Reference Star Match Error

This dialog appears whenever the automatic reference star match has apparently failed: That is, either the mean residual in either Right Ascension, Declination, or magnitude of the reference stars is larger than the value specified in the program settings, or less than half of the reference stars were used for the final astrometric solution. This dialog also appears if less than six reference stars were used.

The dialog asks the user how to proceed, and the user may choose between three option:

Manual Reference Star Match: This option allows the user to manually align the reference stars from the star catalogue and the stars seen in the image.
Automatic Reference Star Match: Retry the automatic reference star match with more stars then specified in the program settings. Note, however, that increasing the number of stars used for the match will increase the runtime noticeably.
Present Match: Accept the current, possibly erroneous, match. Use this option with great caution!