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AGET N378 1954

COPYRIGHT 1904

BY THE TRIBUNE ASSOCIATION

FOR CONTENTS AND INDEX SEE END OF VOLUME.

Prepared by Berlin H. Wright, Penn Yan, N. Y.

: 1

ECLIPSES. There will be but two eclipses this year, and both of the sun. This is the least number that can occur in a single year, and when this does happen both must be of the sun. They are as follows:

I. An annular eclipse of the sun March 17, Invisible in the United States, except in the Philippine Islands and Guam. It will be visible generally throughout Southern Asia, Indian Ocean, Eastern Africa and in the Western Pacific Ocean. The path of the annular phase passes through the Philippine Islands north of Manila, Southern Siam and Northern Sumatra to Cape Delgado..on the east coast of Africa, touching the northern point of Madagascar.

II. A total eclipse of the sun September 9, invisible in the United States, except in Hawall, where the eclipse will be upon the southern limb of the sun and about six digits.

THE PLANETS.
Mercury will be brightest:
(1) As an evening star, east of sun: (2) As a morning star, west of sun:
Jan. 1-4 (a)

Feb. 1-4 (a)
April 6-9
Setting shortly after

July 2-5 (b)

Rising shortly before

the sun. Aug. 21-23 (b)

the sun.

Oct. 1-5 Dec. 13-16

The dates marked (a) and (b) are the most favorable for visibility, Greatest Eastern elongations of Mercury Greatest Western elongations of MercuryJanuary 1....

19° 30'

February 10. ................. 25° 52' April 21......

20° 12' June 8...

............... 23° 46' August 20.. 27° 21 October 1....

17° 54' December 14.

20° 30 Venus will not reach her point of maximum brilliancy at all this year, but she will be brighter at the close of the year than at any other time. Until July 8 she will gradually grow dimmer and, from the half-moon phase which she had toward the close of 1903. take on a gibbous phase. On July 8 she will be in superior conJunction with the sun, that is, on the same side of the earth as the sun, rising and setting with the sun, and hence invisible. in a few days after she may be seen as an evening star on the other side of the sun. From that time on she will grow brighter as she gradually overtakes the earth and nears her point of interior conjunction, when she will come between the earth and the sun. This will not take place in 1904. (See table for time of rising and setting.)

Mars, like Venus, will not reach his maximum brilliancy this year. He will be a bright and interesting object, however, at the beginning and close of the year. (See table for rising. southing and setting.)

Jupiter will be brightest October 18, being then at opposition or 180° from the gun, and rising as the sun sets. (See table of rising, southing and setting.)

Saturn will be brightest August 10 as an evening star. (See table of rising. southing and setting.)

Uranus will be brightest June 19 as an evening star.

Neptune will be brightest December 28 as an evening star. MORNING STARS WEST OF SUN. EVENING SIARS EAST OF SUN. · Interior planets.

Inferior planets. Mercury (6), from Jan. 17 to March 26, Mercury, until Jan. 17 and from March 26

May 13 to July 9, Sept. 15 to Oct. 31. to May 13, from July 9 to Sept. 15 Venus (!), until july 8.

and after Oct. 31. Superior planets.

Venus, after July 8.
Mars (8), after May 30.

Superior planets.
Jupiter (), from March 27 to July 21. Mars, until May 30.
Saturn (Ķ), from Feb. 1 to May 11.

Jupiter, until March 27 and after July 21. Uranus (i, until March 20 and after Saturn, until Feb, 1 and after May 11. Dec. 22.

Uranus, from March 20 to Dec. 22. Neptune (¥), from June 27 to Oct. 1. Neptune, until June 27 and after Oct. 1.

THE SEASONS (EASTERN STANDARD TIME).

D. H. M. Winter begins, 1903, Dec. 22. 7 hours, 12 min., eve., and lasts...

89

0 38 Spring begins, 1904, March 20. 7 hours, 50 min., eve., and lasts.

92 19 53 Summer begins, 1904, June 21, 3 hours, 43 min., eve., and lasts..

93 14 49 Autumn begins, 1904, Sept. 23, 6 hours. 32 min., morn., and lasts.

89 18 29 Winter begins. 1904, Dec. 22, 1 hour, 1 min., morn. Tropical Year.....365 5 49

Sun north of the equator 186 days, 10 hours, 42 minutes; sun south of the equator 178 days, 19 hours, 7 minutes: difference, 7 days, 15 hours, 35 minutes, longer north of the equator than south of it, due to our greater distance from the sun at that time and our consequent slower orbital motion.

119431

TABLES FOR SURVEYORS AND ENGINEERS.
Computed by Berlin H. Wright. Meridian of Washington. Mean Time.

OCHIQ
Polar distance of
Polaris

E. 11 11 48

+ Sidereal noon, or Meridian passage of the Vernal Equinox

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Latitude
45° North..

Latitude
43° North..

6 19 24 E 1 12
H.M.S.
4 40 5 E.
4 046
3 17 31 E.
2 38 12
1 58 53

11
6 43 26 E.
6 3 49 E.
H.M.S.
4 40 54 E.
6 24 20

44 M. 10
1 26
3 21 57 E.
2 7 3 E.
2 46 28
1 27 18

46 28 M.
15 0 5 2 E. 110
11 0 44 40
12

58
40 1 42 31

36

39 4
26
28
35
41

48
1 36
40
40
40
41
43

34
2 1 23 5411 27 551 30 1211 82 40/1 35 24/1 38 2911 41 53

10

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Latitude
41° North..

OOR

Latitude
89° North..

AZIMUTH OF POLARIS AT GREATEST ELONGATION, EAST OR WEST.

25 33 1 27 36 1 29 51 1 32 2011 36 51 88 711 41 291

Latitude
37° North..

Latitude
35° North..

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Latitude
33° North..

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53
62
45
34
31

26
11
11
21
11

21
December .131)1 22 211 23
September
September
September
October ...
October ...
December (11
August
November
August
November
December (21
November
August
Juno
December 11
June
June
July
October
July
July

IT

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*Subtract or add 11h. 58m. 2s. for the previous or succeeding passage as required. Add 9.83s. for each hour east of Washington and subtract same for each hour west.

†For intermediate dates interpolate,

The azimuths in the above table, applied properly to the magnetic bearing of Polaris at the time of its greatest elongation east or west, will give the true variation of the magnetic needle from a true north direction. and will be of great use to all surveyors and engineers. When the elongation is east the azimuth will be east, and vice versa. At the present time the line of "No Variation" of the needle runs southeasterly from near Toledo, Ohio, to a point on the Atlantic Coast about fifty miles southwest of Cape Fear, N. C. East of that line the north end of the needle points west of a true north, and west of that line east of the true north. The country may therefore be divided into eastern and western magnetic regions. In the "Eastern

Region' the bearing of Polaris at its westerni elongation, if eastward, added to the azimuth, gives the desired variation west; but if westward, the bearing taken from the azimuth gives the variation west. The bearing of Polaris at its eastern elongation will be eastward, and the azimuth subtracted therefrom gives the variation west. in the "Western Region' the bearing of Polaris at its eastern elongation, if westward, added to the azimuth, gives the variation east; but if eastward, the bearing taken from the azimuth gives the variation east. The bearing of Polaris at its western elongation will be westward, and diminished by the azimuth gives the variation east.

The azimuths in the table, given for two degree zones, are practically sufficient for all the United States except Alaska. For intermediate latitudes, and dates, the azimuths may be found by proportion sufficiently correct, or exactly by the formula, log sine azimuth equal log sine Polar distance of Polaris, minus log cosine latitude. The surveyor or engineer is on the line of "No Variation'' when the bearing of Polaris at greatest elongation is the same as the azimuth.

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TO FIND THE TIME OF GREATEST ELONGATION OF POLARIS.

By adding the numbers in the annexed table for any given latitude to the time of meridian passage of Polaris (the Poie Star), the time of its greatest western elongation is found. If the same number be subtracted, instead of added, we get the time of greatest eastern elongation. At the time of either elongation the magnetic bearing

may be taken with the tranLati- *Constanti Lati-*Constant | Lati- Constant

sit compass, using that elontude, for elon tude, for elon tude, for elon

gation which occurs at night. north. gation. north. gation. north. gation.

The eastern elongations OC-
H.M.S.
H.M.S.

H.M.S. cur at night from April 1 29 00 5:56:14 34 30 5:55:34 40 00 5:51:18

to October 11, and the west29 30 5:56:11 35 00 5:55:30 40 30 5:54:44

ern elongations occur at 30 00 5:56:07 35 30 5:33:26 41 00

5:51:39

night all the rest of the year. 30 30 5:56:03 36 0 5:55:22 41 30 5:54:35

Correct local time is to be 31 00 5:56:00 36 30 5:53:18 49 00 5:54:30

used, and bearings on the 31 30 5:55:56 37 00 5:55:14 42 30! 5:51:35

star taken promptly on time; 32 00 5:55:53 37 30 5:55:10 43 00 5:54:20

but an error of half a min32 30 5:55:50 38 00 5:55:06 43 30 5:54:15

ute or even a minute in the 33 00 5:55:46 38 30 5:55:02 41 00 5:54:10

timepiece will not invalidate 33 30 5:55:42 39 00 5:51:57 44 30 5:54:05

the bearing, as Polaris moves 34 00 5:55:28 39 30 5:54:53 45 00 5:51:00

ther nearly vertically.

*When the lower transit is used subtract these constants from 11h. 58m. 2s., reversing the rule of application to the meridian passage given above for the time of elongations, subtracting the constants obtained from the meridian passage for western and adding for eastern elongations. MOON SOUTH, OR ON THE UPPER MERIDIAN, 1901.

AT WASHINGTON. Jan. Feb. Mar. Apr. May. | June July Aug. Sept. Oct. Nov.) Dec Days. MO. Mo.

Mo. Mo.

Μο, Mo. Mo. Mo. Mo. Mo. Mo. Mo. 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 11 01 Mo. Mo. 12 14 1 10 2 29 2 45 33+

4 23

1 51 6 26 7 1 Mo. 12 411 12 16 1 38 2 4 3 18

3 23 4 17 5 16 5 48 7 20 7 53 12 11-139 1 121 2 31 2 57 4 5 4 12 5 0 6 7 6 43 8 14 8 46 1 2 2 35 2 6 3 25 3 48 4 50

5 46

7 39 9 8 9 39 2 2 3 28 3 0 4 17

4 38 5 34 5 37 6 33 737 8 35 10 2 10 31 2 59 4 20 3 53 5 8 5 25

6 17

6 21 7 24 8 55 9 31 10 57 11 29 3 54

4 45 5 58 6 11 6 59 7 6 8 18 9 53 10 27 11 53 Ev.24 4 461 6 2 5 36 6 15 6 55 7 43 7 53 9 15 10 511 11 22 Ev. 48 1 19 9

5 37
6521
6 26
7 32
7 39

8 27 8 43 10 13 11 48 Ey.18 1 44 2 12 10 6 26 741 7 15

8 16 8 21 914 9 37 11 131 Ev.45 1 14 2 39 3 3 7 16 8 31 8 3 90 10 4 10 31 Ev.12 1 40

2 9 3 33

3 51 12 8 51 9 19 850 943 9 49 10 561 11 321

1 10 2 35 3 5 4 2+ 4 37 13

8 541 10 7 9 35 10 26 10 35 11 12 Ev.32 2 6 3 29 3 59 5 12 5 21 14 9 44 10 53 10 20 11 10 11 23 Ev. 19 1 31 3 0 4 23 4 52

5 58

6 3 15 10 33 11 38 11 31 11 55 Ev.14 1 47

2 28 3 53 5 16 5 43 6 43 6 45 16 11 22(Ev.22 11 46| Ev.41 1 7 2 45 3 23

4 46
6 8
6 31

7 26 7 28 17

Ev. 9 1 5 Ev.29 1 30 2 2 3 11 4 JB 5 38 6 59 7 18 8 8 8 12 18 12 55 148 1 13

2 21 2 59
4 36 5 8

6 30 7.48 8 3 8 50 8 58 19 130 2 31 1 58 3 13 3 55 5 291 5 59 7 22 8 35 8 46

9 31

9 45 20 2 24 3 14 2 44 4 8 451 6 201 6 51 8 12

9 21

9 29 10 181 10 36 21 3 6 3 59 3 33 54 5 46

7 11 7 42 9 2 10 5 10 12 11 5 11 29 22

3 49 4 46 4 24 5 59 6 39 98 8 33 9 51 10 49 10 54 11 51 Mo. 23

4 32 5 36 b 17 6 55 131 8 53 9 25 10 381 11 31 11 38 Mo. 12 24 24 5 16 6 29 6 12 7 49 8 22 9 45 10 15 11 23 Mo. Mo. 12 46

1 21 25 63 7 24 7 9 8 +3 9 14 10 381 11 5

12 14 12 23 1 39 2 17 26

6 52 8 22 8 6! 9 361 10 6 11 29 11 54 12 7 12 57 1 10 2 34 3 13
744 9 21
9 3 10 301 10 59

MO.

12 50 1 40 2 0 3 29 8 40 10 20 9 59 11 23 11 52 12 21 12 41 1 33 2 26 2 51

4 23 4 59 9 39 1119) 10 51 Mo.

Mo.
1 10 1 26
2 15 3 13 3 44 5 17

5 51 30 10 401

11 191 12 16 12 45 1 59 2 9 2 58 4 2 4 38 69 642 31 11 41 Mo 1 38 2 52 3 42

5 22

794 Note.--Add two minutes for each hour of longitude west of Washington.

00 ONA ON

5 11

MO.

Mo.

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mean time.. lan passage,

mean time..
and setting.
For rising

2

N

H. M. S.

H.M. H.M. Alpheratz Andromeda..

2.1 0 3 20 +29 33 38 0 8 7 62 Caph (Var.). Cassiopela..

2.4 0 4 3 +58 37 13 0 4 Algenib Pegasus.

2.8 0 8 17 +14 39 0 0 8 6 51 Alpha Phenix..

50

0 21 24 -43 18 43 0 12 *2 23 Schedir (Var) Cassiopeia..

2.3

0 33 3 +56 0 39 035 Diphda Cetus (Whale),

2.2 0 38 46 --18 30 48 0 88 4 53 Gamma Cassiopeia..

2.3 50 54 +60 11 49 0 80 Mirach Andromeda.

2.21 1 4 21 +35 € 12 1 4 8 29 Caph ........ Ursa Major.

2 2 1 24 16 +88 47 42 1 24 Achernar Eridanus.

0.4 1 34 8 57 43 28 1 34 Sheratan Aries (Ram) (P).

2.8 1 49 20 + 20 20 20 1 49 7 14 Almaach Andromeda.

2.2 1 58 0 +41 52 10 1 57 9 21 Hamel Aries (Ram).

2.1 2 1 46 +230 31 2 1 7 26 Mira (Var.). Cetus (Whale)

2-10) 2 13 28 - 3 37 9 2 13 5 48 Menkar Cetus (Whale).

2.6 2 57 16 +3 42 48 2 56 6 13 Algol (Var.). Perseus.

24 3 1 55 +40 35 10 3 0 9 10 Marfak Perseus.

1.9 3 17 28 +49 31 12 3 18 Alcyone

Taurus (Pleiades, or 7 stars 3.1 3 41 47 +23 48 31 3 41 7 29 Aldebaran Taurus (Bull) (86.

1.0 4 30 25 +16 19 0 4 29 6 58 Capella Auriga. 0. 59 36 +45 54 3

10 14 Rigel Orion..

0.3 5 9 55 - 8 18 44 6 9 B 31 El Nath. Taurus.

1.8 0 20 13 + 28 31 36 5 19 7 52 Mintaka Orion (Ell and Yard).

2.3 5 27 6 0 22 12 6 26 5 69 Al Nilam.

Orion (Middle of Yard, or
Belt)....
1.8 5 31 21 1 13 46 6 30

5 56 Phát. Colomba... 2.7 5 36 10 --34 7 30

0 35 *3 37 Saiph. Orion...

2.3 5 43 12 - 9 42 12 6 42 5 26 Betelguese Orion (Var.)...

0.9 5 49 58 + 7 23 22 6 49 6 26 Menkalina Auriga..in

2.0 5 52 29 +44 56 17 5 51 9 53 Canopus Argus.

0.8 6 21 49 --- 52 38 35 6 21 Al Hena.. Gemini (Twins) (1) 2.0 6 32 10 +16 28 64

6 81

6 59 Sirius(DogSt’r) Canis Major.

-1.41 6 40 55 ---16 35 3 6 40 0 1 Adara Canis Major. 1.5 6 54 51 -28 50 28

4 7 Castor Gemini. (Twins).

1.9 7 28 29 +32 5 89 7 27 8 11 Procyon (var.) anis Minor.

0.5 7 34 17 + 5 28 16 7 33 6 19 Poilux Gemini.

1.2 7 39 27 +-28 15 30 7 38 7 50 Beta Cancer (Crab) (5)

3.8 8 11 19 + 9 28 54 8 10 6 33 Alphard Hydra.. 2.1 9 22 52 - 8 14 32

9 21 0 31 Regulus Leo (Lion) (82).

1.3 10 3 16 +12 26 12 10 1 6 44 Sla Argus..

1.6 10 41 20 --59 10 47 10 89 Dubhe Ursa Major.

2.0 10 57 49 +62 16 10 10 56 Denebola Leo (Lion)

2.2 11 44 10 +15 6 32 11 42 6 64 Acrux Southern Cross.

0.9 12 21 15 -62 34 1 12 19 Beta Corvus (Crow).

2.8 12 29 21 -22 51 57 12 27 Spica Virgo (Virgin) (179).

1.1 13 20 8 ---10 29 37 13 18 5 23 Centaurus. Agena

0.7 13 57 3 --59 54 36 13 54

$ Arcturus Doctes.. 0.2 14 11 17 +19 40 55

14 9 7 12 Bengula Centaurus.

0.2 14 33 8 60 26 22 14 30 $ Alpha Lil:ra (Scalex) (^).

2.9

14 45 34 ---15 38 33 14 43 5 4 Kochab Ursa Minor....

2.3 14 50 59 +74 32 52 14 48 Alplacea. Northern Crown.

2.3 15 30 37 +27 2 14 15 28 7 44 Unuk Serpent hearer.

2.7 15 39 32 + 6 43 39 15 37 6 23 Antares Scorpion (m)

1.2 16 23 31 ---26 13 9 16 20 4 20 Rutilicus Hercules....

2.8 16 26 6 +21 41 54 16 23 7 20 Etamin Dragon.

2.5 17 64 23 +51 30 0 17 51 Vega Lyre. 0.2 18 33 41 +38 41 39

18 30 8 54 Delta Sagittarius (7).

2.3 18 49 19 ---26 24 59 18 46 4 19 Allair Eagle.

0.9 19 46 6 + 8 36 82 19 43 6 30 Alpha Capricern (63).

3.7 20 12 44 12 60 34 20 9 5 55 Deneb Cygnus (Swan).

1.4

20 38 10 +44 56 13 20 35 9 59 Alderamin Cephus.

2.6 21 16 17 +62 10 43 21 12 Beta Aquarius (m)

29 21 26 30 5 59 38 21 23 5 39 Cuit Pegasus..

2.4 21 39 28 + 9 26 0 21 36 6.32 Sepha Tha Crare.

1.9 22 2 11 --47 25 34 21 58 *1 21 Bonialhaut Pisces Australis.

1.3 22 52 21 --30 7 52 22 48 Morkab Pegasus. .. 2.5 23 0 0 +14 41 19 22 56

652 Jota Pisces (*)...

4.3 23 38 1 + 5 6 21 23 31 6 17 Explanation.--To ascertain when any star or constellation will be on the upper

4 37

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