M17- The Omega Nebula (lefty7283)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: M 17 · M 18 · NGC 6613 · NGC 6618 · Omega nebula · Sh2-45 · VdB121

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M17- The Omega Nebula

Powered byPixInsight

M17- The Omega Nebula

Captured on May 29th, and June 1st and 2nd, 2019 from the roof of my Bortle 7 apartment

**[PixInsight Processing](https://i.imgur.com/8AJPuId.png):**

* BatchPreProcessing

* Blink

* ImageIntegration

* DrizzleIntegration (2X, VarK 1.5)

* DynamicCrop

* DynamicBackgroundExtraction

* AutomaticBackgroundExtraction (Oiii only)

* Deconvolution ([/u/burscikas' method](https://www.youtube.com/watch?v=dYieeLZ--g0))

* TVG/MMT Noise reduction per channel

* HistogramTransformation (Permanently apply Auto-STF stretch)

* PixelMath to combine channels

> R=iif(Ha > .15, Ha, (Ha*.8)+(Oiii*.2))

> G=iif(Ha > 0.5, 1-(1-Oiii)*(1-(Ha-0.5)), Oiii *(Ha+0.5))

> B=iif(Oiii > .1, Oiii, (Ha*.3)+(Oiii*.2))

* AutomaticBackgroundExtraction

* SCNR

* HDRMultiscaleTransform

* A ***LOT*** of [Curve](https://i.imgur.com/rjMUwfv.jpg)Transformations for lightness, hue, and saturation

* LRGBCombination with Ha as luminance

* ACDNR noise reduction

* MorphologicalTransformation to reduce star sizes

* MultiscaleLinearTransform noise reduction

* Resample to 75%

* Annotation

ZWO ASI1600MM/QHY163M

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	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

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.
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	2748394
PixInsight job	8T9CNLE3AU60U6JALWYXO310XSM3GHJV
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h20m50s.530
RA (top/left)	18h18m32s.821
RA (top/right)	18h18m02s.196
RA (bottom/right)	18h23m09s.603
RA (bottom/left)	18h23m37s.475

Dec (center)	-16°27′16″.71
Dec (top/left)	-15°35′35″.97
Dec (top/right)	-17°13′36″.27
Dec (bottom/right)	-17°18′53″.58
Dec (bottom/left)	-15°40′51″.48

Image Index:

Contribution Index (beta):

M17- The Omega Nebula

M17- The Omega Nebula

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Image Index:

Contribution Index (beta):

M17- The Omega Nebula

M17- The Omega Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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