4-70 Meteorological Observations fur October 1831. 



LUNAR OCCULTATIONS FOR DKCEMBEIl. 



Occullations of Planets and Jixcd Stars by the Moon, in Decemher 

 1831. Computed Jbr Greenwich, by Thomas Henderson, jEsy. ; 

 and circulated by the Astronomical Society. 



1831. 



Stars' 

 Names. 



°4 



Immersions. 



Sidereal 

 time. 



Mean 

 Golar time 



Angle from 



^f" 



Emersions. 



Sidereal 

 time. 



Mean 

 solar time, 



Angle from 



JaPn 



Dec. 8 

 10 

 15 



16 

 17 



Capricor.* 

 42 Aquarii 



f Ceti 



^ Ceti 



/Tauri.... 

 y TauiT.... 

 75 Tauri .. 

 <" Tauri... 



(99) Tauri 

 Aldebaran 



119 Tauri 



120 Tauri 

 g Geminor. 

 Hegulus.... 



2408 

 2653 

 255 

 293 

 379 

 478 

 508 

 510 



516 

 528 

 663 

 667 

 951 

 1209 



h m 



21 30 

 2 6 



23 58 

 8 56 

 2 50 



21 19 



59 



1 18 



1 55 

 4 46 



58 



1 27 



2 49 

 13 44 



h m 



4 23 



8 51 



6 23 

 15 20 



9 11 

 3 37 



7 16 

 7 35 



8 12 

 11 2 

 7 11 



7 40 



8 55 

 19 39 



29 

 55 

 79 

 56 

 354 

 105 



h m h 



21 57 4 51 214 229 

 Under horizon 



16 7 31 307 291 

 Under horizon 

 3 28 9 49 349 350 



22 10 4 27 293 253 

 1 59 8 17 268 238 



]) almost touching Star. — 

 Occulted to places further 

 North. 



310 

 355 

 227 

 254 

 284 

 290 



* Double Star. 



METEOROLOGICAL OBSERVATIONS FOR OCTOBER 1831. 



Gosport: — Numerical Results Jbr the Month. 



Barom. Max. 30-428. Oct. 17. Wind N.—Min, 29-231. Oct. 1. Wind S. 

 Range of the mercury 1-197. 



Mean barometrical pressure for the month 29-904 



Spaces described by the rising and falling of the mercury 4-865 



Greatest variation in 24 hours 0-594. — Number of changes 16. 

 Therm. Max. 68°. Oct. 6. Wind S.W.— Min. 40°. Oct. 29. Wind N.W. 

 Range 28°.— Mean temp, of exter. air 57°-58. For 31 days with © in =5^ 59-68 

 Max. var. in 24 hours 19°-00.— Mean temp, of spring water at 8 A.M. 54-30 



De Luc's Whalebone Hygrometer. 



Greatest humidity of the atmosphere, in the evening of the 12th 97° 



Greatest dryness of the atmosphere, in the afternoon of the 5th 61-0 



Range of the index 36-0 



Mean at 2 P.M. 72°-6.— Mean at 8 A.M. 78° 1.— Mean at 8 P.M. 820 



of three observations each day at 8, 2, and 8 o'clock 77*6 



Evaporation for the month 1-60 inch. 



Rain in the pluvi;imeter near the ground 4-835 inches. 



Prevailing wind, South west. 



Summary of the Weather. 

 A clear sky, 2; fine, with various modifications of clouds, 13; an over- 

 cast sky without rain, 8; foggy, i; rain, 7^. — Total 31 days. 



Clouds. 



