A mosaic of the North-America nebula (NGC7000), made from three overlapping images.
The main part (left) is made of FITS gathered all over 2020. I hand-picked the best ones of each session to get about 3h30 of exposure. The two panels on the right have been collected last week, each one about 2 hours. The individual FITS are 10-second long.
The data were collected with a Stellina (Vaonis), from my balcony in Bortle-5 conditions.
FITS stacked in DSS (+ darks for each temperature)
Resulting images revealed in SiriL
Mosaic made in Affinity Photo
Cosmetic edits in Affinity Photo
Image META information
COMPUTED.Copyright
(c)Capitaine Nautilus
1#090
%G
IPTC.ObjectName
NGC7000-NorthAmerica_DSS_Siril_Mosaic3panels_AP
IPTC.CopyrightNotice
(c)Capitaine Nautilus
IPTC.Caption
Cygnus Wall (NGC7000)
---
Stacking mode: Intersection
Alignment method: Automatic
Stacking step 1 ->878 frames (Gain: 200) - total exposure: 2 hr 26 mn 20 s
RGB Channels Background Calibration: No
Per Channel Background Calibration: No
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
-> No Offset -> Dark: 1 frames (Gain : 200) exposure: 10 s
-> No Flat
---
Mirror X
Background neutralization
Canon Banding Reduction (amount=1.00, Protect=TRUE, invsigma=1.00)
Asinh Transformation: (stretch=1000.0, bp=0.00000)
Histogram Transf. (mid=0.130, lo=0.083, hi=1.000)
File Name
gallery_338446_14007_3396158.jpg
Unix Timestamp
1618752943
Original File Size
4709495
File Type
2
Mime Type
image/jpeg
Sections Found
ANY_TAG, IFD0, EXIF
HTML Sizes
width="3586" height="2878"
Image Height
2878
Image Width
3586
Color
TRUE
Byte Order Motorola
TRUE
Image Description
Cygnus Wall (NGC7000)
---
Stacking mode: Intersection
Alignment method: Automatic
Stacking step 1 ->878 frames (Gain: 200) - total exposure: 2 hr 26 mn 20 s
RGB Channels Background Calibration: No
Per Channel Background Calibration: No
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
-> No Offset -> Dark: 1 frames (Gain : 200) exposure: 10 s
-> No Flat
---
Mirror X
Background neutralization
Canon Banding Reduction (amount=1.00, Protect=TRUE, invsigma=1.00)
Asinh Transformation: (stretch=1000.0, bp=0.00000)
Histogram Transf. (mid=0.130, lo=0.083, hi=1.000)
Orientation
The 0th row is at the visual top of the image, and the 0th column is the visual left-hand side
1
