LDN1622 is always an interesting object to me. The most interesting part for me is the Parsamian 3 (HBC515, HD288313) area. Anyhow, it looks like a fish trying pretty hard swimming toward the Orion nebula and about to cross the red river of Barnard’s Loop…
It has been a year since the last HaLRGB image. It’s about time.
On and off I captured about 50+ hours of Ha data from the backyard (Guess I had nothing else in mind at that time. LOL). But only got 7.6 hours of RGB data from Atoka dark site. I assume the dark site data is far away from enough. But can’t resist the temptation to take a peek what it would look like. Then here it is.
As expected the dark cloud is not showing up enough. I consider this is a project in progress. More data will be added in next couple of years to get the “desired” result.
Lacking RGB data indeed push the post-processing to the limit. A lot of Range Selection + PixelMath combinations used to extract every single drop of the signal. The starless version of the RGB masters look exactly like heavily pounded battle ground – all kinds of holes. 
The synthetic luminance master was created from the starless Ha master joined with the luminance data extracted from the combined RGB master. Another fun process to put the pre-main-sequence star area back into the final luminance master.
This image was picked by NASA Astronomy Photo Of the Day (APOD) on 2020/02/21 https://apod.nasa.gov/apod/ap200221.html; and was picked by AstroBin as the Image Of The Day on 2020/02/14.