178 



KNOWLEDGE. 



May, 1913. 



Mars is a morning Star, but not yet well placed for obser- 

 vation. 



Ceres and Pallas are well placed for observation. They 

 are of magnitude 7 and 8 respectively. 



Jupiter is a morning star. Polar semi-diameter, 2I2". 

 Table 34. 



Satellite phenomena visible at Greenwich, l d h 36 m m I.Oc. 

 K. ; 2 h 24 m m III. Tr. I., 2 h 27 m m III. Sh. E. ; 2 d 2 h 32 m m 

 IV. Tr. I.,2 h 39w ra II. Sh. I., 4 d l h 8 m m II. Oc. R. ; 7 d 2 h 5 m m 

 I. Sh. I., 2 h 45 m w I. Tr. I. ; 7'' ll h 27 m ll"e I. Ec. D., 8 d 2 h 22 m m 

 I. Oc. P., 3 h 15 m m III. Sh. I.; 8 d 10 h 51 ra e I. Sh. E., ll h 29 m e 

 I. Tr. E. ; 10 d ll h 28 m 6"e II. Ec. D. ; ll d 3 h 25 m m II. Oc. R. ; 

 ll a WO m e III. Oc. R. ; 12 d 10 h 28 m c II. Tr. E., 15 d l h 21 m 14 B w 

 I.Ec. D.; 15 d 10 h 27 m e I. Sh. I., 10 h 56 m e I.Tr. I.; 16 d h 45 m »ft 

 I.Sh.E. l h 14 m m I.Tr. E.; 16 d 10 b 33 m e I.Oc.R.; 18 d 2 h 2 m 57 6 m 

 II. Ec. D.; 18 d 9 h 30 m 48"cIII.Ec.D.; 19 d 2 h 20 m m III. Oc. R. ; 

 19" g" 54" c n. Tr. I., ll h 57 m e II. Sh. E. ; 20 d h 44 m m II. Tr. E.; 

 22 d 3 h 15 m 22'm I. Ec. D. ; 23 d h 21 ,n w I. Sh. I., h 40 m w I. Tr. I., 



2 h 39 m w I. Sh. E., 2 h 58 m w I. Tr. E. ; 23 d 9 h 43 m 59 8 e I. Ec. D. i 



24 d h 17 m m I. Oc. R. ; 24 d 9 h 7 m e I. Sh. E., 9 h 24 m e I. Tr. E. ; 

 26 d jh 29 m 2Vm lu Rc D . 26 d 1Q h 46 m 3g s e IV Ec _ D 



ll h 43 m e II. Sh. I.; 27 d h 9 m w II. Tr. I., 2 h 33 m m II. Sh. E., 

 2 h 59 m w II. Tr. E., 3 h 30 m mIV.Oc. R.; 28 d 9 h 3 m e II. Oc. R. ; 

 30 d 2 h 15 m w I. Sh. I.. 2 h 23 m w I. Tr. I.; 30 d ll h 38 m 13 8 e I. 

 Ec. D. 



Saturn is invisible, having been in conjunction with the 

 Sun on May 29th. 



Uranus is a morning star, coming into a better position 

 for observation. 



Neptune is too near the Sun for convenient observation. 

 Meteor Showers (from Mr. Denning's List) : — 



Double Stars and Clusters. — The tables of these given 

 last year are again available, and readers are referred to the 

 corresponding month of last year. 



Variable Stars. — Tables of these will be given each 

 month ; the range of R.A. will be made four hours, of which 

 two hours will overlap with the following one. Thus the 

 present list includes R.A. 14 h to 18 h , next month 16 h to 20 h , and 

 so on. 



Table 35. Non-Algol Stars. 



