Meridian Passage to Monsoons

The passage of a heavenly body over the meridian.

Sailing due north or south-opposed to parallel sailing.

The complement of the meridian altitude, or what that altitude lacks of 90 deg.

The amount representing the same proportion to the difference of latitude that the difference of longitude represents to the departure.

In the direction of the meridian.

According to Mercator's system, parts of the projected meridian which correspond to each minute of latitude from the equator towards the poles.

A projection of a sphere, the plane of projection being parallel to the meridian.

(See Shooting Stars.)

(See Shooting Stars.)

The point situated midway on a north and south line between two parallels; middle latitude is half of the sum of two latitudes of the same name, but half of the difference of two latitudes of different names.

Shaping a course and finding the distance between two points by considering that the parallel to sail on is the mean between the latitude in and the one sought.

When a vessel is hove-to she will come up and fall off continually. The point midway between this coming up and falling off is termed the middle point, and to this, the accepted course of the vessel, is applied the leeway, deviation and variation, in order to obtain the true track that the ship has made.

In high northern and southern latitudes during the summer season of the year the sun does not set, and at 12 o'clock at night it crosses the meridian 180 deg. (half circle) distant from the meridian which it crossed over at noon; hence the name, the midnight sun.

A measure of distance; the common mile is called a statute mile--5,280 feet; the nautical, geographical and sea mile is the mean length of a minute of latitude--6,082.66 feet; a nautical mile is termed a knot.

A white, luminous band of irregular form stretching across the heavens, which, viewed through a telescope, is found to consist of millions of stars.

(See Planet.)

The sixtieth part of one hour and the sixtieth part of a degree; a mile of latitude is expressed as a minute of latitude.

A minute of angular measure; a minute division on the quadrant, octant, sextant, etc.

A northwest wind experienced in the Mediterranean Sea.

(See Calendar, Synodical and Anomolistic Month.)

Diameter about 2,160 miles; mean distance from the earth, 238,800 miles; average velocity of revolution, 2,280 miles per hour; sidereal period of revolution, 27d. 7h. 43m.; mean apparent diameter, 32 min.

A star coming to the meridian at the same time with the moon.

Time elapsed since the last conjunction--given for every day of the month in the nautical almanac.

The moon's greatest distance from the earth.

The moon's least distance from the earth.

The moon's passage over the meridian.

Winds in the Indian Ocean which blow from the southwest from April to October, and from northeast from October to April.