M8 & M20 - The Lagoon and Trifid Nebulae (Ha-SHO) (Olivier Ravayrol)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: Hourglass nebula · Lagoon nebula · M 20 · M 8 · NGC 6514 · NGC 6523 · NGC 6526 · NGC 6530 · NGC 6544 · NGC 6546 · The star 7Sgr · The star 9Sgr · Trifid nebula

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M8 & M20 - The Lagoon and Trifid Nebulae (Ha-SHO)

Link: http://astrophoto.pagesperso-orange.fr/deep-sky_fr.html

Powered byPixInsight

M8 & M20 - The Lagoon and Trifid Nebulae (Ha-SHO)

Link: http://astrophoto.pagesperso-orange.fr/deep-sky_fr.html

HaO-SHO

Luminance with Ha & OIII layers, Color with Ha,OIII,SII - filters narrow band 12nm

Ha:2h24, OIII:1h48, SII:30mn exposure time at 800 iso (Tournefeuille, France)

600/80 mm Refractor – 450D EOS filter removed - Ha, OIII, SII filters

Preprocessing with IRIS (Christian Buil software)

Image processing with Photoshop

Final touch with Lightroom

Original
B
Final
C

B

Description: New pretreatment with SIRIL software, New SHO treatment technic, New noise reduction with Noiseware plugin

Uploaded: ...

C

Description: Aigrettes main star correction

Uploaded: ...

The refractors!
Cloudy Nights
N.I.N.A. Users
AAA : Astronomes et Astrographes Amateurs
DSLR narrowband
Suburban Astrophotography
Imaged with APT
Narrowband imaging
Halpha by reflex
Low-Cost Astrophotography

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	3250333
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

M8 & M20 - The Lagoon and Trifid Nebulae (Ha-SHO)

M8 & M20 - The Lagoon and Trifid Nebulae (Ha-SHO)

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Image Index:

Contribution Index (beta):

M8 & M20 - The Lagoon and Trifid Nebulae (Ha-SHO)

M8 & M20 - The Lagoon and Trifid Nebulae (Ha-SHO)

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

In these public groups

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