Sh2-136, the Ghost Nebula, LRGB ( Cedric Raguenaud )

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: LDN 1177 · Sh2-136 · VdB141

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Sh2-136, the Ghost Nebula, LRGB

Link: https://raguenaud.space/2022/08/sh2-136-en-lrvb/

Powered byPixInsight

Sh2-136, the Ghost Nebula, LRGB

Link: https://raguenaud.space/2022/08/sh2-136-en-lrvb/

Imaging Telescopes Or Lenses: Omegon Pro RC 355/2845 Truss
Imaging Cameras: SBIG STT-8300
Mounts: Sky-Watcher EQ8
Filters: Baader Blue (B-CCD) 36 mm · Baader Green (G-CCD) 36 mm · Baader Red (R-CCD) 36 mm · Baader UV/IR Cut / Luminance 36 mm
Accessories: Astro-Physics CCD Telecompressor (CCDT67)
Software: Pleiades Astrophoto PixInsight · Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)

Dates:: Aug. 21, 2022 · Aug. 22, 2022 · Aug. 23, 2022 · Aug. 24, 2022 · Aug. 25, 2022 · Aug. 26, 2022 · Aug. 27, 2022
Frames:: Baader Blue (B-CCD) 36 mm: 44×300″(3h 40′) -15°C bin 2×2
Baader Green (G-CCD) 36 mm: 49×300″(4h 5′) -15°C bin 2×2
Baader Red (R-CCD) 36 mm: 35×300″(2h 55′) -15°C bin 1×1
Baader UV/IR Cut / Luminance 36 mm: 119×300″(9h 55′) -15°C bin 1×1
Integration:: 20h 35′
Avg. Moon age:: 22.71 days
Avg. Moon phase:: 10.57%
Bortle Dark-Sky Scale:: 3.00

RA center: 21h16m53s.434

DEC center: +68°15′39″.59

Pixel scale: 0.844 arcsec/pixel

Orientation: 179.685 degrees

Field radius: 0.301 degrees

WCS transformation: thin plate spline

More info:Open

Resolution: 2048x1547

File size: 5.4 MB

Data source: Own remote observatory

Remote source: e-EyE Extremadura

My stars have 6 spikes. Most likely something on the compressor or a spider near a mirror.

Sharpless2 Objects
Entre Encinas y Estrellas (e-EyE)
Ritchey Chretien telescopes GSO Family

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Dismissals Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	6220199
PixInsight job	HLA61HWVO8GDBJDF4WGP995849X27PRU
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h16m53s.434
RA (top/left)	21h14m19s.577
RA (top/right)	21h19m28s.396
RA (bottom/right)	21h19m29s.553
RA (bottom/left)	21h14m15s.732

Dec (center)	+68°15′39″.59
Dec (top/left)	+68°04′37″.44
Dec (top/right)	+68°04′48″.18
Dec (bottom/right)	+68°26′33″.82
Dec (bottom/left)	+68°26′23″.50

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Sh2-136, the Ghost Nebula, LRGB

Sh2-136, the Ghost Nebula, LRGB

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Sh2-136, the Ghost Nebula, LRGB

Sh2-136, the Ghost Nebula, LRGB

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