ASTAP Plate Solving Issue

Stacking program, astrometric (plate) solver, fits file viewer

Brought to you by: han59

ASTAP Plate Solving Issue

Forum: General discussions ASTAP

Creator: VAHID TALAIE

Created: 2022-06-01

Updated: 2022-06-02

VAHID TALAIE - 2022-06-01

I am trying to plate solve the attached image with ASTAP. ASTAP is reporting that it is failing to find any stars in the image. Can somebody tell me why ASTAP is not detecting any stars?

2022-05-31_21-18-27__20.70_10.00s_0000.fits

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Alexandre Laporta Zanardo - 2022-06-01

I think your SNR is too low. Make some dark frames (The sky count is about 25000 ADU's), calibrate the image and try again with the calibrated image.

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

han.k - 2022-06-01

There are too many hot pixels. Just try F4 to see that. You have to filter them out. If you move the mouse pointer to a real star, you see in the status bar the HFD is 5 or 6. Set "Ignore stars less then" at 3, 3.5 or 4 then it solves. See attachment.

Han

Untitled.png

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

han.k - 2022-06-01

Set also downsample at 0. Ignore stars at 3.5

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

han.k - 2022-06-01

Fixed in version 2022-06-01
http://www.hnsky.org/astap_setup.exe

Regards, Han

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

VAHID TALAIE - 2022-06-02

Thank you very much for all your help.

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Log in to post a comment.