The standard textbooks indicate that the start or conception of a new star formation is the collapse of a molecular cloud. But my background in thermodynamics, heat/mass transfer and fluid mechanics leaves this superficial explanation ungratifying (at least to me?)
Circulation and Jewelry – The Galactic Spiral Structure (Part 5)
The Rotten Fish Heat Engine – LDN1251 (Cepheus) in LRGB
There are so many things going on in this image, and in the object itself that I admired from others’ images that I just had to image it myself. Not only is every stage of star formation (from cloud collapse