2 



Strong moon. Images well defined and steady but dull. 



| 



134< 



Dec. 10 



TT 



44,110 (1) 



+ 4,2 • 





PHtayiw cpiIp- vflvinnlf* Tiiin cpq ri*PTHnlmiQ Qnn ilirtncPn 



Ol/lUlJg ilillG ■ V tlliLlVLK/* 1 lllri tl Cill LIJ.U Llo .111 1 1 V.I 111 lloUvl. 



loo 



Dec. 14, 



II 



34,646 (1) ' 



— 1,6 



3 



Soon clouding. 



136 



Dec. 18 



II 



34,641 (l/' ; 



+ 3,6 



3 



Wind. Images excessively tremulous and dull. 



137 



Dec. 19 

 1866 



II 







2 



Fine images; soon clouding. 



| 



138j 



Jan. 12 



II 



nn l Q c /o\ 

 ■£0,4o0 (Z) 



34,631 (1) 



- 6,8 



3 



Windy. Images excessively tremulous and diffused. 



1 on 



lot)' 



jyiarco v 



II 



26,446 (If 

 26,438 (2) 



— o,U 



3 



Aurora. Images dull. 



1 1C\) 



X *±U ' 



AT a mil 10 



II 



26,432 (1) 

 34,627 (1) 



a. k 



— OjO 



2.3 



Aurora and windy. 



14l' 



1 



March 15 



II 



26,433 (1) 

 o4,ooU \,&) 



- 9,8 



2 



Fine but very unsteady images. 



142 



March 16 



TT 

 11 



26,433 (2) 



- 5,3 



2.3 



Dull images. 



143 



March 24 



I 



34,623 fl) 



- 9,8 



2.3 



Images unsteady and not very fine. 



144' 



1 



Apr. 5 



I 



26,422 (2) 

 34,622 (I) 



+ 1,0 



o 



Sky variable ; soon fog. 



145 



Apr. 6 



I 



26,424 (2) 

 26,428 (1)* 



+ 1,1 



2.3 



Skv not very transparent. 



146 



Apr. 7 



I 



26,422 (1) 

 34,617 (1) 

 44,104 (1) 



+ 2,5 



2.3 



Aurora. Images pretty well defined but dull. 



147 



Apr. 8 



I 



26,424 (1) 

 34,624 (1) 



+ 3,3 



3 



Aurora. 



148 Apr. 10 



I 



26,433 (1)* 

 26,424 (1) 



+ 6,7 



2 



Images unsteady; soon clouding. 









26,424 (1)* 









149 



| Apr. 11 



I 



26,420(1) 



+ 4,7 



2 



Aurora; but sky relatively dark. Images a little 







34,639 (1)* 







unsteady 



160 



j Apr. 12 



I 



26,425 (2) 

 34,618 (1) 



+ 4,7 



!■ 





