Here is a strip montage of Io and it’s shadow on Jupiter’s disc from 11th April. The seeing was quite variable and began to deteriorate as Io approached Jupiter.
The “new” red Spot Junior can also be seen. Each Registax bmp was re-sampled using Mitchell 150% to increase the image scale.
Cheers
Dennis
Equipment:
Celestron C9.25, Televue x2.5 Powermate
Philips ToUcam 840K Details:
Brisbane, 11th April 2006, 00:48 to 01:26 AEST (GMT+10) Capture:
K3CCDTools, 10fps, 1/25 sec.
Brightness 50%
Gamma 00
Gain 20% Processing:
Registax, Wavelets 1:30, 2:20.
Mitchell 150%.
Corel PhotoPaint12 for montage.
yup that first one has great detail following the grs.
what is an ingress???
Hi Dave
Ingress is to enter and egress is to exit. In astronomy, I think the terms are used for e.g. a Mercury or Venus ingress, or egress, on the solar disc during a transit.
I am working from schooldays memory, so I hope I'm not leading anyone astray?
Dennis, these are amzing. The belt detail is incredible. It looks like you were running that image scale you don't seem to have lost anything from resampling up.
This is the first avi where I have been able to up-sample without the end result looking, well, up-sampled! I was really, really lucky on this occasion, as the seeing was so variable and I just happened to hit the sweet spot, care of the auto sequence capture function of K3CCDTools.
I'm also beginning to consider the possibility that the softer images may have a changing focus component as well as a poor seeing component, so I'll keep an eye on how the focus may change with temperature, even though my C9.25 has a carbon fibre tube.
That's a good point Dennis - I usually check/adjust my focus again after each hour of imaging. The higher up in the sky the object is, it can also have a different focal point due to the atmospheric turbulence (or lack of it).
