M8 Lagoon Nebula - emphasizing detail cloud structure (Alex Woronow)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: 7 Sgr · 9 Sgr · B296 · B88 · B89 · Hourglass nebula · Lagoon nebula · M 8 · NGC 6523 · NGC 6526 · NGC 6530 · Sh2-25 · Sh2-28 · The star 7Sgr · The star 9Sgr

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M8 Lagoon Nebula - emphasizing detail cloud structure

Powered byPixInsight

M8 Lagoon Nebula - emphasizing detail cloud structure

M8 Lagoon Nebula

OTA: Star-Fire 175 (f/8)

Camera: FLI - PL16070AE

Observatory: Deep Sky West

EXPOSURES:

Red: 21 x 900 sec.

Blue: 9 x 900

Green: 12 x 900

Lum.: 12 x 900

Hydrogen: 9 x 900

Total exposure: ~11.6 hours

Image Width: ~1.4 deg

FWHM (Lum stack) ~2.9 arcseconds

Processed by Alex Woronow using PixInsight, StarNet++, Matlab , Topaz & Aurora HDR in 2019

M8 is an ionized hydrogen region (HII) and an active star-forming region. It lies about 4000 to 6000 light-years from us. It is a relatively bright object at a magnitude of about 4.6, and is easily visible in binoculars on a dark night. NGC 6530, the cluster of stars just about in the middle of the image, consists of 50 to 100 very young stars (~2M years old) and they largely provide the source for the nebula’s glow. The dark streaks within M8 are called “Bok globules” and are locations of collapsing proto-stellar materials. In fact the first four Herbig-Haro objects were discovered in this nebula. (HH objects are bright patches of gas associated with the earliest stages of star formation and material ejection.)

Surrounding the bright nebula, one can see meandering channels of a dark nebula known as LDN 180.

(Source: largely Wikipedia & messier-objects.com)

Narrowband imaging
The refractors!

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Status	Advanced success
Started	...
Astrometry.net job	2791499
PixInsight job	OPYJ2F6PW56MDOS4PWBW1ZG9ZHK6RHF4
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h04m34s.60
RA (top/left)	18h02m25s.58
RA (top/right)	18h02m32s.99
RA (bottom/right)	18h06m43s.89
RA (bottom/left)	18h06m33s.79

Dec (center)	-24°15′11″.1
Dec (top/left)	-23°33′04″.1
Dec (top/right)	-24°58′35″.1
Dec (bottom/right)	-24°57′13″.7
Dec (bottom/left)	-23°31′45″.5

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M8 Lagoon Nebula - emphasizing detail cloud structure

M8 Lagoon Nebula - emphasizing detail cloud structure

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M8 Lagoon Nebula - emphasizing detail cloud structure

M8 Lagoon Nebula - emphasizing detail cloud structure

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