[HN Gopher] I, Voyager: Open-Source Software Planetarium
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I, Voyager: Open-Source Software Planetarium
Author : Breadmaker
Score : 262 points
Date : 2023-10-19 11:43 UTC (3 days ago)
(HTM) web link (www.ivoyager.dev)
(TXT) w3m dump (www.ivoyager.dev)
| ta8645 wrote:
| The web page takes a while to load, but is quite responsive and
| illuminating once it gets going. Really well done.
| jen729w wrote:
| Tiny nitpick: the progress bar on loading is black on a bit
| less black. It's basically impossible to see, so for a while I
| thought that nothing was happening.
| ashton314 wrote:
| Beautiful. Reminds me of Stellarium, also open-source:
| https://github.com/Stellarium/stellarium
|
| As I kid I spent _hours_ pretending to be Sulu at the helm of the
| Enterprise while flying through a field of stars. :) Good times.
| BHSPitMonkey wrote:
| For me, that was Celestia: https://celestiaproject.space/
|
| Apparently both were first released in the same year, 2001.
| Interesting coincidence!
| ashton314 wrote:
| Wait, I had both programs! I was playing Celestia!!! Thank
| you so much for reminding me of that!
| the__alchemist wrote:
| You might try Space Engine too, for that experience.
| two_in_one wrote:
| Stellarium is great, thanks. Working on Linux is a huge plus.
|
| It s would be perfect with telescope control. Just curious how
| hard it is to attach some control and use Stellarium as user
| interface? Scopes have standardized API for control and
| cameras, which makes it easier. I can try...
| freedomben wrote:
| Wow, I am truly impressed. Great work! I'll be donating to help
| this effort. This has already been incredibly helpful to me and
| my son who is learning about the solar system. Being able to see
| the orbits of each planet in such a fantastic UI makes it a cinch
| to understand why Pluto takes turns being the most outer planet.
|
| It's a Progressive Web App, uses Godot, so there's nothing to
| install; it's just a web page!
| lukasb wrote:
| Works great on my M1 iPad except for textures not loading on the
| planet of focus.
| boobek wrote:
| It's morning.. I thought I'll see a lot of open source software
| codes/projects in some form.. :)
| shafiemukhre wrote:
| Love this!
| hddqsb wrote:
| Very cool. Some small criticism/feedback:
|
| - Pluto is shown as if it is spinning around itself, but in
| reality Charon (its largest moon) is so heavy (12.2% of Pluto)
| that their barycentre
| (https://en.wikipedia.org/wiki/Barycenter_(astronomy)) is
| actually outside of Pluto's surface.
|
| - All the planets and moons are shown as perfectly spherical, but
| for the smaller ones (e.g. Charon) that's not accurate. Not sure
| if there is a practical way to fix this though.
|
| - Zooming using the scrollwheel is backwards -- rolling the
| scroll wheel up zooms out, but in all other applications on my
| system it zooms in.
|
| - The panels are very annoying. They can be hidden by unticking
| in the top right corner, but they still come back on mouseover
| (getting in the way when trying to click on a planet). I can't
| find a way to completely close them; they can be moved around,
| but they refuse to go offscreen. "Options > GUI Size> Small"
| helps a little.
| ourmandave wrote:
| I'm glad you mentioned the panels come back on mouse over.
|
| I unchecked one and it disappeared, but I had no idea how to
| show it again.
|
| I'm used to panels shrinking to a down caret or chevron (i.e.
| ^, >).
| hddqsb wrote:
| EDIT:
|
| - They do have several non-spherical moons and asteroids
| (bottom left), which is awesome. I tried finding a 3D model of
| Charon online; NASA's model
| (https://science.nasa.gov/resource/charon-3d-model/) is
| disappointingly spherical, on the other hand
| https://3d-asteroids.space/moons/P1-Charon has a satisfyingly
| bumpy surface (for half of Charon).
|
| - Fixing the zoom direction is almost within reach -- there is
| an option "Mouse Rate: In/Out" which defaults to 1 and can be
| used to slow down / speed up zooming, unfortunately it won't
| let me set it to a negative value to flip the direction.
| daedalus_f wrote:
| Lovely! Learnt about the Hildas.
|
| One possible bug (??): when looking down on the system (press the
| system button on the bottom centre panel, 90 degrees to the
| ecliptic) the orbit of pluto will be projected to cross or not
| cross that of neptune depending on which side of the system you
| look down from.
| otteromkram wrote:
| Not on desktop, but is this similar to NASA's Eyes?
|
| https://eyes.nasa.gov/
| dade_ wrote:
| Great project. I loved the idea of Visible Solar System on the
| Commodore VIC-20, but the execution was a bit limited by the
| technology 40 years ago to say the least.
| https://www.vic-20.it/visible-solar-sistem-1930/
| FredPret wrote:
| Sometimes, my fellow humans come up with something so jaw-
| dropping that I'm just grateful.
| ulrischa wrote:
| Wow very cool. Is the data available via an API?
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(page generated 2023-10-23 09:01 UTC)