Gnomon
12 screens · Astronomy and stargazingA sky app that answers whether it is worth going outside
Twelve screens of a stargazing app built around the question a sky chart never answers, which is whether tonight is actually worth the cold, with every altitude, rise and set time, moon phase, brightness ratio, magnification, true field and exit pupil on every screen computed from one sky and one set of optics rather than asserted beside them.
The design system and all 12 screens in one prompt. Each screen is also on its own page, free, if you only want one.
Design system
One file, shipped with the set. Every screen declares these values inline so it can be lifted out on its own, and the build refuses a screen that paints a colour this file does not name.
Colours
Scales
The flow
In the order somebody meets them. This is the app's own sequence, not a list of categories.
Tonight
4What is above the horizon right now. The sky drawn as it actually stands, one object opened to its whole night, and a moon thin enough to be out of the way.
Planning
4Whether to bother, and what to point at. Cloud and seeing by the hour, the events worth setting an alarm for, and a list filtered by what your sky can actually reach.
The record
4What you saw and what you saw it with. Sessions logged with their conditions, and an eyepiece case where every figure is the optics rather than the marketing.
