*Absolute time accuracy is essential**
to connect all the observations together
after the fact. Check
the time of your computer with many sources (phone talked
hour, different internet sites, ideally with a GPS). Its advised
to check the registered time right after and right before the
integrations, so if there is a drift, we can correct it by having
Beware of the dead time
between the images: if you manage an exposure time of 1
sec (for example), but have your camera takes 2 sec to read the
image, then there is a 67% chance that you miss the
dis(re)-appearance of the star. So it's better to have, for
example, a 4 sec integration, so you have 67% chance to get the
occultation in one of your exposures.
charts from DSS:
x 05 arcmin FOV (North
is up, East is left)
x 20 arcmin FOV
is up, East is
Prediction from Lucky Star web page (i).
With images taken from Obs Sierra Nevada during six nights on the
beginning of March, J.L. Ortiz obtained the following prediction:
see the observation tips at the top!