celestiary
Open MCT
celestiary | Open MCT | |
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4 | 27 | |
42 | 11,821 | |
- | 4.8% | |
8.0 | 9.5 | |
13 days ago | 3 days ago | |
JavaScript | JavaScript | |
- | GNU General Public License v3.0 or later |
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celestiary
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Mission to reach and operate at the focal region of the solar gravitational lens
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
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Stellarium Astronomy Software
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
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Show HN: I rebuilt the flash app Scale of the Universe in WebGL
My own webgl port of Celestia, which allows zoom-out from Earth to the scale of nearest 10k stars:
https://celestiary.github.io/
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Open Source Mission Control Software from NASA
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
Open MCT
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OpenMCT: A web based mission control framework
Even Max Verstappen uses it (albeit indirectly):
https://github.com/nasa/openmct/discussions/6392
- NASA JPL Open Source Rover That Runs ROS 2
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Would you be interested in such a mod for KSP2?
It would be cool to have it interface with this tool from NASA
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What are some open source projects that use Vue well?
NASA uses it: https://github.com/nasa/openmct
- Checking out mycodo and it's a win so far. r/mycodo could use some more members!
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[Ubuntu] How to install a newer version of Node than the one provided by apt?
and then tried to use npm to install Open MCT, but I got this error:
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Do you know any large company that uses Vue.js?
NASA for open mct https://nasa.github.io/openmct/. Williams Sonoma is in the middle of migrating to Vue(interviewed to work on this)
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Ask HN: What open source projects go to space?
Core Flight System (cFS) https://github.com/nasa/cFS
NASA has a lot of open source projects including a bunch that don't "go to space" but are used in space related projects (check each project for contributor guidelines):
https://github.com/nasa/openmct - web based mission control software
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Public satellite telemetry data?
Just found this: https://nasa.github.io/openmct/
- How does SpaceX produce its broadcast titles
What are some alternatives?
stellarium - Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
yamcs - A framework for mission control
THREE.js-PathTracing-Renderer - Real-time PathTracing with global illumination and progressive rendering, all on top of the Three.js WebGL framework. Click here for Live Demo: https://erichlof.github.io/THREE.js-PathTracing-Renderer/Geometry_Showcase.html
SurveyJS - Free Open-Source JavaScript form builder library with integration for React, Angular, Vue, jQuery, and Knockout that lets you load and run multiple web forms, or build your own self-hosted form management system, retaining all sensitive data on your servers. You have total freedom of choice as to the backend, because any server + database combination is fully compatible.
aladin-lite - An astronomical HiPS visualizer in the browser
Logical Or Not
stellarium-scripts - My scripts for Stellarium, the planetarium program. Good for studying the orbits of the planets and moons in real-time
Autotrack - Automatic and enhanced Google Analytics tracking for common user interactions on the web.
platform.js - A platform detection library.
awesome-space - 🛰️🚀A list of awesome space-related packages and resources maintained by The Orbital Index
InversifyJS - A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.