At this time the Moon will be more than 30,000 miles closer than its furthest point (its apogee) and it will appear almost 14% bigger in the sky – perfect timing for the lunar eclipse.
The chaff released at the apogee point of the rocket trajectory is tracked by the ground-based radar to measure the wind velocity in the mesosphere and stratosphere as it descends with time.
Figure 3 shows, for example, diurnal and seasonal dependencies of four model parameters: minimum range, skip distance, elevation angle, and ratio between the total range to ground scatter and the range to the ionospheric reflection point (the ray trajectory apogee).
The failure of the test and the spacecraft's consequently reduced velocity raised the spacecraft's apogee (the point in its orbit farthest away from Earth) from 71,623km to just 78,276km - about 25% of the way to the target of 100,000km.
If the moon is also close to apogee,the point that marks its farthest distance from the Earth, it will not completely cover the sun, and we get an annular eclipse.
Spikes of wheat cultivar Apogee were point inoculated with F. graminearum and then treated with either L-homoserine (LHS) D-homoserine (DHS) or water for 7 days.
With good reason, to be sure, since national fragmentation reached its apogee at this point in the war.
Such stars could be discovered using ongoing galactic-archaeology surveys such as the Apache Point Observatory Galactic Evolution Experiment (APOGEE) in New Mexico.
This means there's a fairly large difference between the perigee (when the Moon is at the closest point in its orbit) and apogee (when the Moon is at its farthest).
where n is the number of years between apogee and the point where the rate approaches zero.
