Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Fay on Mar 19, 2014, 17:04:17

Title: Jupiter three ways
Post by: Fay on Mar 19, 2014, 17:04:17
As usual, i was impatient & only got one moon.

the two mono were taken with SW150, DMK, 60fps, x2 Barlow, 480frames, IC Capture, stacked with Autostakkert.

The colour one, which looks a bit smoother, SPC, 10fps, SW150, x2 barlow, IR filter, 480 frames, Sharpcap, stacked with Autostakkert


(http://farm4.staticflickr.com/3834/13269745354_cb872af229_o.jpg)


(http://farm8.staticflickr.com/7313/13269754364_d4e528e44a_o.jpg)

(http://farm8.staticflickr.com/7361/13269578313_4b4d52d833_o.jpg)
Title: Re: Jupiter three ways
Post by: Mac on Mar 19, 2014, 17:09:02
Looks like Jupiter is on the cards for next weeks talk  :lol:

I think there is a problem with the stacking of your colour image,
It appears that you have a ghost image, if you look at the top of the image,
roughly 12 o clock position and 1 o clock, it looks like you have another image
inside as if its stacked a few images off set,
You can see the distinct edge of jupiter and then a faint band extending just above the main edge,

Good capture though.

Mac.
Title: Re: Jupiter three ways
Post by: Fay on Mar 19, 2014, 17:19:30
perhaps i did the stacking box's too big. i think they are not supposed to overlap the disc
Title: Re: Jupiter three ways
Post by: MarkS on Mar 19, 2014, 17:33:03
Quote from: Mac
I think there is a problem with the stacking of your colour image,
It appears that you have a ghost image, if you look at the top of the image,
roughly 12 o clock position and 1 o clock, it looks like you have another image
inside as if its stacked a few images off set,
You can see the distinct edge of jupiter and then a faint band extending just above the main edge,

It could be a misregistration.  On the other hand it might just be an artifact of the wavelet deconvolution.  I know that I, also, get this frequently on my planetary images.
Title: Re: Jupiter three ways
Post by: Carole on Mar 19, 2014, 18:02:28
Good detail Fay.

Registax I find is not brilliant at getting images registered, I sometimes stack data from 2 different AVIs, which have not moved hardly at all I put a square align box around both and end up with 2 Jupiters in different parts of the stacked image, not even overlapping sometimes.  I have had this a number of times even with the sun I get overlapping Suns.  Even using Registax 6 and align points.

Carole
Title: Re: Jupiter three ways
Post by: MarkS on Mar 19, 2014, 20:03:11
In any case, you've captured a good amount of detail!!

Well done.
Title: Re: Jupiter three ways
Post by: Fay on Mar 19, 2014, 20:38:14
Thanks. still would like a larger aperture for planets & galaxies, i would probably enjoy doing them more then
Title: Re: Jupiter three ways
Post by: Carole on Mar 20, 2014, 08:08:51
Fay, have you thought of combining the mono image with the colour one i.e. LRGB

Carole
Title: Re: Jupiter three ways
Post by: JohnP on Mar 20, 2014, 08:12:16
Very good Fay - the first B&W one does it for me - like mac pointed out there are ghosting issues with the colour one...
Title: Re: Jupiter three ways
Post by: Fay on Mar 20, 2014, 08:30:28
Carole dont think they are good enough to do that ha ha ha