celestiary

Astronomical simulator of solar system and local stars (by pablo-mayrgundter)

Celestiary Alternatives

Similar projects and alternatives to celestiary

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better celestiary alternative or higher similarity.

celestiary reviews and mentions

Posts with mentions or reviews of celestiary. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-07-28.
  • Mission to reach and operate at the focal region of the solar gravitational lens
    2 projects | news.ycombinator.com | 28 Jul 2022
    hmm.. right.. if the angle of deflection is low and the star is close enough that its light and deflected light show up very close together. My intuition is this is not the case... remember Eddington's test of relativity was for deflection of starlight around our Sun. We're really close, yet it was observable with the moon obscuring the main sunlight.

    the article[1] says "For light grazing the surface of the sun, the approximate angular deflection is roughly 1.75 arcseconds." So, what, we take the arcsin of 1.75 arcseconds to get the apparent divergence ratio, and multiply that by distance to stars? As long as that value is larger than the aperture of your camera, then you don't get competing light? Or maybe you'd need something like the TESS satellite, where you have a screen specially created to only allow certain beam transits into your detector.

    I've worked with a nearest 10k stars database (https://celestiary.github.io/#sun) and the edge of that is about 2k light years away. So very roughly, let's say there's 1/8th of those in a certain direction... so you get.. what? some 2k sample points towards some distant object? But really most of them wouldn't deflect that object's light towards Earth, but usually over or undershoot.

    Don't really know how to put these together quickly, but is giving me some good food for thought!

    [1]https://en.wikipedia.org/wiki/Eddington_experiment

  • Stellarium Astronomy Software
    3 projects | news.ycombinator.com | 5 Mar 2022
    Thanks! Hmm.. not sure about that. I'm trying to jam it all around but can't get it to lock like that. If you can repro I'd appreciate a bug report! https://github.com/celestiary/web/issues
  • Show HN: I rebuilt the flash app Scale of the Universe in WebGL
    2 projects | news.ycombinator.com | 8 Dec 2021
    My own webgl port of Celestia, which allows zoom-out from Earth to the scale of nearest 10k stars:

    https://celestiary.github.io/

  • Open Source Mission Control Software from NASA
    5 projects | news.ycombinator.com | 28 Jan 2021
    Hmm, the demo has a little "live video" window of a rover's view from the Moon's surface. This seems like a good integration point for a web-based space simulator. I will be doing just this!

    https://github.com/pablo-mayrgundter/celestiary/issues/19

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about 1 month ago

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