2 ms·
I may be wrong here, but they could be the observations blocked by the Sun, with that arc being the Sun's track on a sky.
by stargazer-3 13y ago
I may be wrong here, but they could be the observations blocked by the Sun, with that arc being the Sun's track on a sky.
- stargazer-3 13y agoI'll add up to my comment: the other wavelengths have the arc shifted, which would mean that the observation is performed from a different location or (more likely) at a different time of the year.