LONGITUDE OF McGlLL OBSERVATORY. 



I2i3 



Table III cow/mj/e^^.— Observations of June 21st, 1883, Cambridge. 



Name of Star. 



Transit over 

 Mean Wire. 



Bh 



Efiuations of Condition. 



CIRCLE WEST. 



Ô Scorpii - - 



/Î' Scorpii - - 



'' Ophiuchi 



n Serpcntis - 



/3 Serpcntis 



K Serpcntis 



}' Hcrculis 



Gr. 2164 - - - 



i'^ Bootis - - 



« Coronse - - 



47 H. Cephei - 



48 II. Cephei - 

 1 H. Ursœ Min. 

 ■y Ursœ Min. - 

 !^ Ursa; Min. - 

 19 Ursœ Min. - 



.89 

 .91 



.97 

 .99 

 1.00 

 I.OO 

 .99 

 .82 



h. m. 



15 53 



15 58 



16 OS 

 15 38 

 15 41 



15 43 



16 16 



14 48 



15 26 

 15 29 



14 50 



15 05 

 15 13 

 15 21 



15 4S 



16 14 



28.80 

 41 84 

 16.27 

 33 45 

 .50.26 

 31 411 

 48.59 

 30.47 

 46.27 

 46.88 

 .37.59 

 33.13 

 20.23 

 57. SO 

 18.25 

 13 35 



+ 0.07 

 + .08 



+ 



.10 

 .10 



+ .12 



+ 13 



+ .14 



— .15 

 + .14 

 + .12 

 + .20 



— .07 

 + -U 

 + .25 

 + .55 

 + .52 



+ 9S(?fi 

 + 0.94((« 

 + 0.72,/« 

 + 0.59rf« 

 + 0.47t/<f 

 + 0.437,( 

 + 0.41./^ 



— 0,5ii(/a 

 + 0.0."./<t 

 + 0.307t« 

 + 4.46r/a 

 + 3 95'/'. 



— 1.13</« 



— 1 6l(Za 



— 2.85rfa 

 -2.33(fo 



+ l.OSdc 

 + 1.06* 

 + lOOrfc 

 + l.Olrfc 

 + I-Olrfe 

 + iMôdc 

 + 1.06f/c 

 + 1.99rfc 

 + 1.33rfc 

 + 1.12ic' 



— 5.22'/c 



— 4.55(7c 

 + 2.6)rfc 

 + 3.28:;c 

 + 4. 86 Je 

 + 4.18rfc 



+ di - 



+ dl + 

 + <lt + 

 + dt + 

 + dt + 

 + df + 

 + dt + 

 + dt- 

 + dt + 

 + dt + 

 + -/( - 

 + '/( + 

 + dt — 

 + dt — 



+ dt- 



•+ dt + 



.06 = 

 .02 = 

 .08 = 

 .11 = 

 .15 = 

 .11 = 

 .09 = 

 .Ot = 

 .13 = 

 .03 = 

 .23 = 

 .11 = 

 .05 = 

 -28 = 

 .27 = 

 .17 = 



— .09 



— .02 

 + .04 

 + .07 

 + -U 

 + .07 

 + .05 



— .04 

 + .09 



.00 



— .13 

 .00 



— .03 



— .16 



— .09 

 + .10 



CIRCLK EAST. 



e Ophiuchi ----- 24 53 



« Ophiuchi - - - - + 12 39 



n Herculis ' + 14 31 



/i Herculis ----- + 27 48 

 109 Herculis -----,+ 21 43 



,3 Draconis - - - - + 52 23 



s Draconis - - - -, -j- 56 54 



ï Draconis - - - - 4- .51 30 



Herculis , + 28 45 



a LjTse ------:+ 38 41 



Gr. 966 - - I -F 105 03 



u Draconis ----- + 08 49 



22 H. Camelop. - - - + 110 39 



23 H. Camelop. - - - -(- 100 19 



9 

 25 

 25 



15 



25 

 20 



.99 

 .99 

 .99 



1 00 

 .81 

 85 

 .85 

 .98 

 .97 

 .51 

 .70 

 .48 

 .30 



17 15 



17 29 



17 09 



17 42 



18 18 

 17 28 

 17 51 



17 54 



18 f3 

 18 3:! 

 17 24 



17 37 



18 06 

 18 26 



53.54 î 



33.52 î 



22.01 



55-97 



46.01 



50.47 



.33.72 



56.51 



01.93 



01.85 



05.79 



41.66 



.57.73 



13.81 



.02 



.00 

 .04 

 .10 

 .11 

 .11 

 .18 

 .16 

 .11 

 .13 

 .14 

 .20 

 .12 

 .33 



-1- 1.02da' 

 + 50(?a' 

 + 0.4Srfa' 

 + 0.28rf,,' 

 + 3Sda' 



— O.^Sda' 



— 0.45rfa' 



— 0.26rf«' 

 -1- 0.27rfa' 

 + OSda' 

 + 3.43c;a' 



— 1.24rfa' 

 + 2.64da' 

 + i.7Sda' 



— l.Wdc 



— 1.02rfc 



— X.OSdc 



— l.lSf/c 



— 1.08'fc 



— l.GUc 



— IMdc 



— l-61rfc 



— 1.14c/e 



— 1.28rfc 

 + 3.86(/c 



— 2.77rfc 

 + 2.Sidc 

 + 5.58rfc 



.20 

 .14 

 .06 

 .02 

 .05 

 .03 

 .26 

 -16 

 -02 

 01 

 .20 

 .13 

 -06 

 .07 



Adopted clock rate = + (f'OOô per hour. 



XORMAL EQUATIONS. 



= + n.USdn — 8,406*! + 2.775.i( + 0.4.38. 

 = H- 9.233(/«'-t-7.491rfc + 3.a30rf( H- 0.530. 

 = — 8.406iin -I- 7.494rfn' + 59.36Wc H- 3..573rf« + 0155. 

 0= + 2 775i/a + 3.330rfa' -I- 3. 573rfc -1-20. 291</( + 0.758. 

 Whence, da =— .026 ; tfa' = - .049 ; dc = O'jO : dt =— 025 ; weight of dl = 17 52. 

 Assumed values: a =— .500; «'=—.500; c = — .200; (=-9-870. 

 Whence, total azimuth (n + da) = — .526 ; (a' -1- da') = — 549. 

 CoUimation (circle west), (c -H rfc) = — 200. 

 Clock error (( -1- dt) at 167i. = — 9'.895 

 And probable error i .021. 



