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About Ags

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    Red Dwarf

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    Astronomy, computers, programming, photography, buying stuff
  • Location
    The Netherlands
  1. Why not use the local temperature gradient caused by radiative heat loss to charge your phone? These researchers turned the cold blackness of outer space into more light pollution: https://www.sciencedaily.com/releases/2019/09/190912111015.htm
  2. It is the KELT (Kilodegree Extremely Little Telescope) in the Karoo, South Africa.
  3. Actually it might not work so well as the structures can be quite small: https://apod.nasa.gov/apod/ap191002.html These are only light months across - not many stars in front or behind?
  4. Dark nebula don't block all light. so Stars behind the nebula are visible in near IR. So you can get distance to the stars in front of the nebula and distances to stars within and beyond the nebula, which surely gives us the distance to the nebula? I don't know if GAIA measures distances in Near IR however.
  5. Yes, PNG is much better than JPG format. PNG was actually invented to replace GIF and JPG formats.
  6. I find when I am doing a visual session, I wish I was doing imaging, and when i am doing imaging, I really regret it and wish I was doing visual
  7. Yeah, but how big were the photosites? I'm guessing you could land a helicopter on them...
  8. I like that the Starship is made of steel. Proper ships have rivets! Musk claims he can expand annual launch capacity by a factor of 1000 with this system. It is hard to imagine demand at that level. But maybe the Japanese can finally build the orbital solar power arrays they have been talking about for decades? Forget James Webb Telescope. This thing gonna put up the the BFT (Big Falcon Telescope) Also, regarding the famous SpaceX graphic showing four stages of Mars terraforming - in my opinion if they get to stage 2 (significant bodies of liquid water) they can say "job done" already. No idea what kind of tech could get us to stage 3 or 4...
  9. The first prototype of this rocket exists and is sitting under the Texas stars right now.
  10. Updated time: midnight UTC. And there is a live stream: https://www.space.com/17933-nasa-television-webcasts-live-space-tv.html
  11. Elon Musk is giving his annual Starship update tonight at 18.00-19.00 EDT. (midnight here in Holland) There is no link for a live stream yet.
  12. Yeah, I have heard that trick works well - but it doesn't have the aesthetic refinement I require from my setup
  13. I have been slowly putting together a flexible setup consisting of a Berlebach Report 112 short tripod, and a Castor alt-az for undriven visual dual scope DSO hunting, and an AZ-GTi for goto and planetary viewing and imaging. I am looking at upgrading my planetary/lunar scope from a Skymax 102 to something a bit bigger that still falls into the grab and go category and can still be carried by the AZ-GTi. I keep coming back to the C6: weighing around 3.8 kgs it would fit in the carry capacity of the mount when loaded up with accessories. At F10 it is a better fit for my ASI178MM camera (2.4 um pixels) than the F13 Mak, and 6 inches of aperture would be much better for planetary imaging. The greater aperture would be kinder on my eyes for visual planetary observing. It would go nicely on the Castor opposite my ST80 for DSO hunting, particularly with 6.3 reducer. But it's a lot of money - am I missing something?
  14. Thanks. I tried using smaller alignment points this time and I think it made a big improvement. I can't see a green splotch but I'll take your word
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