Simplest stacking method w/ no bells and whistles

Hi Mabula, still waiting for a reply. Any way you can advise what settings to use to not add any bells and whistles to the image?

Looking for a .fits stacked image that is as linear as possible to attempt to use in StarTools which needs data as raw as possible.

Thanks

Adam

Hi Adam @singding,

Apologies for the late reply.

I still use StarTools and that program requires 1:1 photon counts by default. Basically vit needs the least about of stuff done to the image. What can I do when stacking to ensure it is simply calibrated, registered and stacked, with no bells and whistles?

All integrations coming out APP are linear if you feed linear (raw) data into it. Any bells and whistles on integration would be Local Normalization Correction and Multi-Band Blending I think, but they merely remove seams and bad data normalization. The data does stay linear however.

Looking for a .fits stacked image that is as linear as possible to attempt to use in StarTools which needs data as raw as possible.

 I am not sure what you mean by this. Linear is linear. It becomes unlinear if you apply a non-linear stretch to the data, which APP doesn't do on the integration data, so the integration result is as linear as it can be, really 😉

What does startools complain about if any? Maybe that will shed some light on your concern? (I don't use startools myself currently, but have done so in the past, so I know a few things about it).

Kind regards,

Mabula