Near Approaches to the Stars, and their Occultations by the Planets, for the year 1845.

JUPITER.

73 H

SATURN.
VENUS.

4 Aug. 3 5 5 M. 4 11 0.79 15 14 58.7N. 5

6.7 Mar. 29 9 35 M. 0 56 51.28 4 49 31.3N. 4 54.4 S.

Feb. 22 0 51 M. 21

†These are occultations.

of hN. of 0 38.28 17 47 17.7 S. 2 2.9

2.23E. of Q-hof 9-h 11.79E. 42.6 N.

N. 3.04E.

7. N.

14.0 N.

Position and Magnitude of the Rings of Saturn, according to Bessel and
Struve, for every fortieth day in the year, at 7 hours in the morning.

34.64 +11.09 +7 34.4 +18 40.5 +17 47.9

February 10

22.0 16 55.4

a denotes the semitransverse axis of the rings.

34.5

semiconjugate axis of the rings, positive when their northern surface is visible, negative when their southern.

p denotes the inclination of the Northern semiconjugate axis of the rings to the circle of declination; when East, when West. "" angle of elevation of the Earth above the plane of the rings, as seen from Saturn; + when North, when South. "elevation of the Sun above the plane of the rings, as seen when South.

from Saturn; when North,

--

The Conjunction of Saturn will take place on the 22d of February, and the Opposition on the 8th of August. The Right Ascension of this planet will not during the year differ much from 21h., and its declination will not be less than 16° South, so that it will not rise to a great height even when in the meridian.

A Table showing the Illuminated Portion of the Discs of Venus and Mars. The numbers in this table are the versed sines of that portion of the Discs, which, to an observer on the Earth, will appear to be illuminated, the apparent diameter of the planet at the time being considered as unity.

To a spectator on the Earth, Venus appears most brilliant when her elongation is about 45°, and she is approaching her inferior conjunction, or receding from it; in which positions she will not be this year. Mars is most brilliant about the time of his opposition to the Sun, being then also nearest to the Earth, in which position he will be this year on the 18th of August.

· 1845.

Venus.

January 15

0.870

February 14

0.925

0.903

August 15

March 15

April 15 0.990

September 15

0.870

June

15 0.990

INCREASE OF SIDEREAL TIME IN MEAN SOLAR HOURS, &c.

0 9.857

329

5.093

0.003

0.085

088

090

093

096

099

101

104

107

110

735

11

030

112

115

LATITUDE AND LONGITUDE OF SOME OF THE PRINCIPAL PLACES IN THE UNITED STATES, &c., WITH THEIR DISTANCES FROM THE CITY OF WASHINGTON.

The Longitudes are reckoned from Greenwich.

The Capitals (Seats of Government) of the States and Territories are designated by Italic Letters.