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Science image of a bright star

Tracking: Now, switch on tracking on the control panel

Dome tracking: Switch on auto dome in the upper right corner of the OLT control main window. The dome now automatically tracks the movements of the telescope.

Go now to the position panel (Fig. 4) selecting pos.

Select a bright star from the built-in catalog: Press list and select the list brightstars. Select an appropriate star near the zenith by clicking on the star with the left mouse button.

Press exec to start positioning of the telescope. Wait until the message "positioning finished" is displayed.

Figure: Upper left: The position panel with the pull-down menu to select an object catalog opened. Upper right: The object catalog brightstars.lst opened. Lower center: The position panel after selection of a star from the catalog.
\includegraphics [width=8cm]{bright_list1.ps}
\includegraphics [width=8cm]{bright_list2.ps}
\includegraphics [width=8cm]{bright_list3.ps}

Expose: Choose an exposure time (try 10 sec. to start with), a binning (leave 2x2 to start with) and expose by pressing exposure. The status of the camera is displayed in a bar in the upper part of the display window(Fig. 5)

Figure: Part of the main camera display with the main camera control buttons and the status bar, giving the integrating time left ( left) and the read-out time left ( right).
\includegraphics [width=8cm]{exposing.ps}
\includegraphics [width=8cm]{reading_out.ps}


next up previous contents
Next: Adjusting the image display Up: A first image Previous: Bias image   Contents
Dieter Engels
2003-01-15