Crescent Nebula - Origin
From bortle 7 (with moon out) location using nebula filter.
59 minute 45 seconds integration time.
Post-processed first using Siril just for the Photometric color Calibration and a background extraction.
Linear image then saved as a TIFF again.
the color-corrected TIFF then further edited with Affinity Photo with the StarXterminator and Topaz Anti Noise plugins.
Craigar likes this
Image META information
COMPUTED.Copyright
Siril v1.2.3
1#090
%G
IPTC.ObjectName
colorCorrect
IPTC.CopyrightNotice
Siril v1.2.3
IPTC.Caption
SIMPLE = T / file does conform to FITS standard
BITPIX = 20 / number of bits per data pixel
NAXIS = 3 / number of data axes
NAXIS1 = 3056 / length of data axis 1
NAXIS2 = 2048 / length of data axis 2
NAXIS3 = 3 / length of data axis 3
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H
BZERO = 0 / offset data range to that of unsigned short
BSCALE = 1 / default scaling factor
DATE = '2024-07-21T19:29:08' / UTC date that FITS file was created
INSTRUME= ' ' / instrument name
OBSERVER= ' ' / observer name
TELESCOP= ' ' / telescope used to acquire this image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
XPIXSZ = 2.9 / X pixel size microns
YPIXSZ = 2.9 / Y pixel size microns
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
FOCALLEN= 404.606 / Camera focal length
CCD-TEMP= 0 / CCD temp in C
SET-TEMP= 0 / Temperature setting in C
EXPTIME = 0 / Exposure time [s]
CTYPE1 = 'RA---TAN' / Coordinate type for the first axis
CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis
CUNIT1 = 'deg ' / Unit of coordinates
CUNIT2 = 'deg ' / Unit of coordinates
EQUINOX = 2000 / Equatorial equinox
OBJCTRA = '20 12 25.906' / Image center Right Ascension (hms)
OBJCTDEC= '+38 22 22.987' / Image center Declination (dms)
RA = 303.108 / Image center Right Ascension (deg)
DEC = 38.3731 / Image center Declination (deg)
CRPI
File Name
gallery_294689_26843_208446.jpg
Unix Timestamp
1721593033
Original File Size
966527
File Type
2
Mime Type
image/jpeg
Sections Found
ANY_TAG, IFD0, EXIF
HTML Sizes
width="3056" height="2048"
Image Height
2048
Image Width
3056
Color
TRUE
Byte Order Motorola
TRUE
Image Description
SIMPLE = T / file does conform to FITS standard
BITPIX = 20 / number of bits per data pixel
NAXIS = 3 / number of data axes
NAXIS1 = 3056 / length of data axis 1
NAXIS2 = 2048 / length of data axis 2
NAXIS3 = 3 / length of data axis 3
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H
BZERO = 0 / offset data range to that of unsigned short
BSCALE = 1 / default scaling factor
DATE = '2024-07-21T19:29:08' / UTC date that FITS file was created
INSTRUME= ' ' / instrument name
OBSERVER= ' ' / observer name
TELESCOP= ' ' / telescope used to acquire this image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
XPIXSZ = 2.9 / X pixel size microns
YPIXSZ = 2.9 / Y pixel size microns
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
FOCALLEN= 404.606 / Camera focal length
CCD-TEMP= 0 / CCD temp in C
SET-TEMP= 0 / Temperature setting in C
EXPTIME = 0 / Exposure time [s]
CTYPE1 = 'RA---TAN' / Coordinate type for the first axis
CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis
CUNIT1 = 'deg ' / Unit of coordinates
CUNIT2 = 'deg ' / Unit of coordinates
EQUINOX = 2000 / Equatorial equinox
OBJCTRA = '20 12 25.906' / Image center Right Ascension (hms)
OBJCTDEC= '+38 22 22.987' / Image center Declination (dms)
RA = 303.108 / Image center Right Ascension (deg)
DEC = 38.3731 / Image center Declination (deg)
CRPIX1 = 1528 / Axis1 reference pixel
CRPIX2 = 1024 / Axis2 reference pixel
CRVAL1 = 303.108 / Axis1 reference value (deg)
CRVAL2 = 38.3731 / Axis2 reference value (deg)
CDELT1 = -0.000410714 / X pixel size (deg)
CDELT2 = 0.000410616 / Y pixel size (deg)
PC1_1 = 0.0611986 / Linear transformation matrix (1, 1)
PC1_2 = 0.998126 / Linear transformation matrix (1, 2)
PC2_1 = -0.998131 / Linear transformation matrix (2, 1)
PC2_2 = 0.0611131 / Linear transformation matrix (2, 2)
PLTSOLVD= T / Siril internal solve
HISTORY TOP-DOWN mirror
HISTORY Photometric CC
HISTORY Background extraction (Correction: Subtraction)
END
Orientation
The 0th row is at the visual top of the image, and the 0th column is the visual left-hand side
1
