On 10/21 the comet was receding but climbing in the sky, and still naked eye visible from Bortle 1.
Tail has about 8 deg in 10x56 binoculars but only about 2 deg captured in this image.
150p Quattro @ 3.45, Canon 60D, Home made Eq mount.
Guided with ZWO120MM, 300mm Super Takumar F/4, Phd/ NINA.
80x16” ISO 3200.
Comet was manually stacked in GIMP using subtract in Levels and manually aligning for minimum intensity.
Starnet was not used because it was creating artifacts in the coma.
Raw Therapee and Gimp for stretch snd noise reduction. Siril BE.
Image META information
COMPUTED.Copyright
Siril v1.2.0
IFD0.ImageWidth
3328
IFD0.ImageLength
4850
IFD0.BitsPerSample
8
IFD0.Compression
1
IFD0.PhotometricInterpretation
2
IFD0.SamplesPerPixel
3
IFD0.PlanarConfiguration
1
File Name
gallery_471492_27852_321364.jpeg
Unix Timestamp
1731225639
Original File Size
505226
File Type
2
Mime Type
image/jpeg
Sections Found
ANY_TAG, IFD0, THUMBNAIL, EXIF
HTML Sizes
width="3328" height="4850"
Image Height
4850
Image Width
3328
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 = 20 / number of bits per data pixel
NAXIS = 3 / number of data axes
NAXIS1 = 4850 / length of data axis 1
NAXIS2 = 3328 / 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 = '2024-10-23T21:22:08' / 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 = 4.3 / X pixel size microns
YPIXSZ = 4.3 / Y pixel size microns
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
FOCALLEN= 518.74 / Camera focal length
CCD-TEMP= 0 / CCD temp in C
HISTORY TOP-DOWN mirror
HISTORY Background extraction (Correction: Subtraction)
HISTORY Canon Banding Reduction (amount=1.00)
END
Orientation
The 0th row is at the visual top of the image, and the 0th column is the visual left-hand side
1
