- Cloudy Nights
- → Photo Gallery
- → Members Albums
- → Tracked Telescope and Camera/Lens Images
- → NGC 7789 (Caroline's Rose)






NGC 7789 (Caroline's Rose)
Uploaded by
EPinNC
, Sep 30 2023 12:25 PM
- Owner: EPinNC (View all images and albums)
- Uploaded: Sep 30 2023 12:25 PM
- Taken: 2023:09:01 00:05:10
- Views: 264
- Album: Tracked Telescope and Camera/Lens Images

Acquisition:
Bortle 7 skies
Nikon D5600 camera
ISO 200
Astro-Tech AT102ED refractor, 714mm focal length, f/7
HoTech 2" SCA field flattener (1X)
iOptron CEM26 mount
30s x 258 frames (2h 9m)
Processing:
Siril 1.2.4:
Crop to 4400 x 3300px
BQ Octantis' method of white balance, background subtraction, and histogram conditioning
Star desaturation
Synthetic blue channel (B=2*G-R) to reduce blue halos on bright stars
Modified arcsinh stretch (5x)
Background extraction
RawTherapee 5.11:
L*a*b* chrominance/luminance adjustment (to reduce chrominance noise)
Luminance noise reduction
GIMP 2.10:
Luminance curve
Saturation
Levels
Image META information
COMPUTED.UserCommentEncoding | UNDEFINED |
COMPUTED.Copyright | Siril v1.2.4 |
COMPUTED.Thumbnail.Height | 192 |
COMPUTED.Thumbnail.Width | 256 |
IFD0.ICC_Profile | |
THUMBNAIL.NewSubFile | 1 |
THUMBNAIL.ImageWidth | 256 |
THUMBNAIL.ImageLength | 192 |
THUMBNAIL.PhotometricInterpretation | 6 |
THUMBNAIL.SamplesPerPixel | 3 |
COMMENT.0 | SIMPLE = T / file does conform to FITS standard BITPIX = -32 / number of bits per data pixel NAXIS = 3 / number of data axes NAXIS1 = 4400 / length of data axis 1 NAXIS2 = 3300 / 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 MIPS-FHI= 1 / Upper visualization cutoff MIPS-FLO= 0 / Lower visualization cutoff BZERO = 0 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor DATE = '2024-11-11T15:20:08' / UTC date that FITS file was created DATE-OBS= '2023-09-01T00:05:10' / YYYY-MM-DDThh:mm:ss observation start, UT INSTRUME= 'Nikon D5600' / instrument name OBSERVER= ' ' / observer name TELESCOP= ' ' / telescope used to acquire this image ROWORDER= 'BOTTOM-UP' / Order of the rows in image array XPIXSZ = 3.92 / X pixel size microns YPIXSZ = 3.92 / Y pixel size microns XBINNING= 1 / Camera binning mode YBINNING= 1 / Camera binning mode FOCALLEN= 111.74 / Camera focal length CCD-TEMP= 0 / CCD temp in C EXPTIME = 29.9 / Exposure time [s] STACKCNT= 4644 / Stack frames LIVETIME= 138856 / Exposure time after deadtime correction EXPSTART= 2.46019e+06 / Exposure start time (standard Julian date) EXPEND = 2.46022e+06 / Exposure end time (standard Julian date) FILTER = 'mixed ' / Active filter name ISOSPEED= 200 / ISO camera setting HISTORY Crop (x=804, y=352, w=4400, h=3300) HISTORY Histogram Transf. (mid=0.500, lo=0.000, hi=1.000) HISTORY Synthetic stars: desaturate clipped stars HISTORY GHS ASINH pivot: 0.000, amount: 19.09 [0.00 0.50] HISTORY GHS ASINH pivot: 0.000, amount: 19.09 [0.00 0.50] HISTORY GHS ASINH pivot: 0.001, amount: 19.09 [0.00 0.50] HISTORY GHS ASINH pivot: 0.004, amount: 19.09 [0.00 0.50] HISTORY GHS ASINH pivot: 0.020, amount: 15.44 [0.00 0.50] HISTORY Background extraction (Correction: Subtraction) END |
File Name | gallery_361082_16772_1566653.jpg |
Unix Timestamp | 1731340202 |
Original File Size | 16793918 |
File Type | 2 |
Mime Type | image/jpeg |
Sections Found | ANY_TAG, IFD0, THUMBNAIL, COMMENT, EXIF |
HTML Sizes | width="4400" height="3300" |
Image Height | 3300 |
Image Width | 4400 |
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 = 4400 / length of data axis 1 NAXIS2 = 3300 / 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 MIPS-FHI= 1 / Upper visualization cutoff MIPS-FLO= 0 / Lower visualization cutoff BZERO = 0 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor DATE = '2024-11-11T15:20:08' / UTC date that FITS file was created DATE-OBS= '2023-09-01T00:05:10' / YYYY-MM-DDThh:mm:ss observation start, UT INSTRUME= 'Nikon D5600' / instrument name OBSERVER= ' ' / observer name TELESCOP= ' ' / telescope used to acquire this image ROWORDER= 'BOTTOM-UP' / Order of the rows in image array XPIXSZ = 3.92 / X pixel size microns YPIXSZ = 3.92 / Y pixel size microns XBINNING= 1 / Camera binning mode YBINNING= 1 / Camera binning mode FOCALLEN= 111.74 / Camera focal length CCD-TEMP= 0 / CCD temp in C EXPTIME = 29.9 / Exposure time [s] STACKCNT= 4644 / Stack frames LIVETIME= 138856 / Exposure time after deadtime correction EXPSTART= 2.46019e+06 / Exposure start time (standard Julian date) EXPEND = 2.46022e+06 / Exposure end time (standard Julian date) FILTER = 'mixed ' / Active filter name ISOSPEED= 200 / ISO camera setting HISTORY Crop (x=804, y=352, w=4400, h=3300) HISTORY Histogram Transf. (mid=0.500, lo=0.000, hi=1.000) HISTORY Synthetic stars: desaturate clipped stars HISTORY GHS ASINH pivot: 0.000, amount: 19.09 [0.00 0.50] HISTORY GHS ASINH pivot: 0.000, amount: 19.09 [0.00 0.50] HISTORY GHS ASINH pivot: 0.001, amount: 19.09 [0.00 0.50] HISTORY GHS ASINH pivot: 0.004, amount: 19.09 [0.00 0.50] HISTORY GHS ASINH pivot: 0.020, amount: 15.44 [0.00 0.50] 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 |
X-Resolution | 10748/91 |
Y-Resolution | 10748/91 |
Resolution Unit | 3 |
Software | GIMP 2.10.28 |
Date Taken | 2023:09:01 00:05:10 |
Copyright | Siril v1.2.4 |
Thumbnail Compression | JPEG Compression |
Thumbnail JPEG Interchange Format | 6156 |
Thumbnail JPEG Interchange Format Length | 9853 |
Exposure Time | 0/1 |
F Number | 0/10 |
ISO Speed Ratings | 0 |
Exposure Bias Value | 0/100 |
Focal Length | 0/10 |
Share links
BBCode | |
HTML | |
Image Link | |
Page Link |
Set as Photo

Save Cancel
- Cloudy Nights
- → Photo Gallery
- → Members Albums
- → Tracked Telescope and Camera/Lens Images
- → NGC 7789 (Caroline's Rose)
- Privacy Policy
- Terms of Service ·