Close up on M20 LRGBHa (Dawn Lowry)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: B85 · M 20 · NGC 6514 · Sh2-30 · Trifid Nebula

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Close up on M20 LRGBHa

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Close up on M20 LRGBHa

I've always been fascinated with the colors in combination of one another,This particularNebula is just one of my favorites.The subtle details in the AHA really add to it.I was not able to bring out as much of the faint surrounding dustPartially due to decreased time and partially because of my location, But I do plan to add more time to this as the years go on.

~~~~Tekkie stuffs:

Telescope:Explore Scientific 127mm CF FCD-100 reduced to 667mm F5.25

Camera: ASI183mmpro

Filters: Astrodon E series

Mount: Atlas EQ6R

Guiding camera: 290 mini with OAG

L RGB Ha: 82:40:27:30:27 at 180s

Total integration time: 10.3 hours

Seeing/ environment: 2-3

Bortle Class: Class 6 Backyard~ Central Indiana

Dates of acquisition: august September 2020. 4 nights

processing Pixinsight:

processing: considerations. MULTIPLE nights with good alignment (2 degree error allowed in SGP) flat and dark calibration on but not effective required crop to 2800 pixels

Crop

DBE

RGB combine masters

RGB workflow~PCC; MLT for Noise reduction

Lum workflow~decon with autopsf 45 iterations 5 layers; MLT for noise reduction

LRGB combine: after stretch~ Arc sin with Bg at 10%;

TGDVN and a restretch to bring up the black point

Curves with various masks to improve masking for lightness and sat boost

XPTR with masking and the dark script ; MLT for sharpening.

Morph to reduce the stars just a bit and ICC to end.

ZWO ASI183/QHY183
Women Astrophotographers
Cloudy Nights

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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.
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Status	Advanced success
Started	...
Astrometry.net job	4030371
PixInsight job	9CZ63SPUKIVBACIU7ND370377A1JRSZV
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h02m38s.427
RA (top/left)	18h03m51s.490
RA (top/right)	18h01m21s.785
RA (bottom/right)	18h01m25s.567
RA (bottom/left)	18h03m55s.436

Dec (center)	-22°58′39″.10
Dec (top/left)	-22°40′55″.60
Dec (top/right)	-22°41′51″.99
Dec (bottom/right)	-23°16′20″.79
Dec (bottom/left)	-23°15′23″.59

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Close up on M20 LRGBHa

Close up on M20 LRGBHa

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Close up on M20 LRGBHa

Close up on M20 LRGBHa

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