2005/04/09
Dear All,
The Moon was not seen from
Last Thursday, April 7th 2005, I saw the old Moon from Maale Adumim till it faded at 06:17. (T 11.5°C, P 968mbar, RH 44%) The old Moon is the opposite of the New Moon in position, orientation and time. The old Moon appears in the East, generally tilted the opposite direction to the New Moon and fades gradually as it moves upwards. Geometrically, the parameters for the old Moon are the same as for a New Moon. Therefore one could assume that observations of the old Moon can be used to develop criteria the appearance of the New Moon. However, the atmospheric conditions are different in morning and evening so this may not be strictly true. Nonetheless, several years of observations have not yet proved that there is a difference. The observation of old Moons is important, if they are the same as New Moons, then they add to the number of observations and if they are different, the difference has to be proven before discarding such observations. If you are interested in observing old Moons, please contact me.

The old Moon as seen from
Yours,