Page:Philosophical Transactions - Volume 004.djvu/219

 *This Discourse came too late to hand, for giving time ytimely [sic] notice of this Phænomenon; though nothing be lost by this loss of time, as appears by the Advertisement it self.

I. The first Occultation almost ushers in the Year*: For on January 2. in the morning, the Star called Præcedens illarum quatuor in ala Virginis Austrina; may be covered with the Moons Southern limb. But fearing, that this Appearance will scarce be conspicuous, because the approaching light of the Sun will seize the Star before the beginning of the Occultation, I forbear to calcuate it.

II. The next observable Occultation will be on Febuary 25. a little before 8 at night; the Moon then again covering the same Scar in the Virgins South-wing: For which take this Calculus from the Caroline Tables; wherein I have supputed the Moons visible place to 7 h. 18 m. and 8 h. 18 m. P. M. at Derby, supposing its Longitude to the West from London 5 m. 30 sec. and its Latitude, as I observ'd it, 52 d. 58 m.

To 7 h. 28 m. To 8 h. 18 m.

f. d. m. s. d. m. sec.

The Moons Mean Anomaly 0 18 4 3 0 18 31 16

The Moons true place ♍︎ 29 15 4 ♍︎ 29 39 45

The Argument of Latitude 5 5 55 34 5 6 21 43

The Moons true Latitude North 2 2 33 2 0 29

Semidiameter 14 22

Her Horizontal Parallax ♓︎ 17 35 47 ♓︎ 17 51

The Suns right Ascension 348 36 348 38

The right Ascension of the Mid-heaven 100 36 113 8

The Mid-heaven ♋︎ 9 44 ♋︎ 21 23

The Horoscope ♎︎ 7 18 ♎︎ 15 39

The Angle Orient 60 17 59 13

The Moon from the Ascendant in the Ecliptick 8 3 16 19

In a great Circle 8 18 16 26

The Altitude of the Moons Center 8 0 15 1

Her Azimuth from the Ascendent 2 16 6 45

Her Parallactical Angle 29 47 31 26

The Moons Parallax in

Altitude 52 46 51 33

Longitude 45 48 43 19

Latitude 26 13 26 54

The Stars place Libra 0 d. 1 m. 19 sec. with Latit. Boireal. 1 25 0

The Moons visible place ♎︎ 0 0 52 ♎︎ 0 23 44

With visible Latitude North 1 36 20 1 33 35

In Antecedence of the Star 9 27 in conseq. 13 25

With greater Latitude North 11 20 8 35