Error message

Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in menu_set_active_trail() (line 2405 of /home/newca162/public_html/includes/menu.inc).

Comets

Subscribe to Syndicate

While some imaging of comets is performed to get "pretty pictures", the main use of these images is to determine photometry that measures how the brightness of the comet changes over time and derive precise positions - astrometry.  The photometry and astrometry data is reported to the Minor Planet Center and other organizations.