Dictionary > Ecliptic

Ecliptic

Ecliptic
1. (Science: astronomy) a great circle of the celestial sphere, making an angle with the equinoctial of about 23 deg 28′. It is the apparent path of the sun, or the real path of the earth as seen from the sun.
2. (Science: geography) a great circle drawn on a terrestrial globe, making an angle of 23 deg 28′ with the equator; used for illustrating and solving astronomical problems.
Origin: cf. F. Ecliptique, L. Linea ecliptica, gr, prop. Adj, of an eclipse, because in this circle eclipses of the sun and moon take place. See ecliptic.
1. Pertaining to the ecliptic; as, the ecliptic way.
2. Pertaining to an eclipse or to eclipses.
(Science: astronomy) lunar ecliptic limit, the space of 12 deg on the moons orbit from the node, within which, if the moon happens to be at full, it will be eclipsed. Solar ecliptic limit, the space of 17 deg from the lunar node, within which, if a conjunction of the sun and moon occur, the sun will be eclipsed.
Origin: L. Eclipticus belonging to an eclipse, gr. See eclipse.


You will also like...

Sensory systems
Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..

Geological Periods
Geological Periods

Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..

Selective Breeding
Selective Breeding

Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..

Oligodendrocyte and Schwann cell
The Central Nervous System

Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

sponge
Primitive Animals

Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..

Independent Assortment and Crossing Over
Independent Assortment and Crossing Over

This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..