eclipse seasons

eclipse seasons

[i′klips ‚sēz·ənz]
(astronomy)
The two times when the sun is near enough to one of the nodes of the moon's orbit for eclipses to occur; this positioning occurs at nearly opposite times of the year, and the eclipse seasons vary yearly because of westward regression of the nodes.
References in periodicals archive ?
The four battery packs on board, which are comprised of VES 140S cells, will power the satellite during the two 45-day eclipse seasons each year while in orbit.
Any spacecraft observing the sun from an orbit around Earth has to contend with such eclipses, but SDO's orbit is designed to minimize them as much as possible, with only two three-week eclipse seasons each year.
Washington, Mar 12 ( ANI ): NASA's Solar Dynamics Observatory (SDO) entered its semi-annual eclipse season on March 2, 2013 - a period of three weeks when Earth blocks its view of the sun for a period of time each day.
The rechargeable Li-ion batteries will deliver the satellite power during two eclipse seasons per year when the spacecraft is blocked from the sun.