MPO Asteroid Viewing Guide - Daily Calendar
The Calendar displays the times of Sun and Moon rise/set, the beginning and end of
twilight (astronomical) and the positions of the Sun and Moon for the given time and date
along with the events occurring on the current date. If the current date is set outside
the active year of the program, e.g., 2008 when using MPO 2009, no data are displayed on
the tabs.
Clicking the buttons in the Events section displays all data for the program year,
regardless of the date setting.
Asteroids Tab
Displays those asteroids reaching opposition, brightest, or closest on the current
date.
DSO Appulses Tab
Displays those asteroids coming close to a deep-sky object on the current date. The tab
gives the position of the asteroid, its magnitude, the name, magnitude, and type of the
DSO, as well as the separation in arcseconds, position angle, and sun/moon elongations.
PPM Appulses Tab
Displays those asteroids coming close to a star in the PPM (Positions and Proper
Motions catalog) on the current date. The tab gives the position of the asteroid, its
magnitude, the name and magnitude of the star , as well as the separation in arcseconds,
position angle, and sun/moon elongations.
Mutual Appulses Tab
Displays those asteroids coming close to another asteroid on the current date. The tab
gives the position of the brightest asteroid, its magnitude, the name and magnitude of the
second asteroids, as well as the separation in arcseconds, position angle, and sun/moon
elongations.
Planets Tab
Displays the position of the other eight planets for the current date and time. The
position for Pluto is astrometric, meaning that it is corrected for light-time. The
difference is not significant because of the slow motion of Pluto.
