Iss Definition and 65 Threads

http://eol.jsc.nasa.gov/Videos/CrewEarthObservationsVideos/ I saw one of these videos and they seem pretty badass. However, I was wondering, does anyone have any idea of what kind of exposure you need for those kinda videos? I'd be speechless if the exposures were the usual fraction of a...

Hi All, I have a photo of the ISS and i wanted to calculate its absolute magnitude and compare it to the predicted mag when the photo was taken I've found the pixel value for a point on ISS and i have also found the pixel value for an identified star in the background. How would I...

On the NASA website it says that I need to consider the following: "MAX ELEV - APPROACH - DEPARTURE" 86 20 above W 26 above E Could someone tell me what these mean and how I'd...

My son asked me if the moon is always full as seen from orbit. I think it is apreciably the same. E.g at new moon, the astronauts wouldn't see the moon. Is that true?

I recently read that the STS orbiters have up to 300 m/s of delta-V available considering the weight of the orbiter and the quantity of propellant in the OMS. I also recall that leaving orbit requires some 100-150 m/s of delta-V depending on altitude. If deorbiting takes 100-150 m/s, then is...

Top of the day to ya, I monitor the development of the International Space Station and I have some idea of what the daily routine of the crew looks like but I am missing a cruical piece of information which seems to be never mentioned. What exactly are the astronauts doing up there? What do...

If we launch a satellite to a circular orbit around the Earth at height 357.1 km, to find the velocity needed at launch, do we just set the energies equal?: - \frac {\mu}{2\left(r_E + h\right)} = \frac {v_L^2}{2} - \frac {\mu}{r_E} and then solve for v_L? \mu = GM, where M is the mass of the...

http://heavens-above.com/PassSummary.aspx?satid=33442&lat=0&lng=0&loc=Unspecified&alt=0&tz=CET It is losing height quite rapidly now, more than a kilometer per day.

I observed the ISS when it was almost overhead and well inside Earth's shadow with binoculars. The brightness was perhaps magnitude 8 or so, I'm not sure. I observed the ISS enter the Earth's shadow when it was at 60 degrees over the horizon, the brightness declined rapidly as it entered the...

Story on the BBC about a urine recycling system for the ISS - it doesn't have a lot of tech details but a few points seemed odd. It uses distilation which means it needs a centrifuge to simulate gravity. A hand powered reverse osmosis pump on a lifeboat can take water from seawater - wouldn't...

how come when NASA speaks of the either the space shuttle or the ISS, they speak as if they have left the effects of Earth's gravity? This is not true. The people in the ISS are falling toward Earth at the same speed as the craft around them. When they start their decent back to Earth they...

The first automated rendezvous of a non-Russian vehicle with the ISS will be taking place shortly. The Jules Verne ATV is scheduled to dock at 14:40 UT. Coverage on NASA TV starts at 14:00 UT. ATV passed demo days #1 and #2 with flying colors, which enabled the controllers to give a go for...

Eventually ISS will re-enter the Earth's atmosphere and burn up, I assume. I recall that back in 1979 Skylab fell back to Earth and showered debris over a large area. It's never too early to plan ahead... Any thoughts on when ISS will come down and how it will be handled? This question...

I was wondering about this yesterday. Granted, it would not be as good as the other ones currently in operation (less ability to aim, glare from the ISS, etc.), but it seems like it would be a relatively easy add-on (the platform, launch vehicles, and maintenance crew are already in place) to...

This is for a story plot. Suppose for a moment that you actually had a way of boosting a slug of metal, say around the mass of your average bus, all the way up to 2/3c, and send it heading for Earth. 1) Would there be any way at all of detecting the "incoming round"? Even if this thing was...