52 



MR. RUMKER'S OBSERVATIONS 



The Moon. 



The Moon's orbit, during the intervals between her transits over the meri- 

 dians of the Observatories at Paramatta and in Europe, is sufficiently known 

 to deduce her Parallax from the following- South Polar Distances observed at 

 Paramatta. ITiese South Polar Distances answer to the culminations of the 

 Moon's centre, and are diflferent from the times for which the Moon's right 

 ascensions are given in page 28, which correspond to the transit of the first 

 or second limb, and must be reduced to the former, by applying the time in 

 which the Moon's semidiameter passes the meridian in apparent solar time. 



The refraction has been applied, but semidiameter and parallax have not. 



South Polar Distances of the Moon. I I 



1822. 



May 3 

 27 

 28 

 29 

 30 

 31 



June 1 

 2 

 3 

 14 

 28 

 29 

 30 



July 25 

 26 

 29 



Aug.ll 

 23 

 24 

 25 

 29 



Sept. 1 1 

 18 

 19 

 20 

 21 

 22 

 23 

 30 



Oct. 8 



9 



26 



27 



28 



Barom. 



inches. 

 30.21 

 29.87 

 30.00 

 29.93 

 29.75 

 29.57 

 29.70 

 29-92 

 29.71 

 30.00 

 30.00 

 29-99 

 30.00 

 30.09 

 30.23 

 29.85 

 30.03 

 29.87 

 30.07 

 30.04 

 29-74 

 30.00 

 29-71 

 29-52 



29.8 



29.38 

 29.33 

 29.63 

 29.53 

 29.77 

 29.95 

 29.82 

 29.89 

 30.05 



53 



58.5 



55 



48.5 



49 



54 



52 



48 



51 



42 



50 



48 



45.7 



51 



50 



50.7 



41.2 



60.7 



57.2 



57.4 



47 



50 



75 



73 



70 



67.6 

 69.2 



64 



58.3 



60.8 



60 



59 



56 



52.5 



Refract. 



28.3 

 57.4 

 47.07 

 38.26 

 30.12 

 22.98 

 17.59 

 14.16 

 9-72 

 4.84 

 19.36 

 14.56 

 10.8 

 21.67 

 16.03 

 7.1 

 50.2 

 13.19 

 9.85 

 7.66 

 12.09 

 20.78 

 19.54 

 14.59 

 10.82 

 8.15 

 6.78 

 6.26 

 44.0 

 22.1 

 9.4 

 30.6] 

 3979 

 50.89 



South Pol. Dist. 



82 

 101 

 95 

 89 

 83 

 78 

 73 

 69 

 65 

 103 

 74 

 70 

 66 

 76 

 71 

 63 

 118 

 69 

 65 

 63 

 68 

 110 

 75 

 71 

 67 

 64 

 63 

 62 

 94 

 111 

 106 

 84 

 90 

 97 



16.7 

 52.0 

 51.6 



10.8 

 I6.9 

 37.2 

 16.9 

 38.08 

 25.2 

 29-6 

 11.0 

 26.8 

 25.5 

 15.1 

 23.2 

 38.0? 

 22.1 

 49.6 

 27.9 

 38.7 

 42.2 

 5.98 

 20.95 

 29.0 

 37.5 

 14.7 

 10.8 

 7-1 

 47.3 

 32.1 

 39.5 

 56.25 

 25.6 

 5.3.2 



1822. 



Nov. 5 



7 



9 



10 



25 



Dec. 24 



25 



26 



1823. 



Feb. 21 



Mar. 21 

 23 



Apr. 15 

 17 

 18 

 19 



May 19 

 21 



June 15 



1826. 



May 18 

 20 



June 13 

 14 

 16 

 26 

 27 

 28 

 29 



July 13 

 15 

 16 



Barom, 



inches, 

 29.78 

 29.77 

 30.10 

 30.03 

 30.00 

 29.92 

 29-92 

 29-92 



29-83 



29.65 



29.99 



29.90 



29.8I 



29.705 



30.152 



29.95 



29.85 



29.692 



29.768 



30.09 



30.21 



30.18 



29.91 



30.14 



30.22 



30.00 



30.05 



30.06 



30.13 



30.10 



60 



63.2 



67 



76 



67 

 77 

 77 

 70.2 



69 



71.5 



62 



72 



68.5 



72.5 



58 



58 



58 



58 



42 



38 



43.5 



44 



57 



29 



29.5 



33.0 



50 



46.5 



42 



31.5 



Refract. 



12.36 



48.18 

 30.63 

 23.45 

 55.44 

 14.02 

 27.33 

 40.81 



South. Pol. Dist 



36.55 



27-48 

 3.44 

 39.0 

 31.1 

 17.3 



7.94 

 37.61 

 22.75 

 39.90 



28.58 

 18.03 

 39.06 

 31.65 

 19.12 

 49.29 

 56.8 

 5.37 

 10.08 

 21.65 

 14.73 

 13.81 



108 



96 



84 



79 



100 



109 



114 



117 



6.2 



43.0 



3.2 



44.5 

 28.44 

 2.67 

 2.03 

 59.4 



116 



114 



104 



117 



114 



110 



105 



89 



77 



91 



19 

 5 



8.15 

 27.83 



23 32.5 



1 

 51 

 59 



55.9 



14.8 



8.0 



57 34.0 

 30 68.81 



58 46.7 

 19 4.75 



82 

 73 

 89 

 84 

 74 

 95 

 99 

 103 

 106 

 76 

 70 

 69 



8 43, 



3 3, 



31 21, 



15 35, 



49 36. 



12 14, 



36 

 34 



28 49. 

 24 24, 



