Observations of 500 Nebulae. 



107 



Night 



Date 



Refract. 



Coincidence 

 of 

 Microm. 



Temp. C. 



Remarks on the images ami state of 

 the atmosphere 





1863 





r 











17 



Anvil 4 -tO 



I 



Qrt AOQ (1) 



+ 25 



2 



Air very damp; perfectly calm and images pretty steady. 













Strong moonlight. Observation soon interrupted 















bv f02". 



18 



May 1 



I 



44,546 (1) 



+ 4,8 



o 



jit 



Air very dry*, strong wind and moon. Images tole- 













rably steady. Illumination deficient. 



19 



T„l",. no 

 J U 1 V ^0 



II 



24,979 (1)* 



+ 1 / ,<2 



3 



Twilight and moon ; windy. Images extremely dis- 













turbed. 



20 



Au°\ 2 



II 



32,389 (2)* 



+ 9,0 



2.3 



Strong moon and twilight; perfectly calm; images 













nevertheless very unsteady, indistinct and variable. 



21 





II 





+ 12,0 



1.2 



Moon. 



22 



Aug. 9 



II 



32,393 (1)* 



+ 1 0, 1 



2.3 



Strong wind. Images very tremulous and ill defined. 



23 



Aug. 14 



II 



33,193 (2)* 



+ 11,3 



1.2 



Slight wind. Images very unsteady. 



24 



Aug. 17 



I 



24,969 (2) 



+ 14,5 



2.3 



Air perfectly calm and very damp; variable. Obser- 













vation interrupted by fog. 



25 



Auo- 20 



I 



94. Q7() fl) 



+ 13,0 



2 



Air calm and damp. 



26 



Ann. OK 



Aug. JO 



I 



CI A Ct*7 O ' 9^ 



24,9/3 \*> 





2 



Tolerably windy ; images nevertheless steady. Bright 













moon. 



27 



Sept. 2 



I 



32,405 (3)* 



+ 12,0 



2 



Variable, cloudy, feeble wind. Strong moon. Images 









not very well defined. 



28 



Sept. 15 



I 





+ 8,8 



2 





29 



a Pn t 1 a 



locpi. -1 O 



I 



32,392 (2) 



+ 7,5 



1.2 



Atmosphere very variable. 



30 



Sept. 21 



II 



o o 1 n k 



oo,l 95 UJ 



+ o,0 



2 



Quiet and steady images ; soon clouding. 



31 | 





1 



24,9/5 (i) 







Strong gale, images very tremulous but measures 



Sept. 29 





94. 1 fiQ (1) 



+ 7,0 



1.2 



satisfactory. Strong moonlight. 



32 



Sent 30 



UL/ 1 J lit U \J 



I 



VA. Q7^S (2) 



+ S 5 



2.3 



Windy and images very tremulous. Strong moonlight. 



33 



Oct. 1 



I 



24,973 (2) 



t Q 1 



+ o,l 



2.3 



Calm, but images unsteady ; very damp; strong moon. 









Soon fog and clouds. 



34 



Oct. 21 



7 

 I 



94. Qft^v CD* 



+ 3,0 



2 



CI J_ .1—1 *1J. 1 CI J „ 



Strong gale and excessively tremulous images. Strong 









moonlight. 





Oct. 24 



II 



24,983 (3)* 



- 0,5 



1.2 



Steady images. Strong moon. 



36 



Nov. 14 



l 



24,973 (2) 



0,0 



2.3 



Very strong aurora ; images dull. 





1864 













37 



Jan. 24 



I 



24,186 (4) 



- 1,5 



2.3 



Cirrhi and wind ; images however pretty good and 







steady. 



38 



Jan. 29 



I 



24,185 (1) 



- 6,6 



3.4 



Observations very difficult. 



39 



Febr. 19 



I 



24,190 (3)* 



- / ,u 



2 



Slight wind; strong moon. 



40 



March 13 



I 



32,397 (2) 



0,0 



2 



Images unsteady. Moon. Interrupted by clouds. 



41 



March 16 



I 



24,977 (2) 



- 8,5 



1.2 



Moon. Images a little unsteady 



42 



Apr. 7 



I 



24,187 (2) 



- 4,7 



2.3 



Calm. Images considerably tremulous. 



43 



Apr. 8 



I 



32,411 (2)* 



- 1,0 



2 



Wind. Images very tremulous. 



44 



Apr. 10 



I 



24,989 (1)* 



+ 3,5 



3.4 



Too bad for continued observation. 



45 



Apr. 12 



I 



32,410 (2)* 



+ 3,0 



2 



Unsteady images. Moon. 



