Introduction to AudeLA
Association des Utilisateurs de Detecteurs Electroniques Logiciel d'Astronomie.
AudeLA is a multiplatform software for observational astronomy.
Downloads
svn co https://svn.code.sf.net/p/audela/code/trunk/audela audela
Installation
To compile AudeLA, read the documention in the forlder audela/doc/compil.
Complete informations:
User guide to manage FITS images
All the examples must start AudeLA (and Aud'ACE graphical interface).
Load an image
If you want to load the file /home/myuser/data/m57.fit
set audace(rep_images) "/home/myuser/data"
buf1 extension ".fit"
buf1 load "m57"
set audace(rep_images) "/home/myuser/data"
loadima "m57"
Save an image
After the load of m57.fit, if you want to save messier57.fit:
Dark correction
In the directory /home/myuser/data we have the files:
We load m57, sutract dark.fit and save the result as messier57.fit:
set audace(rep_images) "/home/myuser/data"
loadima "m57"
buf1 sub "dark" 0
buf1 save "messier57"
Stacking individual dark files to synthetize a superdark
In the directory /home/myuser/data we have the files:
- dark-1.fit
- dark-2.fit
- dark-3.fit
- dark-4.fit
We stack the images with a median algorithm.
The result is dark.fit:
set audace(rep_images) "/home/myuser/data"
smedian dark- dark 4
Dark and flat correction
In the directory /home/myuser/data we have the files:
- m57.fit
- dark.fit
- flat.fit
We load m57, sutract dark.fit, divide by flat.fit (normalized to 10000 adu) and save the result as messier57.fit:
set audace(rep_images) "/home/myuser/data"
loadima "m57"
sub "dark" 0
div "flat" 10000
saveima "messier57"
Astrometric calibration
In the directory /home/myuser/data we have the files:
We load messier57.fit and call the internal algorithm.
We indicate a center of searching R.A.=18h53m45.85s, Dec=33d1m19.1s, a radius of search of 5 degrees, pixels of 18x18 micometers, focal length=1.013 meter.
After the calibration we save the file messier57.fit:
set audace(rep_images) "/home/myuser/data"
loadima "messier57"
calibwcs 18h53m45.85s 33d1m19.1s 18.0 18.0 1.013 USNOA2 /catalogs/
saveima "messier57"