102 



COSMOS. 



Star. 



V Scorpii 



I Orionis 



y Lyncis 



C Draconis .. 



a Arae 



77 Sagittarii .. 

 TT Herculis ... 

 /? Can. min.'? . 



C Tauri 



(5 Draconis .. 

 fx Geminorum 



y Bootis 



E Geminorum 



a Muscse 



a Hydril 



r Scorpii 



6 Herculis... 



Magnitude. 



Vulg. 



3-37 

 337 

 3 39 



riiot. 

 3-78 

 3-78 

 3-80 



3-40381 



3-403-81 



3-403-81 



3-41 3-82 



3-41 3-82 



3-42383 



3-42383 



3-42,383 



3 43:3 84 



3 



3- 



3 



3 



3 



43 3-84 

 43,3-84 



443-85 

 443-85 

 443-85 



Star. 



6 Geminorum . . 



o Orionis 



/3 Cephei 



1? Ursae 



C Hydrae 



y Hydras 



i3 Triang. austr. 



Ursae 



Aurigae 



Lyrffi 



Geminorum . . 



Cephei 



Ursae 



e Cassiopeias . . 



d- Aquila3 



(T Scorpii 



Magnitude. 



ulg. I Phot. 



44i3-85 



r Arsus 3-50 3-91 



45 

 45 

 45 

 45 

 46 

 46 

 46 

 46 

 47 

 48 

 48 

 49 

 49 

 50 

 50 



386 

 3-86 

 386 

 386 



3-87 

 3-87 

 387 



3-87 



88 

 89 

 89 

 90 

 90 

 91 

 91 



" The following short table of the photometric quantities 

 of seventeen stars of the first magnitude (as obtained from 

 the photometric scale of magnitudes) may not be devoid of 

 interest :" 



Sirius. 4" 165 



r) Argus 



Canopus 2-041 



a Centauri 1"000 



Arcturus ..... .0-718 



Rigel 0-661 i 



Capella 0-510 j 



aLyrce 0-510 | 



Procyon 0-510 | 



a Orionis 0-489 



a Eridani 0-444 



Aldebaran. . .0-444 



i3 Centauri 0-401 



a Crucis 0-391 



Antares 0-391 



a Aquilfe 0-350 



Spica 



0-312 



" The following is the photometric quantity of stars strict- 

 ly belonging to the 1st, 2d 6th magnitudes, in which 



the quantity of the light of a Centauri is regarded as the 

 unit :" 



Magnitude on 

 the vulgar scale. 



1-00 

 2-00 

 3-00 



Quantity 

 of light. 



0-500 

 0-172 

 0-086 



Magnitude on 

 the vulgar scale. 



4-00 

 5-00 

 6-00 



Quantity 

 of light. 



0-051 

 0-034 

 0-024 



