Eagle and Omega Nebula (Andrew Klinger)

Celestial hemisphere: Southern · Constellation: Serpens (Ser) · Contains: Eagle nebula · IC 4701 · M 16 · M 17 · NGC 6611 · NGC 6618 · Omega nebula

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Eagle and Omega Nebula

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Eagle and Omega Nebula

Taken 8-1-16 at Atoka, OK

Scope: William Optics GT81 w/ 0.8x reducer (382mm focal length at f/4.7)

Mount: Orion Sirius EQ-G

Guidescope: Orion 50mm guidescope

Guiding camera: StarShoot Autoguider

Imaging camera: Canon t3i (unmodified)

ISO800

16x480" lights (2hr 8min total integration time)

40x darks

30x flats

200x bias

Processing Details:

PixInsight:

Dynamic Crop

DynamicBackgroundExtraction

Background Neutralization

Color Calibration

Histogram Transformation

Duplicate image in PixelMath ($T) to begin making a starless image

Removed small stars with MultiscaleMedianTransform and a StarMask (x2)

Removed larger stars with MorphologicalTransformation (x3)

HDRMultiscaleTransform with a RangeSelection on brightest areas

PixelMath to push faint nebula regions (1-(1-$T)*(1-$T))

Photoshop:

Merged starless photo with original calibrated photo using Luminosity layer blending

Unsharp Mask for sharpening

PixInsight:

ACDNR

Histogram Transformation

SCNR Green

Photoshop:

Saturation using MatchColor

Final contrast curve

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	Basic success
Started	...
Astrometry.net job	2052921
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Eagle and Omega Nebula

Eagle and Omega Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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Image Index:

Contribution Index (beta):

Eagle and Omega Nebula

Eagle and Omega Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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