Since the ascending node is the point of intersection between the ecliptic and the plane of the lunar orbit where the Moon is ascending from the South to the North, it is sometimes called the North node.
42.
The lower section provided a 24-hour dial and a large calendar drum, showing the fixed feasts of the church, the movable feasts, and the position in the zodiac of the moon's ascending node.
43.
The primary direction is established by projecting the Earth's orbit onto the celestial sphere, forming the ecliptic ( red ), and setting up the ascending node of the ecliptic on the celestial equator, the vernal equinox.
44.
Currently that alignment occurs within a few days of May 8 ( descending node ) and November 10 ( ascending node ), with the angular diameter of Mercury being about 12 " for May transits, and 10 " for November transits.
45.
In the case of objects outside the Solar System, the ascending node is the node where the orbiting secondary passes away from the observer, and the descending node is the node where it moves towards the observer ., p . 137.
46.
In the case of orbital elements for objects within the solar system, only a few of the classical orbital elements are affected by a switch of equinox : the longitude of the ascending node, and ( to a much lesser extent ) the inclination.
47.
This term is sometimes erroneously used for the draconic or nodal period of lunar precession, that is the period of a complete revolution of the Moon's ascending node around the ecliptic : Julian years ( days; at the epoch J2000.0 ).
48.
I have no idea if editors will care for data such as right ascension of ascending node and argument of perigee, but it's very easy to give them that option when addressing the more pressing issue of simple things like orbit number and altitude.
49.
The orbits of the three spacecraft should then have the same apogee longitudes ( for example 90?W and 90?E ), but pass the apogee with eight hours shift; i . e . the right ascensions of the ascending nodes should be separated with 120?
50.
For computation it is then, by convention, set equal to zero; that is, the ascending node is placed in the reference direction, which is equivalent to letting "'n "'point towards the positive " x "-axis.
