An application on the app store called “Sky Guide: View Stars Night or Day” allows its users to “study thousands of stars, comets, and satellites” (according to the App Store). Created by Fifth Star Labs LLC, the app turns the iPhone into a telescope of sorts, highlighting interesting constellations, planets, and stars. The application also gives notifications when satellites pass overhead. Clicking on a constellation, planet, or star, will give information on rise and set times, magnitude, declination and azimuth. One of the most striking features of this app is that it allows the user to explore the sky both at night and during the day. The user sees the current patch of sky through his or her phone screen in real time and can even look into future and past dates; this is a useful tool for, say, moon-watchers that need to know at what time the moon will be at its peak on some future date. The application features a beautiful design and calming music to accentuate the sky-exploring experience.