Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  B85  ·  M 20  ·  NGC 6514  ·  Sh2-30  ·  Trifid nebula
Getting plate-solving status, please wait...
M 20, the Triffid Nebula, HOH-beta [v2], Stephen Garretson
Powered byPixInsight

M 20, the Triffid Nebula, HOH-beta [v2]

Getting plate-solving status, please wait...
M 20, the Triffid Nebula, HOH-beta [v2], Stephen Garretson
Powered byPixInsight

M 20, the Triffid Nebula, HOH-beta [v2]

Equipment

Loading...

Acquisition details

Loading...

Description

Here is M 20 in color from narrowband images. I gathered an hour of OIII, SII, and H-beta last night to add to the 2 hours of Ha3.5 from a few days ago. I know there should be much more blue in the outer part of the nebulosity surrounding the tri-part core, but could not bring it out...at least not yet; my processing skills need a boost there.

The formula for this image:

Red: 90% Ha3.5, 10% OIII

Green: 70% OIII, 30% Ha3.5

Blue: 100% H-beta

[Previously posted image was deleted and this new version posted.]

Comments

Sky plot

Sky plot

Histogram

M 20, the Triffid Nebula, HOH-beta [v2], Stephen Garretson