You know, Madam, said I, that it hath been before observed to you, that the Astronomers have Instruments made on purpose for it, which do it with great Accuracy: But as for your present Enquiry, how high any Star or Planet appears to be above the Horizon, you may guess at it nearly, thus: The Distance you see here between the two Pointers of the Great Bear before-mentioned, is nearly five Degrees; and this being a Distance always ready, and in view, will serve you very well to guess at the Height of any Star above the Horizon; or at the Distance of one of them from another; so as to enable you to find out any of them in the Heavens by the Help of the Globe, or any Planisphere, or Map of the Heavens: Use will make this easy to you; and when you come also to consider, that from the Zenith to the Horizon, being 90°, half that Distance mnst be 45°; one third of it 30°; a sixth of it 15°; a ninth Part of it 10°, &c. you will, by Degrees, easily gain a practical Knowledge of these Distances.
But if you please we will go on: Almost South-west, at this Time, and about 43° high, will appear another Star of the first Magnitude, called Deneb.Deneb, which is inthe
