Double or Full beds are 15 wider than a Twin, but if two share the bed, each has only 27 of personal space -- much less than a twin! A Queen bed is 6 wider than a Double bed, allowing more room for each person, but still 9 less than a twin bed.
The two points at which the Moon's orbit crosses the Earth's orbital plane are called the nodes of the Moon's orbit. So another way to state the conditions for a lunar eclipse is that (1) it must be full moon, and (2) the Moon must be at or quite near one of the nodes of its orbit. î î î.
An annual solar eclipse requires the moon to pass centrally in front of the sun, but occurs when the moon is at too great a distance to occlude the sun completely.A total eclipse occurs when the moon is able to occlude the sun completely and happens somewhere on Earth approximately every 18 months.