Remote Control

Hi all,
Does the remote for the D70 have the ability to send separate signals to open and close the shutter with separate button presses? I'd like to take some photos of the heavens and get very long star trails and this would seem to be the only way to do it without sitting there with my finger on the camera's shutter release button for several hours.
Thanks for any advice.
Ben
Does the remote for the D70 have the ability to send separate signals to open and close the shutter with separate button presses? I'd like to take some photos of the heavens and get very long star trails and this would seem to be the only way to do it without sitting there with my finger on the camera's shutter release button for several hours.
Thanks for any advice.
Ben