Astronomia Britannica exhibiting the doctrine of the sphere, and theory of the planets decimally by trigonometry, and by tables : fitted for the meridian of London ... / by John Newton ...

Precept 6.

The Oblique Ascensions of the other Houses are found by a continual addition of 30 degrees to the Right Ascension of the Mid-heaven, as hath been also shewed in the 16 Chapter, and thus the Oblique Ascension of the 11 House is 102. 80. 12 House is 132. 80. Ascendent is 162. 80. 2 House is 192. 80. 3 House is 222. 80.

The Poles of Elevation above the Circle of Position of the Ascendent is always the same with that of the place, for which the figure is erected, the Poles Elevation for the 11, 12, 2 and 3 Houses you may find in the Table for that purpose annexed to the Table of Oblique Ascensions.

Example. By that Table under our Elevation of 51. 53. the Poles Ele∣vation above the Circles of position of the 11 and 3 Houses, is 32. 18. And the Poles Elevation above the 12 and 2 Houses is 47. 46.

Now then to find the Cuspe of the 11 House, look the Oblique Ascen∣sion thereof, 102. 80. in the Table of Oblique Ascensions answering to 32. 18, of Elevation, and the point of the Ecliptick answering thereunto is Cancer 24. 98.

In like manner, if you look the oblique Ascension of the 12 house, 132. 80 under the elevation of 47. 46. the Cuspe thereof will be Leo, 25, 26.

If you look the oblique Ascension of the Ascendent 162. 80. under the Elevation of 51. 43 the Cuspe thereof will be Virgo 17. 94.

If you look the Oblique Ascension of the second House 192. 80. under the Elevation of 47. 46. the Cuspe will be Libra 9. 44.

Lastly, if you look the Oblique Ascension of the third House, 222. 80 under the Elevation of 32. 18. the Cuspe thereof will be Scorpio, 6. 35. The other 6 Houses, are in the same Degrees and parts of the opposite signes.