M42 jest łatwym celem, bo zasadniczo trudno o warunki, żeby nie wyszedł. Natomiast Koński Łeb pod Wrocławiem to mnie zaskoczył.
Fotometria Siril
14:15:19: Searching hd 37040 in SIMBAD...
14:15:24: There is no valid WCS information in the header. Let's make a plate solving.
14:15:26: Catalog NOMAD size: 574 objects
14:15:26: Findstar: processing for channel 1...
14:15:27: Saved focal length 225.04 and pixel size 6.42 as default values
14:15:27: Image center: alpha: 05h34m36s, delta: -03°42'01"
14:15:28: Normalizing on green channel.
14:15:28: Photometry radii set to 12.4 for inner and 22.4 for outer
14:15:28: Applying aperture photometry to 554 stars.
14:15:28: 439 stars excluded from the calculation
14:15:28: Distribution of errors: 427 no error, 7 not in area, 124 inner radius too small, 308 pixel out of range
14:15:28: Found a solution for color calibration using 115 stars. Factors:
14:15:28: K0: 1.202 (deviation: 0.060)
14:15:28: K1: 1.000 (deviation: 0.016)
14:15:28: K2: 0.832 (deviation: 0.030)
14:15:28: After renormalization, the following coefficients are applied
14:15:28: White balance factors:
14:15:28: K0: 1.000
14:15:28: K1: 0.832
14:15:28: K2: 0.692
14:15:28: Background reference:
14:15:28: B0: +0.00000e+00
14:15:28: B1: +2.98916e-03
14:15:28: B2: +5.49021e-03
14:15:28: Photometric Color Calibration succeeded.
14:15:35: Existing plate solve (WCS information) will be resused for image
14:15:35: Findstar: processing for channel 0...
14:15:35: Findstar: processing for channel 2...
14:15:35: Findstar: processing for channel 1...
14:15:37: Image has a field of view of 12.31 degrees, using a limit magnitude of 9.25
14:15:44: The NOMAD catalog has been successfully downloaded.
14:15:44: Normalizing on green channel.
14:15:44: Photometry radii set to 18.1 for inner and 28.1 for outer
14:15:44: Applying aperture photometry to 540 stars.
14:15:45: 508 stars excluded from the calculation
14:15:45: Distribution of errors: 103 no error, 24 not in area, 67 inner radius too small, 417 pixel out of range
14:15:45: Found a solution for color calibration using 32 stars. Factors:
14:15:45: K0: 1.015 (deviation: 0.105)
14:15:45: K1: 1.000 (deviation: 0.056)
14:15:45: K2: 0.954 (deviation: 0.268)
14:15:45: The photometric color calibration seems to have found an imprecise solution, consider correcting the image gradient first
14:15:45: After renormalization, the following coefficients are applied
14:15:45: White balance factors:
14:15:45: K0: 1.000
14:15:45: K1: 0.985
14:15:45: K2: 0.940
14:15:45: Background reference:
14:15:45: B0: +0.00000e+00
14:15:45: B1: +2.89996e-04
14:15:45: B2: +1.08821e-03
14:15:45: Photometric Color Calibration succeeded.