150 



Procsedings of the Royal Irish Academi/. 



A CATALOGUE OF KN 



No. 



Star. 



R.A., i88o. 



Decl., i88o. 



Change of Magnitude. 



Mean E 

 Da3 



Max. 



Min. 



1 



T Cassiopeiae, . . . 



H. M. S. 

 16 45 



o 

 + 55 



7 



33 



6-5-7-0 



11, 11-2 



43 



2 



E Andromedse, . . 



17 44 



+ 37 



54 



39 



5-6-8-6 



<12-8 



404 



3 



S Ceti, 



17 57 



- 9 



59 



39 



7-0-8-0 



<10-7 



323 



4 



B Cassiopeias, . . 



18 9 



+ 63 



28 



51 



>1 



P 



p 



5 



T Piscium, . . 



25 46 



+ 13 



56 



15 



9-5-10-2 



10-5-11-0 



Irregi 



6 



a Cassiopeia3, . . . 



33 42 



+ 55 



52 



45 



2-2 



2-8 



Irregi 



7 



UCephei, . . . . 



52 35 



+ 81 



13 



48 



7-2 



9-1-9-4 



2-49 



8 



S Cassiopeise, . . . 



1 10 52 



+ 71 



58 



48 



6-7-8-5 



<13 



61 



9 



S Piscium, . . 



1 11 18 



+ 8 



17 



54 



8-8-9-3 



<13 



406- 



10 



R Sculptoris, . . . 



1 21 27 



-33 



10 



24 



5-75 



7-75 



207 



11 



R Piscium, . . . 



1 24 27 



+ 2 



15 



39 



7-4-8-3 



<12-5 



345 



12 



S Arietis, . . . . 



1 58 11 



+ 11 



56 



57 



9-1-9-8 



<13 



288 



13 



R Arietis, .... 



2 9 18 



+ 24 



29 



48 



7-6-8-5 



11-9-12-7 



186 



14 



(Mira) Ceti, . . 



2 13 18 



- 3 



31 



18 



1-7-5-0 



8-9 



331 



15 



S Persei, .... 



2 14 15 



+ 58 



2 



12 



8-5 



<9-7 





16 



R Ceti, 



2 19 55 



- 



43 



6 



7-9-8-7 



< 12-8 



16' 



17 



T Arietis, .... 



2 41 38 



+ 17 







36 



7-9-8-2 



9-4-9-7 



32' 



18 



p Persei, .... 



2 57 29 



+ 38 



22 



30 



3-4 



4-2 



LTBgt 



19 



P Persei (Algol), . . 



3 22 



+ 40 



29 



36 



2-2 



3-7 



2-867 



20 



R Persei, .... 



3 22 25 



+ 35 



15 



21 



8-1-9-2 



12-5 



208- 



21 



\ Tauri, .... 



3 54 1 



+ 12 



8 



54 



3-4 



4-2 



3-95 



22 



T Taui-i, .... 



4 15 



+ 19 



15 



3 



9-2-11-5 



< 12-8 



In-egu 



23 



R Tauri, .... 



4 21 43 



+ 9 



53 



36 



7-4-9 -0 



<13-0 



325- 



24 



S Tauri, .... 



4 22 38 



+ 9 



40 



48 



9-9 



<13 



378 



25 



R Doradus, . . . 



4 35 22 



-62 



18 



47 



5* 



6f 





26 



VTaui'i, . . . . 



4 45 6 



+ 17 



20 



9 



8-3-9-0 



<12-8 



168- 



, 



















