NGC 7000 - The North America Nebula (SoundIdea)

NGC 7000 - The North America Nebula

Processed in PixInsight

Calibrate each channel separately with flats and darks.
Weight the subs using PSF Signal Weight.
Integrate with LocalNormalization and drizzle.
Run NoiseXTerminator and StarXTerminator on each channel.

Starless nebula

Stretch each channel to a pleasing contrast using GeneralizedHyperbolicStretch.
Combine the starless channels into an RGB image using the SHO "Hubble" palette.
Final tweaks to color balance and contrast using CurvesTransform.

Stars

Combine the star channels using PixelMath:

R = H_stars/2 + S_stars/2
G = H_stars/4 + S_stars/4 + O_stars/2
B = O_stars

Stretch to final brightness and contrast using Unlinked STF + HistogramTransform
Final tweaks to color saturation and balance using CurvesTransform

Final

Combine the stars with the nebula using PixelMath:

Photoshop-style "screen" blend: 1 - (1 - stars) * (1 - nebula)

Final tweaks to de-emphasize red and green using CurvesTransform.
DynamicCrop to trim stacking artifacts around the edge.
ICCProfileTransformation to lock-in the color profile.

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 failed
Started	...
Astrometry.net job	6068067
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

NGC 7000 - The North America Nebula

NGC 7000 - The North America Nebula

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Image Index:

Contribution Index (beta):

NGC 7000 - The North America Nebula

NGC 7000 - The North America Nebula

Equipment

Acquisition details

Description

Comments

Histogram

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