Seestar S50 help

[jjones7777]

Greetings!
The Seestar S50 has two different ways of stacking images. The first way appears to be a live autostack which - at the end of the run - is available as a fit file. The 2nd way is to request the Seestar software to 'maually' stack the images (this is how one stacks subs taken on multiple nights), if the user has requested the subs to be saved. The stack is then saved as a fit file. Interestingly, the two different stacking procedures seem to produce quite different fit files; I'm not sure why.

My question is this: Which dataset are these stacks? Linear or linear from an OSC? The sensor is an IMX462.

I have tried both types of datasets and they both seem to work, but I am curious which one would be best.

Thank you!

[decay]

Hi, the documentation (https://www.startools.org/modules/intro ... uick-start) says "Upon opening an image, the Tracking dialog will open, asking you about the characteristics of the data. Choose the option that best matches the data being imported. If your dataset comes straight from a stacker, the first option is always safe. The second option may yield even better results if certain conditions are met. Depending on what you choose here, StarTools may work exclusively on the luminance (mono) part of your image, bringing in color later; StarTools is able to seamlessly process color and detail separately (yet simultaneously)."

You may find some more hints in Guy's user notes:
viewtopic.php?f=12&t=1174

So the second option is for sensor types having a bayer matrix, and so I would assume, this is the right option in your case.I think the background is, that there a two pixels for green, while only one for red and blue colour, respectively. This means that SNR for the green channel is stronger. StarTools does some kind of (L)LRGB processing behind the scenes (please see documentation of the Compose module as well) and the stronger green SNR may be used to get a better (in terms of SNR) luminance signal.

Does this help?

Best regards, Dietmar.

[jjones7777]

Yes - that’s what I thought but I’ve not had enough experience to be able to detect which is better.