Eclipses generally don't happen in very convenient places either.
If one wants to repeat the observations one must transport the relevant equipment to the site of the next appropriate eclipse and then hope the day of it's not cloudy.
Additionally, as totality approaches a given location, there is a cooling effect as the shadow of the moon blocks the suns heat. There can be atmospheric turbulence effects that can make discerning the precise images on the photographs more difficult.
Another factor with modern imaging devices, you will need a wide field of view (several degrees) and a high pixel count to accurately record deflections in the arc-second range. It takes a whole bunch of pixels to do this.
If one wants to repeat the observations one must transport the relevant equipment to the site of the next appropriate eclipse and then hope the day of it's not cloudy.
Additionally, as totality approaches a given location, there is a cooling effect as the shadow of the moon blocks the suns heat. There can be atmospheric turbulence effects that can make discerning the precise images on the photographs more difficult.
Another factor with modern imaging devices, you will need a wide field of view (several degrees) and a high pixel count to accurately record deflections in the arc-second range. It takes a whole bunch of pixels to do this.
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