Double Cluster in Perseus meets Heart & Soul Nebula ( Steve Ludwig )

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Double Cluster in Perseus meets Heart & Soul Nebula

Imaging Telescopes Or Lenses: Samyang 135mm F2.0 ED UMC
Imaging Cameras: Nikon D3300
Mounts: Sky-Watcher Star Adventurer
Software: PixInsight · Deep Sky Stacker (DSS)

Dates:: Dec. 22, 2019
Frames:: 77×120″(2h 34′)
Integration:: 2h 34′
Avg. Moon age:: 25.67 days
Avg. Moon phase:: 15.93%

RA center: 02h37m02s.65

DEC center: +59°39′07″.6

Pixel scale: 6.219 arcsec/pixel

Orientation: 100.583 degrees

Field radius: 6.197 degrees

More info:Open

Resolution: 5990x3990

File size: 8.3 MB

Data source: Backyard

Equipment

- Nikon D3300 (unmodified)

- Samyang 135mm f2 @ f2

- Skywatcher Star Adventurer Pro Pack

- no-name tripod

Acquisition

- 77 lights x 120 s = 2 h 34 min total exposure time

- no dark, flat, bias frames

- no filters

- ISO 200

- Bortle 4 zone

Processing

-> lights stacked in DSS

-> median kappa sigma clipping method

-> unmodified TIF opened in PixInsight

-> STF stretch

-> dynamic crop

-> dynamic background extraction

-> background neutralization

-> color calibration

-> use of starnet++ to separate background from stars

background

-> local histogram equalization to increase background contrast

-> SCNR green to remove green color and to improve color noise

-> red channel extraction

-> range selection to create a mask containing the heart and soul nebula

-> curves transformation to increase saturation of heart and soul nebula

-> mask inversion

-> curves transformation to reduce saturation of remaining background (color noise reduction/removal)

-> ACDNR to reduce noise

stars

-> SCNR green to remove green color

-> invert image

-> SCNR green to remove purple (now green) star fringes

-> invert image

-> curves transformation to increase saturation

-> pixel math to recombine stars and background

-> final histogram/curves transformation

-> saved as jpg

Original
Final
B

B

Description: In the new revision I removed purple star fringes, removed most of the color noise in the background and revealed a bit more of the background dust.

Uploaded: ...

PixInsight Addicts
Camera Lens Astrophotography
Sky-Watcher Star Adventurer
/r/astrophotography

Deep Space Objects

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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Status	Advanced success
Started	...
Astrometry.net job	3934809
PixInsight job	7N1UIWOHORFQAJOSJ9VCWBZSN339EFKW
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h37m02s.65
RA (top/left)	02h53m28s.54
RA (top/right)	03h16m12s.66
RA (bottom/right)	02h13m53s.36
RA (bottom/left)	02h06m54s.61

Dec (center)	+59°39′07″.6
Dec (top/left)	+53°53′12″.1
Dec (top/right)	+63°45′27″.5
Dec (bottom/right)	+65°14′06″.10
Dec (bottom/left)	+54°58′53″.7

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Double Cluster in Perseus meets Heart & Soul Nebula

Double Cluster in Perseus meets Heart & Soul Nebula

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Double Cluster in Perseus meets Heart & Soul Nebula

Double Cluster in Perseus meets Heart & Soul Nebula

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Acquisition details

Description

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Revisions

B

Sky plot

Histogram

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