M8-M20- nébuleuses de la lagune et trifide HOO (Matthieu TEQUI)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: 11 Sgr · 4 Sgr · 7 Sgr · 9 Sgr · B296 · B302 · B303 · B85 · B88 · B89 · B91 · IC 1274 · IC 1275 · IC 4684 · IC 4685 · LBN 25 · LBN 26 · LBN 27 · LBN 28 · LBN 29 · LBN 31 · LBN 33 · LBN 34 · LDN 180 · LDN 210 · LDN 211 · LDN 212 · LDN 213 · LDN 214 · LDN 221 · And 30 more.

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M8-M20- nébuleuses de la lagune et trifide HOO

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M8-M20- nébuleuses de la lagune et trifide HOO

Version HOO de la nébuleuse de la lagune M8 et de la nébuleuse trifide M20

Mix de données entre askar FRA400 et Hyperstar sur C925

Askar FRA400 + Zwo asi 2600MM

Ha:80x300sec

OIII:80x300sec

SII:60x300sec

Hyperstar sur C925 + Zwo asi 1600MM

M8: Ha:80x120sec

OIII:80x120sec

SII:60x120sec

M20: Ha: 55x120sec

OIII: 70x120sec

SII: 45x120sec

Incrustation de M8 et M20 faite à l’hyperstar dans le grand champ de l’askar. Cette incrustation a nécessité au préalable un drizzle de mes couches faites à l’askar afin de rapprocher les échantillonnages et pouvoir conserver les détails.

Je vous invite donc à regarder la full si vous voulez zoomer plutôt que les versions comprimées.

Je voulais refaire cette nébuleuse pour avoir également la nébuleuse à côté de M8 qui est particulièrement interessante car elle présente une nébuleuse obscure ainsi qu’une nébuleuse par réflexion et une en émission.

La Luminance contient un mixage des couche S et Ha.

Quant aux logiciels utilisés, 1ere essai avec topaz denoise utilisé au minimum et intégré partiellement avec le process pixelmath et des masques pour éviter certains artéfacts disgracieux.

Voici la vidéo de la méthode pour incruster:

https://youtu.be/R0-MFp9HBjU

Schmidt-Cassegrain Telescope (SCT) Imagers
Sharpless2 Objects
HyperStar Lens Astrophotography

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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	4705132
PixInsight job	C6SYZI4R4R45RUPFKY3FM0Z1S1FUWAG7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h04m49s.59
RA (top/left)	18h11m30s.33
RA (top/right)	17h57m15s.99
RA (bottom/right)	17h58m00s.50
RA (bottom/left)	18h12m29s.30

Dec (center)	-23°38′45″.6
Dec (top/left)	-22°23′40″.8
Dec (top/right)	-22°41′19″.9
Dec (bottom/right)	-24°52′59″.1
Dec (bottom/left)	-24°34′57″.6

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M8-M20- nébuleuses de la lagune et trifide HOO

M8-M20- nébuleuses de la lagune et trifide HOO

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M8-M20- nébuleuses de la lagune et trifide HOO

M8-M20- nébuleuses de la lagune et trifide HOO

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