First attempt at NGC7000 (North America Nebula)
Used a stock Canon Rebel T7 with a 24-70 mm zoom lens, ISO 3200, untracked, stacked around 150 2" exposures (around 5-6 minutes total integration time), did around a dozen of each type of calibration frames.
Used Siril to stack, Starnet++ for creating starless image (for mask), and Photoshop to stretch and enhance the redness of the nebula. Turned out alright, but the image had to be kept fairly dark and had to have several filters applied to reduce noise, which resulted in the image looking a bit unrealistic (as well as losing a lot of the dimmer stars).
Image META information
COMPUTED.Copyright
Siril v1.2.0
IFD0.ImageWidth
6020
IFD0.ImageLength
4015
IFD0.Compression
1
IFD0.PhotometricInterpretation
2
IFD0.SamplesPerPixel
3
IFD0.PlanarConfiguration
1
1#090
%G
IPTC.Caption
SIMPLE = T / file does conform to FITS standard
BITPIX = -32 / number of bits per data pixel
NAXIS = 3 / number of data axes
NAXIS1 = 6020 / length of data axis 1
NAXIS2 = 4015 / 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 = '2023-09-18T22:00:04' / UTC date that FITS file was created
DATE-OBS= '2023-09-17T05:38:32' / YYYY-MM-DDThh:mm:ss observation start, UT
INSTRUME= 'Canon EOS 1500D' / instrument name
OBSERVER= ' ' / observer name
TELESCOP= ' ' / telescope used to acquire this image
ROWORDER= 'BOTTOM-UP' / Order of the rows in image array
XPIXSZ = 3.7 / X pixel size microns
YPIXSZ = 3.7 / Y pixel size microns
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
FOCALLEN= 67.574 / Camera focal length
CCD-TEMP= 0 / CCD temp in C
EXPTIME = 2 / Exposure time [s]
STACKCNT= 118 / Stack frames
LIVETIME= 236 / Exposure time after deadtime correction
EXPSTART= 2.4602e+06 / Exposure start time (standard Julian date)
EXPEND = 2.4602e+06 / Exposure end time (standard Julian date)
APERTURE= 2.8 / Aperture of the instrument
ISOSPEED= 3200 / ISO camera setting
CTYPE1 = 'RA---TAN' / Coordinate type for the first axis
CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis
CUNIT1 = 'deg '
IPTC.CopyrightNotice
Siril v1.2.0
File Name
gallery_473814_321_1219900.jpg
Unix Timestamp
1695104341
Original File Size
7462046
File Type
2
Mime Type
image/jpeg
Sections Found
ANY_TAG, IFD0, THUMBNAIL, EXIF
HTML Sizes
width="4073" height="3259"
Image Height
3259
Image Width
4073
Color
TRUE
Byte Order Motorola
FALSE
Thumbnail File Type
2
Thumbnail Mime Type
image/jpeg
Image Description
SIMPLE = T / file does conform to FITS standard
BITPIX = -32 / number of bits per data pixel
NAXIS = 3 / number of data axes
NAXIS1 = 6020 / length of data axis 1
NAXIS2 = 4015 / 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 = '2023-09-18T22:00:04' / UTC date that FITS file was created
DATE-OBS= '2023-09-17T05:38:32' / YYYY-MM-DDThh:mm:ss observation start, UT
INSTRUME= 'Canon EOS 1500D' / instrument name
OBSERVER= ' ' / observer name
TELESCOP= ' ' / telescope used to acquire this image
ROWORDER= 'BOTTOM-UP' / Order of the rows in image array
XPIXSZ = 3.7 / X pixel size microns
YPIXSZ = 3.7 / Y pixel size microns
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
FOCALLEN= 67.574 / Camera focal length
CCD-TEMP= 0 / CCD temp in C
EXPTIME = 2 / Exposure time [s]
STACKCNT= 118 / Stack frames
LIVETIME= 236 / Exposure time after deadtime correction
EXPSTART= 2.4602e+06 / Exposure start time (standard Julian date)
EXPEND = 2.4602e+06 / Exposure end time (standard Julian date)
APERTURE= 2.8 / Aperture of the instrument
ISOSPEED= 3200 / ISO camera setting
CTYPE1 = 'RA---TAN' / Coordinate type for the first axis
CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis
CUNIT1 = 'deg '
Orientation
The 0th row is at the visual top of the image, and the 0th column is the visual left-hand side
1
