Imaging and Interpretation of Astro-Photographs
The unique question mark appearance of M51, its size (77 thousand light years, 90% of Milky Way) proximity to us (only 31 million light years) made it a galaxy of interest for me, so I brought it in for some
(Full Res in RASC Zenfolio, or full res mouseover in Astrobin) (Full Res in RASC Zenfolio, or full res mouseover in Astrobin) SH2-155 or Caldwell 9: The Cave Nebula in Cepheus Askar 151phq; AP Mach2 GTO; ASI6200MM, – Chroma Broadband
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?)
Ou4 (The Squid Nebula) represents a nice challenge to astrophotography and I find myself going back to it almost annually to try another technique and see if my skill and available processing tools have improved. As part of my new