- From: select first planet
- To: select second planet.
- To swap planets, select other planet in planet combobox
- Pan Left: scroll to an earlier time
- Recenter: move selected time to the screen middle
- Pan Right: scroll to a future time
- Zoom out: show a wider range of time
- Zoom in: expand to show a narrower range of time
- Prev Event: show next earlier event selected by selectors
- Next Event: show next later event selected by selectors
- Return to now: display the current time in the center of display
- Capture graph: generate a URL that duplicates the current display
- URL: captured URL. (It is also in address bar)
- Home: go to main planetary page
- Units: kilometers, AU or miles
- Distance: selects max/min distance
- Speed: selects max/min speed
- Acceleration: selects max/min acceleration
- Alignments: selects conjunctions, oppositions, quadrature and max elongation
- Orbit events: selects perihelion and aphelion
- For some outer planets, the speed or acceleration selectors are disabled
- Select UTC or local timezone
- Hide selectors: hide the units, checkboxes and time zone
When you drag the mouse on the graph, it will change the display
Dragging left and right will move to the past or future
Dragging up zooms in to a narrower time range
Dragging down zooms out to a wider time range