2 ms·
No, the comet is spinning. That is what happened between the first and the second landing sites.
by theoh 12y ago
No, the comet is spinning. That is what happened between the first and the second landing sites.
- ajuc 12y agoI thought that too, but then they wouldn't be able to target the first spot so perfectly if they haven't considered that. And assuming 12h day the rotation should be around 2 pi R / 12 h ~= 2 km /h assuming R=4 km. That would result in much bigger velocity than 0.5 km/h when bouncing, and would exceed escape velocity 2 times, just from horizontal part of velocity). So I doubt it's so simple.