They occur every 10 -15 years, with the last planetary alignment (syzygy meaning three or more planets are aligned) having been in 2009.
They occur about once a year. Called perigee-syzygy or perigee moons by the astronomical community, they occur when a full or new moon (syzygy) is closest in its orbit to the earth (perigee), when the sun, earth and moon are aligned.
Syzygy - The X-Files - was created on 1996-01-26.
· yak · yam · yap · yaw
Astronomers are lucky in their lifetimes to see a syzygy occuring in the outer level of planets, after the asteroid belt
A syzygy
The likely common word is syzygy (a combined or sequential form).In astronomy, syzygy is the direct alignment of three astronomical objects.
The cast of Syzygy - 2007 includes: Chiara Adorno as Voyeur Tracey Bergrud as Woman in dress
Rhythm Crwths, the plural of a Welsh musical instrument Syzygy Trysts
Syzygy
It is a syzygy.
There are no perfect rhymes; "syzygy" is the closest.