LDN 1235 - The Dark Shark Nebula (lefty7283)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 16 Cep · The star 16Cep · VdB149 · VdB150

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LDN 1235 - The Dark Shark Nebula

Powered byPixInsight

LDN 1235 - The Dark Shark Nebula

Had a great night at a [darksite with some club members.](https://i.imgur.com/psbePGz.jpg) We all brought our big dobs and managed to see all 8 planets, Comet 21P, Kemble's Cascade in 25x100 Binoculars, and lots of faint NGC galaxies! I brought along my imaging setup and despite PHD fucking up and throwing away 25 minutes of data, I'm still happy with this dark nebula. [Captured on July 8th, 2018 from a Bortle 3 zone.](https://i.imgur.com/lVz0x2o.jpg)

**Equipment:**

* TPO 6" F/4 Imaging Newtonian

* Orion Sirius EQ-G

* Canon Rebel T3i (Astro modified)

* Baader MPCC Mark III

* Agena 50mm Deluxe Straight-Through Guide Scope

* ZWO ASI-120MC for guiding

**Acquisition:** 3 hours 30 minutes

* RGB- 42x300" at ISO 800

* Darks- 3

* Flats- 50

* Bias- 250

**Capture Software:**

EQMod mount control. Captured using N.I.N.A. and PHD2 for guiding and dithering

**PixInsight Processing:**

* BatchPreProcessing

* ImageIntegration

* DynamicCrop

* DynamicBackgroundExtraction

* CanonBandingReduction

* PhotometricColorCalibration

* TVGDenoise

* MultiscaleMedianTransform

* MaskedStretch

* ACDNR

* LRGBCombination

* [Curves](https://i.imgur.com/UHlv6Ms.jpg)Transformation

/r/astrophotography

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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.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal 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	3137115
PixInsight job	H4CFPMRYX16SZRRL39PUZ78IPUAGBIMB
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h08m23s.65
RA (top/left)	22h22m49s.89
RA (top/right)	21h53m52s.26
RA (bottom/right)	21h55m01s.30
RA (bottom/left)	22h21m51s.50

Dec (center)	+73°06′06″.2
Dec (top/left)	+73°44′23″.7
Dec (top/right)	+73°43′53″.8
Dec (bottom/right)	+72°24′16″.5
Dec (bottom/left)	+72°24′45″.8

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LDN 1235 - The Dark Shark Nebula

LDN 1235 - The Dark Shark Nebula

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LDN 1235 - The Dark Shark Nebula

LDN 1235 - The Dark Shark Nebula

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