M8 The Lagoon Nebula in Sagittarius Mosaic in NB (Ian Parr)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: Lagoon Nebula · M 8 · NGC 6523 · NGC 6526 · NGC 6530 · NGC 6544 · The star 7 Sgr · The star 9 Sgr

M8 The Lagoon Nebula in Sagittarius Mosaic in NB, Ian Parr

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M8 The Lagoon Nebula in Sagittarius Mosaic in NB

Powered byPixInsight

M8 The Lagoon Nebula in Sagittarius Mosaic in NB

Messier 8 (NGC 6523) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as an H II region.
It is a treat at the eyepiece and a great object for imaging in RGB and Narrow Band.

This is another run through a lot of old data for a four panel mosaic I did in 2021. Working with the wiz bang new tools in Pixinsight certainly is a game changer. Notably, BlurXTerminator, which was applied twice with calculated PSF values on each channel before combination. Then the Mosaic was compiled with PhotoMetric Mosaic and SpectroPhotometricColorCalibrationa applied to the final Linear result. Another run through BlurXTerminator before Generalised Hyperbolic Stretching to Non-Linear, and StarXTerminator for creating the separated Starless for masking, and Stars.
Local Histogram Equalisation and UnsharpMask are applied before the stars and starless are recombined in PixelMath and NoiseXterminator applied to finish.
It was quite the adventure with many wrong turns so it took a few goes and a LOT of CPU time to get a result I can live with.
This is a 50 % reduction as the Astrobin frowns on posting 70Mb Jpgs.

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	7047621
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M8 The Lagoon Nebula in Sagittarius Mosaic in NB

M8 The Lagoon Nebula in Sagittarius Mosaic in NB

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Image Index:

Contribution Index (beta):

M8 The Lagoon Nebula in Sagittarius Mosaic in NB

M8 The Lagoon Nebula in Sagittarius Mosaic in NB

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