MOON'S PLACE AT 7 P. M. AND SOUTHING OR UPPER MERIDIAN PASSAGE FOR MERIDIAN OF WASHINGTON. Sign.. X Feb Con.. Sign. X 1..... 7 In H.M 59 1 50 2 40 ရာ 4 14 8 3..... 4.....= 5..... In H.M 212 2 58 X Mer. Mer. Mer. H.M 53 8P 200 8 5 31 619 7 03 659 mR 6 46 735 7 45 8 26 9.08 8..... 6 33 807 MOON'S PLACE AT 7 P. M. AND SOUTHING OR UPPER MERIDIAN PASSAGE FOR MERIDIAN OF WASHINGTON.-(Continued.) The signs of the Zodiac and Parts of the human body supposed to be affected by the same: Pisces, feet; Aries P, head; Taurus 8, neck; Gemini П, arms; Cancer, breast; Leo, heart; Virgo m, bowels; Libra, kidneys; Scorpio m, loins; Sagittarius 7, thighs; Capricornus, knees; Aquarius, legs. THE MEMBERS OF THE SOLAR SYSTEM, *DISTANCE FROM THE EARTH IN LIGHT YEARS OF CERTAIN FIXED •Explanation.-The term "Light Year" is the time required for light to travel from these bodies to the earth. Their actual distance, in miles, being too great for use or comprehension, the distance, in miles, may be found by multiplying the velocity of light (188,000 miles per second) by the number of seconds in a year, and that product by the light years." Thus: Alpha Centauri 8.6X183,000×365×24×60×60 miles distant. DEGREES OF TEMPERATURE FREEZE, AT WHICH CERTAIN SUBSTANCES COPYRIGHTED 1908 BY B.H. & B. N. WRIGHT, DE LAND, FLA, Scale of Magnitudes. 9234 THE CHART OF THE HEAVENS. The Chart of the Heavens shows all the bright stars and groups visible in the United States, Canada, Cuba and Hawaii. Stars of the third magnitude are sometimes shown in order to complete a figure. If a bright uncharted body be seen near the "Ecliptic Circle" it must be a planet. To locate the planets or Moon, refer to the earlier each day, or thirty minutes a week, or two hours a month. The chart shows the position at 9 p. m. Then, if the position for any other hour be desired, as for 7 p. m., count back one month, or ahead one month, for 11 p. m., and so on for any hour of the night. A circle described from the zenith on the "Zenith Circle" for the desired latitude with the radius of 90 degrees (see graduated meridian) will show what stars are above the horizon. Thus, Cap ella is near the overhead (zenith) point on latitude 40 degrees North, January 15, 9 p. m., as will be Algenib in the handle of the "Big Dipper" at 3 a m. Then, from Capella or Algenib all the surrounding visible groups can be identified. The dot-dash circles in dicate the visible constellations at 9 p. m., January and July, for 40 being 5 degrees apart and always in sight, may be used as a convenient unit of measure; also, when degrees latitude. The "Pointers," visible, the "Belt of Orion,' " 3 degrees, or the sides of the "Square of Pegasus." Nov. Looking N 40 CHART SHOWING RELATIVE DURATION OF TWILIGHT, DAYLIGHT AND DARKNESS FOR LAT. 42°+. Note.-Twilight is considered to last until the Sun is 18° below (vertically) the horizon, and to begin when the Sun reaches a similar point in the morning-or 18° before sunrise. When the line on which this 18° is measured is shortest then the twilight will be the shortest, and vice versa. This causes the shortest twilights to occur in the winter months in northern latitudes, and longest in summer. 1h. 45m. By an examinaion of the chart we find the measure of twilight, darkness and daylight of the 24 hours to be: Jan. 1, Length of day .8h. 54m. June 21, Length of day .15h. 34m. Length of twilight Length of twilight.. 2h. 30m. The remainder of the space will more than make the 24 hours, which is due to refraction of light, which causes an increase in the apparent length of the day, as also of duration of the twilights. This apparent error is greatest in the winter months, as the Sun then shines through a denser and deeper atmospheric envelope. |