The Comet Search Report contains an ephemeris calculation for each object that meets the search properties. Times are accurate for the observer's location. Times and equatorial position values are shown in the format selected in Preferences.
Printed and exported documents contain a header section that on-screen documents provide in the settings pane of the document window. The header includes:
▪document name
▪observer's location (can be omitted from printing by activating the Print Saver)
▪search properties (can be omitted from printing by activating the Print Saver)
The body of the report (on-screen, printed, and exported) is column-oriented and the name of each column is listed below with a description. See Working with Reports to learn how to control content, layout and appearance of the report.
Column Name
Description
Object
Name assigned to the comet. If the comet's orbital elements are downloaded from the Minor Planet Center, this is the official designation of the comet. (See Updating Orbital Elements.)
Date and time at which comet reaches perihelion - closest point in its orbit to the sun.
Mag
Predicted Magnitude - these values are predicted by mathematical models and are not necessarily accurate. ICQ/CBAT/MPC maintains recent magnitude estimates for many comets at: http://www.icq.eps.harvard.edu/CometMags.html
Elng
Angular distance from the object to the sun (sun-earth-object angle)
Volume and page number on which the object appears in Uranometria 2000.0. Note that there is some overlap in the two volumes, but the page number is valid for either volume
Volume and page number on which the object appears in Uranometria 2000.0 2d Ed. Note that there is some overlap in the two volumes, but the page number is valid for either volume
Distance between object and earth measured in astronomical units (au).
Dist (Sun)
Distance between object and sun measured in astronomical units (au).
Rise(Az), Set(Az)
Time of rise, set, and apparent azimuth at rise and set time for your location. If your location has a local horizon model defined for it and the model is applied to the ephemeris calculation, rise & set times are the approximate times at which an object rises above and sets beneath the local horizon model.
