M8 - The Lagoon Nebula - Revisited... (Cosgrove's Cosmos (Patrick Cosgrove))

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

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M8 - The Lagoon Nebula - Revisited...

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M8 - The Lagoon Nebula - Revisited...

Messier 8, Also known as the Lagoon Nebula, is a giant interstellar cloud located in the constellation Sagittarius and is 4000-6000 light years away. This is a rich star forming region - in fact it is one of the two such regions that is bright enough to be seen with the naked eye under dark skies.

This region is about 110 by 50 light years in size. In Binoculars or a small scope the nebulae appears gray. This is because it is still very faint and your eye is depending on its rods thater than its cones for seeing this object. Rods have no color receptors, thus the gray coloration seen. However in longer exposure, we can see the red color of HII emission - the gas is excited by the blue light from the recently formed stars and emits in a deep red as seen here.

There are also a group of dark nodules that can be seen, and these are listed as separate Bernard objects.

Also - look in my Astrophotography Album and see my first attempt at this object - it was the very first Astro photo I ever tried! Think I have gotten better! ;-)

This image resulted from 47 x 180 captures. Captured with a William Optics 132 mm FLT APO scope on an IOptron CEM60 mount. Camera was a ZWO ASI294MC-Pro. Capture was done using Sequence Generator Pro and PHD2 Guiding. Processing was with DeepSky Stacker, Pixinsight, and Photoshop.

Original
B
Final
C

B

Description: I reprocessed the image using starnet++ to seperate the stars from the nebulosity and reoriented the image to make it a bit more familiar,

Uploaded: ...

C

Description: Decided that I had hit the saturation too high on the last one, and had some processing artifacts showing around some brighter stars....

Uploaded: ...

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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.

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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	3639444
PixInsight job	B8JUL7PP6X76XB8Q4BS9JUWKIJQ89FE1
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h03m58s.28
RA (top/left)	18h06m04s.85
RA (top/right)	18h00m57s.93
RA (bottom/right)	18h01m51s.11
RA (bottom/left)	18h06m59s.23

Dec (center)	-24°17′04″.3
Dec (top/left)	-23°44′04″.10
Dec (top/right)	-24°02′07″.2
Dec (bottom/right)	-24°49′58″.5
Dec (bottom/left)	-24°31′47″.6

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M8 - The Lagoon Nebula - Revisited...

M8 - The Lagoon Nebula - Revisited...

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M8 - The Lagoon Nebula - Revisited...

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