after a thunderstorm the air was rather humid and transparency not good
2007/07/20
21:27:05
-
22:02:42
32 x 60 sec
C 8 @
f / 5.6
Starlight SX
processing with
MIRA A/P:
dark
flat
processing with
Astrometrica:
track and stack on comet
save as FITS
processing with Photoshop:
open FITS
pixel rectification
log scaling
cropping
save as JPEG
Animation of 2 comets crossing each
other:
C/2005 L3 (east-west motion) and
P/2007 N2 (south-north motion)
just after nearest approach clouds were interfering
2007/07/20
21:27:05
-
22:54:41
62 x 60 sec
C 8 @
f / 5.6
Starlight SX
processing with
MIRA A/P:
dark
flat
processing with
Astrometrica:
track and stack (sets of 4x60 sec) on P/2007 N2
save as FITS
MIRA A/P:
crop
processing with Photoshop:
log scaling
save as GIF
animation done with GIF Construction Set Professinal 2.0a