M8 and M20 (Antha Adkins)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: Lagoon Nebula · M 20 · M 21 · M 8 · NGC 6514 · NGC 6523 · NGC 6526 · NGC 6530 · NGC 6531 · NGC 6546 · The star 4 Sgr · The star 7 Sgr · The star 9 Sgr · Trifid Nebula

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M8 and M20

Revision title: M8 and M20 using BXT

Link: https://acubedsf.com/2023/07/04/red-and-blue-in-the-sky-for-the-4th-of-july/

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M8 and M20

Revision title: M8 and M20 using BXT

Link: https://acubedsf.com/2023/07/04/red-and-blue-in-the-sky-for-the-4th-of-july/

This is two nebulae – M8 Lagoon and M20 Trifid – from the constellation Sagittarius. M8 is an emission nebula of ionized hydrogen gas where star formation is taking place. It is 5200 light years away from us, has apparent dimensions of 90 x 40 arcmin, and has an apparent magnitude of 4.6. M20 is a combination of three types of nebulas: the red side is an emission nebula of ionized hydrogen gas where star formation is taking place, the blue side is a reflection nebula of a cloud of dust reflecting light from a nearby star, and the black lines are a dark nebula of an interstellar cloud dense enough to block the light from behind it. It is 4100 light years away from us, has an apparent dimension of 28 arcmin, and an apparent magnitude of 6.3. Although they’re in the same direction from us, imagine living at the midpoint between them! They’d be much larger and brighter since they’d only be 550 light years away, but they’d be in opposite directions in the sky.Given their size, brightness, and proximity to one another, this pair is a great target for a small telescope.This image was generated from about 3.8 hours of data from the Bortle 2-3 dark skies of Dell City, Texas.

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Title: M8 and M20 using BXT

Description: Based on astrobin forum advice, I have reprocessed this using Russ Croman's BlurXterminator. WOW! What a difference! I have discovered there is a trade between having round stars with no halos and having lots of dim stars. I made the choice to have nicer stars for this image.

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Title: M8 and M20 with BXT and NXT

Description: New version, this time using both BlurXterminator and NoiseXterminator.

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M8 and M20

Revision title: M8 and M20 using BXT

M8 and M20

Revision title: M8 and M20 using BXT

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M8 and M20

Revision title: M8 and M20 using BXT

M8 and M20

Revision title: M8 and M20 using BXT

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