It appears like I have diffraction spikes but I think this is a product of my imaging system. I noticed some time ago that Martin Pughs wide field images had a similar look so I guess this might have something to do with the Takahashi scopes. Or there is something with the sensor I am using. In any event it is not deliberate on my behalf.
Thanks for the reply Paul,
It would be interesting to find out the reason though.
Magnificent image.
Regarding the diffraction spikes, I've noticed some from my QSI683 as well, even though there's nothing in the imaging train that should induce them. My understanding is that it's the edges of the microlenses on the sensor. Still, they're not exactly intrusive.
cheers,
Andrew.
Magnificent image.
Regarding the diffraction spikes, I've noticed some from my QSI683 as well, even though there's nothing in the imaging train that should induce them. My understanding is that it's the edges of the microlenses on the sensor. Still, they're not exactly intrusive.
cheers,
Andrew.
Ahh yes that is most likely it. I seem to recall something in the discussion groups about micro lenses cause some artefact but I did not read enough to make this connection.
Quote:
Originally Posted by strongmanmike
Looks good with some colour added Paul but I think I prefer the B&W version.
Amazing dark feature that Wolf/Eagle
Mike
Yes the mono version does have some nice appeal. If you click the link you can see the full res version of that with 12.25 hours.
I have attached a small image of it here.
Very very nice Paul, one of your best I think! And thanks for finding such a gem of a target too. Now I'm inclined to have a go as well, but it already seems to be the flavour of the month...
Very interesting about the diffraction spikes too, I noticed exactly the same in my 120 hour CenA image. I wondered what on earth could have caused a second set of faint spikes perfectly ortogonal with the frame (my normal spikes from the spider are at an angle). Must be the microlenses as you say, and it apparently only shows with sufficient integration time.
I'm a fan too Paul. Colours of the stars, nebula and background all nicely balanced. A great little frame.
Phil
Thanks Phil, seems I may have started a bit of a trend.
Quote:
Originally Posted by SkyViking
Very very nice Paul, one of your best I think! And thanks for finding such a gem of a target too. Now I'm inclined to have a go as well, but it already seems to be the flavour of the month...
Very interesting about the diffraction spikes too, I noticed exactly the same in my 120 hour CenA image. I wondered what on earth could have caused a second set of faint spikes perfectly ortogonal with the frame (my normal spikes from the spider are at an angle). Must be the microlenses as you say, and it apparently only shows with sufficient integration time.
You might as well have a go Rolf. Seems there are a few interested in this target.
Yes a bit of a mystery on the spikes. Occams razor works with the microlensing at present.
It stands out so clearly. Well done 
