LRS Tips
We will have more success at keeping your target positioned and focused
if you have a bright guide star near your science target. See our performance page
for guiding limits. Do not assume that because our limit is 18th magnitude
that a 17th magnitude is fine! If your target lacks a bright (<16th magnitude)
star within 1.5 arcmin, then you should check to see if
we could move your science target along the slit to bring a bright star
in reach.
Last updated: Sun, 08 Jan 2012 03:46:09 -0600 caldwell