LONGITUDE OF McGILL OBSERVATORY. 



121 



Table III ronUnued. — Observation»^ of June 5th, 1883, Montreal. 



Name uf Star. 



Virginis - 



; Il.\<Iiw 



ti Virginis - 



43 Couiœ Ber. 



'/ Eoutis - - 



U Bontis - - 



'/ Ui-fU' JIa.i. 



40 Cîissiop. - 



ÔD Cassiop. - 



<i Drauonis - 



4 L'l-sii' Mill. 



109 Viiginis - 

 (I Libii^ - - 

 (ir. 2101 

 / Cas-'iop. - 

 36 H. Cassiop. 

 /)' Ur.sîc Min. 



1(1 ,r Traiisif over 

 Mean Wire. 



lih 



Etniatiuns of ( ontlition. 



- 4 55 



- 22 .s;j 



- 10 33 



+ 28 28 

 -V IS 69 

 + 27 -57 

 ■r -I!! 34 

 + 1(17 3.'! 

 -i- Ills 09 

 + 04 56 

 + 7S 00 



- 15 33 

 + .59 40 

 + 113 I'S 

 + 107 42 

 + 7.1 38 



15 

 15 

 15 

 13 

 13 

 13 



.90 

 86 

 .95 I 



.98 

 .99 

 .08 1 

 91 



.47 ' 

 .47 

 •'7 



98 

 .S2 

 .82 

 ..52 

 • 47 

 .54 



L.VMP K.VST. 



li. in. 



8 0? 



8 16 



8 22 



S «) 



.S 52 



S 50 



S 10 



S 32 



8 50 



9 04 

 9 12 



27.86 

 07.05 

 33 87 

 58,47 

 33 69 

 18 (I.-) 

 23 09 

 33.18 

 50.27 

 39 l.'O 

 45.50 



+ 0.77rfn — l.DOrfc + dl — .01 =0 



+ 1 00j/« — \.OMr. I- ,li + .12 = 



+ UMdn — 1.02i/.; + >lt + .07 ^ 



+ 0.33t^c — 1.14((c + ''( — .06 = 



+ n.ildu — 1.00i/<- + -/( — .09 = 



+ 0.34./'( — 1.13(/c + dt + .04 = 



— 0.12^1 — 1 55r^- + ./( - .17 = 

 + 2.93rfn -i- 3 .32.7^ + dl -[- .18 = 

 + 2 85*1 + 3.21<(<; i- tli — .20 = 



— O'i'.uUi — 2.30,(,- -t- dt + .00 = 



— 2.61((n — 4.85(<(; + dt + .00 = 



I..\>IP «-EST. 



9 43 38 01 



9 47 42.05 



9 51 44.27 



9 22 47.04 



9 .30 1522 



9 54 18.80 



+ 0.68..((i' i- 1 0W(' + (A + .18 = 



+ 0.9W(i' + 1.94c/c + rf( + .25 = 



— OAMa' + 1.99(/c + rft - .00 = 

 + 2.3ôdn' — 2.55(A' + dt -\- .C6 = 

 + 2.91rf<i' — 3.2',lc/c + dt — .20 = 



— l.&ida' + Sndc + dl — .26 = 



Adopted Clock rate 



- 0'*.015 per hour. 



XORM.\L EQLWnOXS. 



= + 7.754(/« + 4 :;09./.f + 3,622t<( + .023 

 = + o.moda' — 4-955rf<; + 1.845rf' + .380 

 = 4- 4.369rfct — 4.955A(' + 33.739(/c — Slîiôdi + .159 

 = + 3.G22i/« + 1.845</a' — 5^1-5rfc + 10^782rf( + .163 

 Whence, da = + .002; da' = — .085; dc =— .010; dt = + 008; weight of rft = 7.32 



A.'sumed values ; « = — .040 ; a' = + 150 ; c = + .470 ; ( = + 3.770 

 Whence, total azimuth (a + da) = — .038; («' + da'} = -f- .065 



Collimation (L,amp West), (c + dc) = + .454 



Clock error at 14h. (( + dt) = +3*. 778 



and probable error = i .028, 



Sec. III., 18S5. 16. 



