Starship Asterisk*

This is one of the few stereo images I've seen where the 3D effect really "pops" for me! Usually I get only a vague impression of 3D; maybe it's the relatively close vantage point from which the source images were taken.

The other end of the street... do you mean from the west-northwest (i.e., near the Hudson), looking southeast? That would let you see the sunrise, not the sunset. I'm not sure about the dates, but Nov. and Jan. sound about right.

An example of a 'Great Circle' is the Equator. This circumnavigates the globe at it's greatest dimension. An example of a lesser or small circle would be the Arctic Circle, or the Tropic of Capricorn. They also circumnavigate the globe but at a higher or lower latitude than the equator, so they are...

This movie of Jupiter looks a little odd: 1) The moons are not orbiting in great circles aroud the planet; bodies in orbit should not do that when they go around a spherical mass. (Around a cylindrical mass dressed up to look like a sphere, maybe.) They are orbiting in lesser circles at higher lati...

I was wondering about that dark spot as well. According to Sky & Telescopes Jupiter's Moons JavaScript utility (I couldn't find a simple chart like the ones that [used to?] appear in magazines) that spot was not Callisto, the only Galilean moon not accounted for (too far outside this frame). So ...

I wonder why so many photos are rotated for general audiences? In this case, the APOD shows a scene where south is up. The image under the link "summary" ( http://www.digitalsky.org.uk/occultations/20070302_occultation-summary.jpg ) shows the true orientation. Nothing is really lost in the...

I considered that (cache, cookies, some similar problem) but I have not used Internet Explorer to go to the APOD site in months (or perhaps ever on this computer) and even it gave me yesterday's page. Of course it worked correctly today (both browsers) so... never mind?

For at least two days now, when I go to the main APOD page I get yesterday's picture (& text). On Tuesday it showed Monday's, today on Wednesday it shows Tuesday's. Each time I have to click the forward arrow to go to the next day's page. This happens for me in both Firefox 2 and IE 6 for Window...

In the Moving Moons of Saturn APOD, Rhea appears to be moving in a slow, retrograde orbit. This is just an effect of the relative motion of the camera / spacecraft, right? I wonder why the Cassini imaging team didn't control the frame to keep Rhea more centered, or even give it apparent motion leftw...