davenn's latest activity
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davenn replied to the thread Collection of Lame Jokes.
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davenn replied to the thread Collection of Lame Jokes.
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Today's quake from my seismo here in Sydney, Australia M 6.4 - Banda Sea 2025-10-28 14:40:18 (UTC) 6.694°S 130.031°E 142.0 km depth
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Halloween:
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Light from stars is emitted as visible light and reaches us as visible light (ditto the other frequencies stars emit). No energy is lost...
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Hello, I attach my last atempts, this saturday was clear moonless so I get out telescope after long time. Images are made with...
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davenn reacted to collinsmark's post in the thread Our Beautiful Universe - Photos and Videos with
Love.
The Jellyfish Nebula (a.k.a. IC 443, Sh 2-248) scooped up from my back patio, Feb. - Mar. 2025. The nebula is a supernova remnant found... -
davenn reacted to collinsmark's post in the thread Our Beautiful Universe - Photos and Videos with
Like.
For me it's pretty invaluable. There's a lot of "bang for the buck," once the initial setup/workflow is debugged and figured out. Again... -
davenn reacted to collinsmark's post in the thread Our Beautiful Universe - Photos and Videos with Like.
Here's an image I captured last Tuesday night [Edit: actually, Monday night/Tuesday morning], a little less than a week before...
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davenn reacted to collinsmark's post in the thread Our Beautiful Universe - Photos and Videos with Like.
Have you tried flat frame calibration? I'm a stickler for flats. Every deep sky image I've ever posted here I've processed with flat...
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If you measure a linear ramp then the source impedance must be designed to be constant current. No problem but one can't draw...
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Agreed. You could design circuits with a superconducting component and a long time constant and you could design circuits with a...
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Why are you putting a resistor in series with a superconducting inductor? That kind of defeats the purpose, no?
