. Tables of calculated hour-angles and altitude azimuth table 30N. to 30S. : ex-meridian tables 60N. to 60S. and calculated reductions ans azimuths of bright stars from 1 hour to 3 hours from Meridian / c by Blackburne . Green. 6 35 47Long. 6° W. - 24 o H. M. T, (Green, noon) 23 14 9*53Accl. 6 h. 35j m. i 5*02 Os 6 II 4723 15 14^ Sid T. at 5 27 1-6 4 30 55-9 0 56 57 M. 0s 2nd Obsn. 23 15 i455+ 0-8 23 IS i54 -;r s bearing from Table S. 255 N. 64-5 W. M. N. N. 28 E. io=o9 o5 = d. long. 07 E. Alt. of -Ir 57 6-


. Tables of calculated hour-angles and altitude azimuth table 30N. to 30S. : ex-meridian tables 60N. to 60S. and calculated reductions ans azimuths of bright stars from 1 hour to 3 hours from Meridian / c by Blackburne . Green. 6 35 47Long. 6° W. - 24 o H. M. T, (Green, noon) 23 14 9*53Accl. 6 h. 35j m. i 5*02 Os 6 II 4723 15 14^ Sid T. at 5 27 1-6 4 30 55-9 0 56 57 M. 0s 2nd Obsn. 23 15 i455+ 0-8 23 IS i54 -;r s bearing from Table S. 255 N. 64-5 W. M. N. N. 28 E. io=o9 o5 = d. long. 07 E. Alt. of -Ir 57 6-0 S. Redn. from Table + 2 7*6 Mer. alt. Approx. for 6^ Lat. at time of 2ndObsn. 59 i3630 46-4 N, 16 20*2 N. 47 6-6 *6 47 72 N. 47 8-1 N. Sirius to South-Eastwaru. 5° 59-3 W. H. M. S. 6 40 55*o-23 57o 6 16 58*023 15 i54 5 32 i34 6 41 19-5 I 9 6o E. -;r s Mer. Alt. Approx. for 18 24 14-0 S.+ 1 52*2 0s Sid. T. at -;r s 26 6-2 63 53-8 N16 35-8 S. 47 i8-o N+ o9 Lat. in 47 18-9 N. -;;- s bearing from Tables S. i83 S. 72-0 W. (Table IX.) Figure. Lat. (i) 47 8-1 (2) 47 i89 Diff. Lat. Lat. 10-8 Long. IO Lat. (2) 47 18-9 44 S. Lat. in 47 i45 N. Tables further tested by Spherical Observation -;•• \. ih. lom. 2^s. Cos 9*979190 Uec l6 35 50 S. Cot 0*525696 Cosec 0-544177 .^rc (I) 17° 21 so s. Cot Alt. 0-504886 SinSin 9-474856 24° 14 9 6I3264 Arc 2I 64° 36 21 N. • . Cos 9-632297 Lat. 47 14 31 N. -/; s bg. S. 25^ W. 0-33 N. to W.•,i s bg. S. 18 E. 0*23 S. to W. Lat. Error (sum) 0-56 to io long. D. Lat. Long. Cor. , Lat. Cor,IO-8 : 19*3 xo-23= 44 S. Long. (2) 5 59-3 i93 W. 6 i8-6 W. = - o 25 Green. 6 40 55*0 0s 6 15 41-023 15 i54 Sid. T. at Sp. 5 30 56-4?ii s 641 19-5 -r- s I 10 23-0 To prove Correctness ofWork. Alt. 24 14o S. Redn. from Table -f


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