Explanation of the Planetary and Lunar Elongation Calendar request form

General Comments

The form allows you to choose a year and hemisphere view, make a choice of grayscale or color, and get a planetary and lunar elongation calendar for that year. The defaults are the current year in the US Central Time Zone, the northern hemisphere, and grayscale (no color).

In the northern hemisphere, the Sun, Moon and planets rise in the east, climb into the southern sky, and set in the west. Thus, since a northern hemisphere observer faces south to see these objects at their highest, it is natural to put east on the left and west on the right in the chart. In the southern hemisphere, the objects rise in the east, climb into the northern sky, and set in the west. Thus, the southern hemisphere view has east on the right and west on the left.

The calendar is returned as a PDF file.

The calendar is meant to be printed. The resolution of most video screens is too low to be able to distinguish between the different lines indicating the tracks of the planets. If you are going to print it on a black and white printer, use the grayscale option. The color version will print poorly on a black and white printer. In any case, make sure that you are printing at the highest resolution possible for your printer.

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Sample Form

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Form fields

Field	Max Length	Example	Min	Max	Default
Year	4	2000	1885	2099	Current year, US Central Time Zone
Hemisphere View	checkbox	Northern	Northern	Southern	Northern
Grayscale or Color	checkbox	Grayscale	Grayscale	Color	Grayscale

Click here to get a planetary and lunar elongation calendar using all the defaults, or use your browser's back button to return to the form that you were working with.

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Copyright 2020 Dale A. Dellutri
Last modified: Saturday, 09-May-2020 16:29:08 EDT