網頁圖片
PDF
ePub 版
[blocks in formation]

Astronomical Calculations for

1927.

The Astronomical Calculations, beginning on the next page, are given in local Mean Time, except herwise indicated, and were made expressly for THE WORLD ALMANAC by Arthur Newton of the United Naval Observatory, Washington, D. C.

CALENDAR FOR 1927.

[ocr errors]

1 April...

12 July..

3 4 5 6 8 9 10111213141516 17181920212223 24252627282930

2 3 4 5 6 7 9101112131415 16171819202122 23242526272829

3031.

.. 1 2 3 4 5 6789101112 13141516171819 20212223242526

27 28

May... 1 2 3 4 5 6 7

1 2 3 4 5 June..

6 7 8 9101112 13141516171819 20212223242526 127128129130131..

8 91011121314 Aug. 15161718192021 22232425262728

293031

1 2 3 4 Sept..

5 6 7 8 91011 12131415161718 19202122232425 (2627282930. ...

[blocks in formation]

CALENDAR FOR 1926.

2 3 4 5 6 7 8 9101112131415 16 17 18 19 20 21 22 23242526272829

3031

1 2 3 4 5 6 7 8 9101112 13141516 17 18 19 20212223,24 25 26 27282930

1 2 3 4 5 6 7 8 910 11121314151617 18192021 22 23 24

25 26 27 28 29 30 31

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

In the temperate zones, these are four in number: *pring, Summer, Autumn and Winter: beginning pectively at the vernal equinox, the summer mistice, the autumnal equinox and the winter tice: for which, in the north temperate zone, The approximate dates are March 21, June 21, Bestember 23, and December 21. In the south temperate zone, the vernal equinox or the beginning of spring si September 23, the summer solstice or he beginning of summer is December 21, and so on. The earth's axis continually points in the same erection, and if the axis were perpendicular to the ne of the earth's orbit around the sun there uld be no change of seasons. Day and night would everywhere be of equal length and equable nditions of temperature would prevail throughut the year. But the axis is tilted 23° 27' away from a perpendicular to the orbit, and only in March and September is the axis at right angles to the direction of the sun. In those months occur The equinoxes, when day and night are equal the world over. In June, the North Pole is tilted 23° toward the sun and the days in the northern hemisphere are longer than the nights; at the same time, the days in the southern hemisphere are

30/31

shorter than the nights. In December the North Pole is tilted 23° 27' away from the sun and the nights in the northern hemisphere are longer than the days; at the same time the nights in the southern hemisphere are shorter than the days.

In

The heating influence of the sun increases with the length of the day and with the sun's altitude at noon. The greatest daily accession of heat is, therefore, at the time of the summer solstice; and the least is at the time of the winter solstice. June, in the north temperate zone, the heat received by day far exceeds the loss through radiation by night, and it is not until July or August that the two become equal and the maximum temperature of the year is experienced. In December, the heat received by day fails to make good the loss by night, and it is not until January or February that gain and loss become equal and the thermometer ceases to show a downward tendency.

The seasons in 1927 (Eastern Standard Time) begin as follows: Vernal equinox (Spring), March 21, 9.59 A. M.; summer solstice (Summer), June 22, 5.22 A. M.; autumnal equinox (Autumn), Sept. 23, 8.17 P. M.; winter solstice (Winter), Dec. 22, 3.18 P. M.

[blocks in formation]

Sun.

Mon.

Tues.

Wed.

Thur.

Sat.

Sun.

Mon.

Tues.

Wed.

Thur.

Fri.

1st Month.

[blocks in formation]

JANUARY.

(Local Mean Time. A. M., light figures; P. M., black.)

Calendar for
Boston,
New England,
N. Y. State,
Michigan, Wisconsin,
N. and S. Dakota,
Washington, and
Oregon.

Sun
Rises.

Sun Moon
Sets. R. & S.

Calendar for
New York City,

Connecticut,
Pennsylvania, Ohio,
Indiana, Illinois,
Iowa, Nebraska,
Wyoming, and
Northern California.

Sun Sun Moon

Calendar for
Washington,
Virginia, Kentucky,
Missouri, Kansas,
Colorado, Utah,

Nevada, and
Central California.

Sun

Sun Moon

31 Days.

Calendar for
Charleston,

Georgia, Alabama,
Louisiana, Arkansas,
Texas, New Mexico,
Arizona, and
Southern California.

Sun Sun Moon

Rises. Sets. R. & S. Rises. Sets. R. & S. Rises. Sets. ¡R. & &

H. M.H. M.H. M.H. M.H. M.H. M.||H. M.H. M.H. M.H. M.H. M.H. M

1 Sa

[blocks in formation]
[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

Places. Jan. Beg., A. M.JEnds, P. M. Jan. |Beg., A. M.Ends, P. M. Jan. (Beg., A. M.Ends, P. M.

[blocks in formation]
[blocks in formation]

H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M. 7 15 5 13 6 55

Sun Sun Moon
Rises. Sets. R. & S.

Sun Sun Moon
Rises. Sets. R. & S.

Tu

7 11 5 16 6 50

7 7 5 20 6 44

6 56

5 32 6 27

[blocks in formation]

Day of
Month. H. M.

SUN ON MERIDIAN OF WASHINGTON.

Day of

Day of

Day of

Day of

S. Month. H. M. S. Month. H. M. S. Month. H. M. S. Month. H. M. S.

[blocks in formation]

Places.

TWILIGHT.

Feb. Beg., A. M. Ends, P. M. Feb. Beg., A. M.¡Ends, P. M. Feb. Beg., A. M. Ends, P. M.

[blocks in formation]
[blocks in formation]

1 Tu

MARCH.

(Local Mean Time. A. M., light figures; P. M., black.)

Calendar for Boston, New England, N. Y. State, Michigan, Wisconsin, N. and S. Dakota, Washington, and Oregon.

Sun Sun Moon Rises. Sets. R. & S.

[blocks in formation]

31 Days.

Calendar for
Charleston,

Georgia, Alabama, Louisiana, Arkansas, Texas, New Mexico, Arizona, and Southern California,

Sun Sun Moon Rises. Sets. R. & S.

H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M.H. M

6 37 5 49

531

6 36 5 50 5 26

6 345 52 5 21

6 29 5 56 5 5

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

Places. Mar. Beg., A. M. Ends, P. M. Mar. Beg.. A. M.Ends, P. M. Mar. |Beg., A. M. Ends, P. M.

[blocks in formation]
[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

Day of

SUN ON MERIDIAN OF WASHINGTON.

Day of

Day of

Day of

Day of

Month H. M. S. Month. H. M. S. Month. H. M. S. Month. H. M. S. Month. H. M. S.

[blocks in formation]

Apr. Beg., A. M.Ends, P. M. Apr. Beg., A. M.JEnds, P. M. Apr. Beg., A. M.¡Ends, P. M.

11 59 29

24

11 58 13]

30

11 57 15

Places.

[blocks in formation]
« 上一頁繼續 »