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ah.. something I was trying to convey here blacktree.cocoaforge.com/forums/viewtopic.php?p=24956#24956
David Colquhoun diedn0n !0th August 2016. This collection of photos celebrates his life and the beautiful boats he owned.
Bradley Wilson, Midwestern State University; and Brady Teufel, California Polytechnic State University taught a pre-conference workshop on workflow at the ACP national workshop in San Francisco. Students: Jack Lambert, Andy Bao and Xander Fu
✨ La Nebulosa: IC 1805✨
Tonight I’m taking you to the heart of Cassiopeia: IC 1805, the Heart Nebula. ❤️✨
A vast expanse of glowing hydrogen, thousands of light-years away, where new stars are born… and where the sky seems to remind us that even the universe can take on a “human” shape.
It’s a large H II region (ionized hydrogen) where star formation is actively taking place: inside it stands out the open cluster Melotte 15, which “carves” and shapes the gas through stellar winds and radiation.
Enjoy the view! 🌌
🔭 Object technical data
• Name: IC 1805 (Heart Nebula)
• Constellation: Cassiopeia
• Type: Emission nebula / H II region
• Distance: ~7,500 light-years (order of magnitude)
• Apparent size: about 60′ (≈ 1°), so very extended
• Physical size: ~150 light-years (order of magnitude)
• Nickname: “Heart” because of its characteristic Hα shape
🔭 Equipment and imaging settings:
️ Site: Manciano
🔭 Telescope: Skywatcher F/4
🔍 Guiding: Evoguide + Field Flattener
📷 Camera: Touptek 294MC PRO CMOS
⚙️ Mount: CGXL
⏱️ Exposures: 192× 1200 s (data 12/11 - 14/12/25) - Mosaic 4P
️ Gain: 910
️ Offset: 99