Pointing the telescope to your star

Last update: August 11 1996

1. First go to the procedure described in "Calibrate the pointing of the
   telescope"
2. Use again the point software to find the (RA,DEC) of the star
   after correction for earth precession and refraction of the earths
   atmosphere.
3. The easiest way it to type the RA and DEC of the star.
   * p  16 37 09.398 -10 34 02.79 2000
     with Right Ascension =  16 hours   37  arcmin 09.398  arcsec
          Declination     = -10 degrees 34  arcmin 02.79   arcsec
          Equinox         = 2000
4. Point will give a lot of information but you are only
   concerned with the FLEXED coordinates (and the airmass).
5. Go to the dome and point the telescope at the flexed
   coordinates
6. Go to the laser room and center the star on the slit.
7. You can also put the coordinates of your star in a file
   called: sources.dat 
   which look as follows:
   zeta_oph  16 37 09.398 -10 34 02.79 2000
   ep_lyr    19 18 19.4    27 51 03    2000
   89_her    17 55 25.082  26 02 59.69 2000
   p_cygni   20 15 56.50   37 52 35.6  2000
   zeta_aql  19 05 24.536  13 51 53.13 2000
   hd213985  22 35 27.35  -17 15 26.5  2000
   bd+392926 22 46 11.13   40 06 26.7  2000
8. you can now use:
   p t sources.dat ep_lyr to get the flexed coordinates for ep_lyr