So for some reason when I try and plate solve my images on siril it wont execute the photo metric calibration and color calibrate it, please hel me
Photometric calibration on siril
Is there an error message on screen or in the console? Copy paste it here so we can help you with this.
Well Written
Have you specified the correct focal length and the right pixel size?
Well Written
Your deep sky target must be correct, search for it, then you must enter the correct telescope focal length and sensor pixel size, I always tick "Force Plate Soving", click OK and it should work as in this case:
I've had the problem sometimes, where, even with lots of stars and given specific RA/Dec, Siril won't properly plate solve. It tends to be from Seestar S50 images for some reason. I just move on without the color calibration. Unfortunately, other than some general failure message, I don't recall anything specific.
From time to time my plate solving doesn't work with a certain parameter set.
To solve the issue I try to down sample or
I try to auto crop or
I try to change stretching or
I perform offline plate solving (you need to download the relevant files first)
Sometime it helps and sometimes not.
To solve the issue I try to down sample or
I try to auto crop or
I try to change stretching or
I perform offline plate solving (you need to download the relevant files first)
Sometime it helps and sometimes not.
Are you using a reducer and/or perhaps a multi session with slightly different focal lengths? Is 432mm correct? Did you crop or try to plate solve after star restoring?
Try these couple things:
- Desaturate the stars under star processing and try rerunning the PCC
- If that doesn't work, try messing with the focal length. I run with a 200mm lens, but I've had to type in 400mm before to get it to plate solve
Concise
Oskari Nikkinen:
Is there an error message on screen or in the console? Copy paste it here so we can help you with this.
*** when I try and plate solve it says” plate solving failed. The image could not be aligned with the reference stars. ***
Have you specified the correct focal length and the right pixel size?
*** yes, I think so ***
Derek Duckitt:
Your deep sky target must be correct, search for it, then you must enter the correct telescope focal length and sensor pixel size, I always tick "Force Plate Soving", click OK and it should work as in this case:
***unfortunately it still doesn’t ***
Ethan Sweet:
Try these couple things:
- Desaturate the stars under star processing and try rerunning the PCC
- If that doesn't work, try messing with the focal length. I run with a 200mm lens, but I've had to type in 400mm before to get it to plate solve
*** I tried putting in a number of focal length but that still doesn’t work ***
Antonio Parisi:
Are you using a reducer and/or perhaps a multi session with slightly different focal lengths? Is 432mm correct? Did you crop or try to plate solve after star restoring?
No reducer, same focal length, not 432, what’s star restoring?
sometimes siril finds a solution and when i slightly crop the image siril is not anymore able to find the solution.
I live with it.
I think there is maybe a bug in Siril.
I use instead https://astrometry.net/
I live with it.
I think there is maybe a bug in Siril.
I use instead https://astrometry.net/
Nikolaos Bafitis:Oskari Nikkinen:
Is there an error message on screen or in the console? Copy paste it here so we can help you with this.
*** when I try and plate solve it says” plate solving failed. The image could not be aligned with the reference stars. ***
*Try drawing a selection box around the target coordinates in the image. This makes plate solving only look at stars in that box and can increase accuracy with wider field shots. Do try different plate solving catalogues as well from the menu.
Also just to be sure, you are running this on a linear image? The workflow needs to be Crop->Background extraction-> PCC->Everything else after that.
Helpful Concise Supportive
Just checked your profile, it says you are using an iphone. How are you taking images with it through a telescope (if a telescope was even used)? If you are using eyepiece projection the focal length and pixel size are not "native" because the eyepiece used will effect the image scale. In that case you need to experiment on this quite a bit.
And also, pixel size with smart phones is usually 2x the stated value because most smart phone cameras bin the image x2 even with raw images.
You should upload your image to astrometry.net and see what the image scale comes out to and use those values with Siril PCC. Do keep in mind that PCC may not be able to find a solution anyway, as there is likely some distortion in the wide field lens (or eyepiece if used).
And also, pixel size with smart phones is usually 2x the stated value because most smart phone cameras bin the image x2 even with raw images.
You should upload your image to astrometry.net and see what the image scale comes out to and use those values with Siril PCC. Do keep in mind that PCC may not be able to find a solution anyway, as there is likely some distortion in the wide field lens (or eyepiece if used).
Helpful Insightful
Nikolaos Bafitis:Antonio Parisi:
Are you using a reducer and/or perhaps a multi session with slightly different focal lengths? Is 432mm correct? Did you crop or try to plate solve after star restoring?
No reducer, same focal length, not 432, what’s star restoring?
*** When you reapply the starmask ..maybe with lower stretch it's not able to plate solve***
I used to have this issue and what solved it for me was to not crop the image prior to plate solving.
Also, is this a problem with other images that you have processed or just this one?
Also, is this a problem with other images that you have processed or just this one?
Supportive
Daniel Ryan:
I used to have this issue and what solved it for me was to not crop the image prior to plate solving.
Also, is this a problem with other images that you have processed or just this one?
Others too