Date :

Universal Time (UT). UT is effectively equivalent to Greenwich Mean Time.

Star :

ZC indicates the star number in Robertson's Zodiacal Catalog.

S indicates the star number in the SAO Catalog.

A link is provided to information on double stars.

Mag :

Star Magnitude.

%Snlt :

Percent sunlit of the moon. "+" is waxing (before Full Moon) and "-" waning. Before Full Moon the star will appear to approach the moon from its dark side. After Full Moon the star appears to approach across the lighted lunar limb.

Near Place ... :

Lists some cities or towns close to the path, but not usually on it. Click on them to bring up OCCULT predictions and a profile for this graze. Once downloaded and saved, you should view the file with a non-proportional font (e.g. Courier 10 point) to preserve the formatting if saved as a text file.

Time :

Approximate hour and minute of graze (Universal Time). For sites to the west times may be a minute or so earlier whilst to the east they may be a little later. Events may occur for a minute or two either side of the predicted time.

Alt :

Altitude of the star and Moon.

CA & Limit :

The Limit indicates whether the star grazes the Northern or Southern edge of the Moon. The associated figure shows the number of degrees round the circumference of the Moon from the bright cusp at which mid graze occurs. The centres of all grazes given above are on the unlit portion of the limb unless otherwise indicated.

Notes :

This gives further information about the graze and star. Most grazes should be observable with a telescope aperture of 100mm. If a larger aperture is likely to be needed this is indicated.

If the grazing star is a double, a link is provided to a table showing: the magnitudes of the components, the separation in seconds of arc, and the Position Angle of the secondary component from the primary.

If you need help consult the following:

[Top of Page]   [Return to Home Page]