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I never thought Orbiter would run well in Wine, it's not precisely the most lightweight application out there! Will give that a try :cheers:

Hello, I haven't been to this forum in a long while... (part of the reason is I'm a Linux-only-user now :(). I'd like to ask for recommendations about space explication history books. I want to share it with a 3yo, who can't have enough shuttle launch clips. So I'm after something with a focus...

Sorry for not answering, I've been away from this forum for quite a while. I'm glad you found the kernels, and hope you could try trajectories. By the way, I retook the development of this tool this year. I'm rewriting the GUI and refactoring the backend code to make it more flexible...

Thank you for your advices. Should have answered before but I've been busy (on the good side, I became uncle :)). Eventually I came back to this telescoping thing, and combined agentgonzo's and Yoda's recommendations: I went for the Meade Lightbridge 10''. I paid quite a bit more, but being...

Thank you for your advice:). I emailed the shop, and they say that the telescope was taken to an exposition, but eventually they didn't even mount the thing, and insist that it's in mint condition. The shop is pretty far away from my city, but I'm inclined to believe them (there's 2 years...

Hi all, Just wanted to ask about a price for a telescope. Maybe this post seems silly, I'm just in "too-excited-to-act" mode. I'm thinking of getting a dobson, after playing with a department store for a while and having a lot of fun with it. I found this page which offers a SkyWatcher Dobson...

Hi, as a kid I half-watched a movie my parents had borrow in VHS. This had to be between 1985 and 1990 I reckon. It as a sci-fi movie about a ship, space, and an alien with white/translucid tentacles, which killed part of the crew before befriending the rest and helping fix the ship. I only...

Coming back to this, after a long time I found the same problem in my friend's computer. It was solved by updating the graphic card drivers. Updating them should be harmless anyway or even good, so if anyone checks that Trajectories works with updated drivers it'd be very helpful. Don't have...

So they really avoid winter landings :). In contrast with Shuttle, Soyuz from ISS have always landed between mid March and 1st December [wikipedia]. Or is it for other reasons? On the other hand, Soyuz visiting MIR did land in February and January [wikipedia].

I get it :). Anyway, about the climate, the Spaceflight Now article says the second Soyuz docked to the ISS will be good until December/January. However, they prefer to use the November reentry window to avoid having to look for the landed capsule in the middle of a winter storm at night. Just...

Warning: potentially silly questions ahead: I don't understand this :). Are these safety concerns aggravated by resupply problems? Also, independently of the supplies, if the only way back to Earth from ISS is unsafe (how much?), shouldn't ISS be left unmanned anyway in Winter? And another...

Ah, you should see the sharp images produced by aluminium foil (bright side!) mirrors :P.

I built a paper hubble, I think it looks very nice in spite of a couple of mistakes on my part. And you're right about paper... my hubble has already needed some 4 "service missions" after completed :lol:. I'd love to find a detailed JWST paper model (I don't have the skills to design it...)

In the case the Moon were in retrograde orbit, in the process of Earth-Moon locking, would the Earth's rotation be null for some time? That'd be tough. In this case, when the Earth's rotation is aproximately null, I can imagine the effect of Sun-Earth tidal locking would be very strong. I guess...

Yes, I meant just moons, natural satellites :S. The thing is I found the VSOP87 data and code for the planets, but not the moons. And then I saw the ELP82 file for the Moon in the Orbiter distribution, and references to GALSAT ephemerids (couldn't find the data source for Mars moons though)...

Hi, I'd like to ask for a recommendation for a open source c/c++ implementation of VSOP87 (preferably cartesian coordinates relative to solar system barycenter), that computes the position of planet satellites as well. I've found the one of Stellarium, but I thought there might a specific...

Ops, that's right, I had calculated SSME losses as % of off-axis thrust with respect to total SSME thrust. This doesn't work, but using % of on-axis thrust has the same problem. Could it make more sense to compare kinetic energy? Actually (off-axis Ek) + (on-axis Ek) = (total Ek), right? In...

I think you're right about the thrust and exhaust directions, that's a very good point!! The cspice vector (x y z) represents the direction the ship should accelerate. After some time fighting with dimensions and space, I see that converting it to an orbiter vector (-x -z y) means that this new...

Yes, I knew there had to be good reasons for the shuttle's configuration :). That's interesting, the shifting in the CoG. Ah, and I finally got that the fuel mass dedicated to control losses cannot be simply replaced with payload (took me a while) :D. That makes me think, is the shuttle...

Ah, I hadn't considered the AOA (and wings, right?)! Are they the reason for the angle? I had thought that a different configuration (SSME total thrust, SRBs, and center of mass in the same plane) should allow using all the thrust to push the shuttle without making any torque :). Thank you for...