M82 or “The Cigar Galaxy” in LHaRGB (Ursa Major) , May 17,18,19 & 24 2023Planewave CDK12.5″ telecope and A-P 1100GTO AE mount; ASI6200MM Camera, Antlia Pro BB & 3nm Ha FiltersL (37 x 200s exposures, Bin 2×2, Gain 100); R,G,B
(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
Sh2-135 – Eddies in a Cepheus Molecular Cloud (click to view full screen)Askar 151phq; AP Mach2 GTO; ASI6200MM, – Chroma Broadband and 5nm Narrowband FiltersH,O,S: (49,35,45 x 720s, Bin 1, Gain 100); R,G,B: (28,21,27 x 180s, Bin 1, Gain 100)Total
Crescent Nebula (NGC6888) in SHO Askar 151phq; AP Mach2 GTO, ASI6200MM, – Chroma RGB & 5nm Narrowband FiltersH,O,S: (37,24,27 x 720s 61Bin 1, Gain 100) R,G,B: (16,15,12 x 120s, Bin 1, Gain 100)Total integration time = 19.0 hrs (June 12,13,14,18,20,22
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?)
Stars in the Andromeda GalaxyAug/Sep 2021M31 – Andromeda Galaxy, focussed on NGC206CDK12.5 / A-P1100GTO AE / ASI6200MM / Optolong LRGB (full res RASC Zenfolio or Astrobin) I was asked at a RASC meeting if we could see stars in a