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M33 - SeeStar

Uploaded by jprideaux , Nov 20 2023 08:40 PM

Owner: jprideaux (View all images and albums)
Uploaded: Nov 20 2023 08:40 PM
Taken: 2023:11:20 20:21:56
Views: 226
Album: SeeStar

I tried the following experiment:

Took the single stacked FIT file from 3 different nights of imaging M33 with my SeeStar and did a color correction on each with ASTAP and saved each one as a TIFF.
Then did a little stack of those 3 TIFFs in Affinity Photo.
After playing around with various edits, I ended up with the following:

I think each one was around 2 hours so a combined total of 6 hours or so. They were collected from around bortle 4.

Image META information

1#090	%G
IPTC.ObjectName	combine3_mean
IPTC.Caption	SIMPLE = T / file does conform to FITS standard BITPIX = 16 / number of bits per data pixel NAXIS = 3 / number of data axes NAXIS1 = 1080 / length of data axis 1 NAXIS2 = 1920 / 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 = 32768 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor CREATOR = 'ZWO SeestarS50' / Capture software XORGSUBF= 0 / Subframe X position in binned pixels YORGSUBF= 0 / Subframe Y position in binned pixels FOCALLEN= 250 / Focal length of telescope in mm XBINNING= 1 / Camera X Bin YBINNING= 1 / Camera Y Bin CCDXBIN = 1 / Camera X Bin CCDYBIN = 1 / Camera Y Bin XPIXSZ = 2.90000009536743 / pixel size in microns (with binning) YPIXSZ = 2.90000009536743 / pixel size in microns (with binning) IMAGETYP= 'Light ' / Type of image STACKCNT= 416 / Stack frames EXPOSURE= 10. / Exposure time in seconds EXPTIME = 10. /
File Name	gallery_294689_24473_275366.jpg
Unix Timestamp	1700530825
Original File Size	291589
File Type	2
Mime Type	image/jpeg
Sections Found	ANY_TAG, IFD0, EXIF
HTML Sizes	width="1080" height="1362"
Image Height	1362
Image Width	1080
Color	TRUE
Byte Order Motorola	TRUE
Image Description	SIMPLE = T / file does conform to FITS standard BITPIX = 16 / number of bits per data pixel NAXIS = 3 / number of data axes NAXIS1 = 1080 / length of data axis 1 NAXIS2 = 1920 / 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 = 32768 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor CREATOR = 'ZWO SeestarS50' / Capture software XORGSUBF= 0 / Subframe X position in binned pixels YORGSUBF= 0 / Subframe Y position in binned pixels FOCALLEN= 250 / Focal length of telescope in mm XBINNING= 1 / Camera X Bin YBINNING= 1 / Camera Y Bin CCDXBIN = 1 / Camera X Bin CCDYBIN = 1 / Camera Y Bin XPIXSZ = 2.90000009536743 / pixel size in microns (with binning) YPIXSZ = 2.90000009536743 / pixel size in microns (with binning) IMAGETYP= 'Light ' / Type of image STACKCNT= 416 / Stack frames EXPOSURE= 10. / Exposure time in seconds EXPTIME = 10. / Exposure time in seconds CCD-TEMP= 8.4375 / sensor temperature in C RA = 23.837505 / Object Right Ascension in degrees DEC = 30.787778 / Object Declination in degrees DATE-OBS= '2023-11-03T03:16:50.268533' / Image created time FILTER = 'LP ' / Filter used when taking image INSTRUME= 'ZWO ASI462MC' / Camera model BAYERPAT= 'GRBG ' / Bayer pattern GAIN = 80 / Gain Value FOCUSPOS= 1614 / Focuser position in steps CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions CRVAL1 = 23.3886004086 / RA of reference point CRVAL2 = 30.6847426157 / DEC of reference point CRPIX1 = 568.477935791 / X reference pixel CRPIX2 = 813.879806519 / Y reference pixel CD1_1 = -0.000242820085669 / Transformation matrix CD1_2 = 0.000613421455485 / no comment CD2_1 = -0.000613344298626 / no comment CD2_2 = -0.000242758216578 / no comment A_ORDER = 2 / Polynomial order, axis 1 B_ORDER = 2 / Polynomial order, axis 2 AP_ORDER= 2 / Inv polynomial order, axis 1 BP_ORDER= 2 / Inv polynomial order, axis 2 A_0_0 = 0 / no comment A_0_1 = 0 / no comment A_0_2 = 1.25096944889E-07 / no comment A_1_0 = 0 / no comment A_1_1 = -5.1890272777E-07 / no comment A_2_0 = 4.4590239381E-07 / no comment B_0_0 = 0 / no comment B_0_1 = 0 / no comment B_0_2 = -4.14238516996E-08 / no comment B_1_0 = 0 / no comment B_1_1 = 1.01613339653E-06 / no comment B_2_0 = -1.93582910491E-06 / no comment AP_0_0 = 4.49091284053E-05 / no comment AP_0_1 = -2.10225294822E-07 / no comment AP_0_2 = -1.25148287801E-07 / no comment AP_1_0 = 4.46184560628E-07 / no comment AP_1_1 = 5.19191610493E-07 / no comment AP_2_0 = -4.46270861382E-07 / no comment BP_0_0 = -9.49894789999E-05 / no comment BP_0_1 = 4.36484703522E-07 / no comment BP_0_2 = 4.15127643819E-08 / no comment BP_1_0 = -1.00043119668E-06 / no comment BP_1_1 = -1.01667385088E-06 / no comment BP_2_0 = 1.93667768562E-06 / no comment IMAGEW = 1080 / Image width, in pixels. IMAGEH = 1920 / Image height, in pixels. END
Orientation	The 0th row is at the visual top of the image, and the 0th column is the visual left-hand side
X-Resolution	72/1
Y-Resolution	72/1
Resolution Unit	2
Software	ASTAP
Date Taken	2023:11:20 20:21:56
Color Space	sRGB
Image Length	1362

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M33 - SeeStar

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