The phrase "amount of sky" is correct and usable in written English.
It can be used when discussing the extent or quantity of sky visible in a particular context, such as in descriptions of landscapes or weather.
Example: "As the sun set, the amount of sky visible turned a brilliant shade of orange and pink."
Alternatives: "extent of sky" or "quantity of sky".
An overwhelming amount of sky.
"One of the best things again about the neighborhood is not the buildings, it's the vast amount of sky," Mr. McNally said.
Here is where another decision is made: "Is interest greatest below the horizon line, or above the horizon line?" Increasing the amount of sky is an improvement — the photo now conforms to the rule of thirds — but Mr. Peterson isn't finished.
Early researchers also knew that there is an inverse relationship between insolation and the amount of sky covered by clouds (Kimball 1919).
The nucleus of the comet is only about 5 kilometers across which, at the time the image was taken, covered the same amount of sky that a dime would at a distance of 300 kilometers.
Gareth Duggan When football streams are so accessible these days it's hard to justify paying the ridiculous amount of money Sky charge.
Since the detectors are composed of many PMTs and each PMT detects fluorescence photons together with the vast amount of night sky background, a sophisticated triggering system is required.
Then again, under the weight of sufficient problems (romantic or professional confusions, for example), no amount of blue sky, and not even the greatest kitchen, will be able to make us smile.
I will watch eagerly to see the amount of blue sky that actually appears over the next 16 days, because the Chinese have promised good weather, and I have full confidence in the Chinese since pretty much everything I own at this point is either made by the Chinese or will be in the near future.
