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Dave Payne's Astrophotography & Interpretation

Dave Payne's Astrophotography & Interpretation

Imaging and Interpretation of Astro-Photographs

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thermodynamics

CategoryHome ยป thermodynamics

The Cave Nebula and Hydrogen’s Journey

The Cave Nebula and Hydrogen’s Journey

(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

David Payne April 27, 2025April 28, 2025 All Categories, Dark Nebulae, Emission Nebulae, Photography, Star Formation No Comments Read more

Collapse of a Molecular Cloud in 3 waves

Collapse of a Molecular Cloud in 3 waves

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?) 

David Payne April 8, 2025April 28, 2025 All Categories, Dark Nebulae, Emission Nebulae, Photography, Star Formation Read more

The Rotten Fish Heat Engine – LDN1251 (Cepheus) in LRGB

The Rotten Fish Heat Engine – LDN1251 (Cepheus) in LRGB

The Rotten Fish Heat Engine: LDN 1251 (Cepheus) in LRGBAskar 151phq; AP Mach2 GTO; ASI6200MM, – Chroma LRGBL: (85 x 150s 61 Bin 1, Gain 100), R,G,B: (43,44,38 x 180s, Bin 1, Gain 100)Total integration time = 9.8 hrs (Aug 3,4

David Payne March 27, 2025April 28, 2025 All Categories, Dark Nebulae, Star Formation Read more

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Choose a Recent Post

  • A Rotting Fish tells no tails
  • The Whirlpool Galaxy (M51) – In for Questioning
  • Stars are born – Have a Cigar
  • The Cave Nebula and Hydrogen’s Journey
  • Swirls, Eddies, and Star Nucleation in Molecular Clouds

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  • David Payne on The Whirlpool Galaxy (M51) – In for Questioning
  • Ron Fisher on The Whirlpool Galaxy (M51) – In for Questioning

Recent Comments

  1. David Payne on The Whirlpool Galaxy (M51) – In for Questioning
  2. Ron Fisher on The Whirlpool Galaxy (M51) – In for Questioning

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