Virginia Argus

Beginning of the eclipse at	9	53 A.M. apparent time
Total darkness	11	15 30
Middle of the eclipse	11	16 30
End of total darkness	11	17 30
Eclipse ends	12	44
Duration	2	51

On the 15th of June, 1805, there will be a total eclipse of the Sun, visible if the air be clear. The darkness, occasioned by this remarkable eclipse, will be so great, that if our atmosphere should be free from clouds, the stars will undoubtedly appear.

A total eclipse of the Sun, is such a rare phenomenon in the catalogue of eclipses, that there will not probably be another of the kind, at the same place, within the period of the present generation.

We have therefore, for the gratification of such of our readers as delight in contemplating the beauty of celestial phenomena, been at the trouble of making some calculations relative to the different aspects and phases of this great eclipse.—

The calculations are made for the meridian of Norwich, in lat. 41 37. N. long. 72. 12. W. of Greenwich, and are as follows, viz.

I. M. s.

The Moon's dark shadow will cover a spot on the earth's surface of more than 200 miles broad, at all places within which the Sun will appear totally eclipsed.

As our method of calculation has been rather tentative, than strictly mathematical, we present the reader with the following elements of this eclipse, that he may amuse himself, if he pleases, with a trigonometrical calculation of its different phases.

ELEMENTS

Nearest solstice 35

Sun's decl. 32N

Sun's semi diam 15-55

Moon's do. 16 3

Moon's latt. 18 37

Semidiam,of penumbra 18

Moon's hor. motion from the Sun

Angle of the Moon's visible path with the Eclipse

This eclipse having travelled in the expansum ever since creation, fell in open space quite clear of the earth at every return of the Chaldean period, till about the middle of the 10th century, when it first touched the earth at the South pole: since which time, it has continued to wear to the Northward at each periodical return of 18 years, &c --And according to the equable motions of the sun, moon and precession of the lunar nodes, this eclipse will wear off at the North pole of the earth about the year A. D. 2344, whence it again commences its ethereal route from which it will not return to the earth so as to perform the same revolution over again, until after a period of more than 10,000 years.

(Conn. haf.)

True app. time of	H. M. S.
conjunction	11 32 23
Semi-diam. earth's disk	59 43
Sun's distance from the