2. Find Stars
Command: wisp-find-stars
Important parameters
filter-sources(if needed)srcextract-max-sources(if needed)
Description
Before AutoWISP can measure the brightnesses of the star in images, it needs to know the coordinates of the stars in the image. Finding a reliable sets of coordinates consists of two steps: running a source extraction algorithm to find an initial (not extremely precise) list of stars and their coordinates, and then matching these stars to an external high-precision and high-accuracy in order to find a function that can convert the coordinates of the stars in the catalogue to coordinates of the stars in the image.
The first of these steps is performed using the wisp-find-stars command.
Behind the scenes, this command runs the source extraction algorithm
from the FITSH package.
The browser interface provides a sandbox where source extraction can be tested
interactively on any calibrated image with different values of
brightness-threshold, filter-sources, and
srcextract-max-sources.