Instead of offering everything for a flat rate, every additional feature is offered at anywhere from $2.99 to $9.99.
Star Chart lets users see the sky as it was 10,000 years ago, or as it will be in 10,000 years. It also lets people see what the sky would look like from a different place on earth .
Star Chart comes with the Messier Deep Sky catalog which contains information about galaxies, nebulas, and star clusters.
The screen on Star Chart is fixed with no way to zoom.
2016 and 2017 are not in data base. Can't view anything discovered after 2015. Comets like johnson can't be found.
Instead of only displaying what would be visible to the human eye, Star Walk displays gamma ray, x ray, h-alpha, infrared, microwave, and radio.
Just tap on a star and see what it looks like from a closer perspective.
For 99 cents, satellites can be tapped for identification. This app contains information on over 9000 satellites.
Users can toggle which features are activated, such as constellation description or satellite display.
Star Walk 2 attempts to give users a comprehensive view of all the things that are currently happening in space, this includes events at other planets. For instance, it displays the angle of rotation around the sun, sunrise, sunset, and length of day on that particular planet.
Instead of just displaying a feed of what the sky should look like when the device is aimed in different directions, Sky Walk paints stars, constellations, and satellites over real time images taken from the device's camera.
Many people who have this app complain that it crashes within seconds of starting.
You can use this app to learn more about the upcoming solar eclipse.
It is a world-clock and an entertaining educational tool. Learn about the sky, how it seems to rotate around us and how the sun, moon and planets move over time.
This app provides an interactive 3D experience within the field of astronomy.
Sky Map won't work without GPS.
For users who are looking for a particular planet, star, or constellation, all other listings in the app can be disabled except for the target.
When the phone is aimed at a certain star, the name of the star (or stars) will come up on the screen. This app lists names of stars, constellations, and planets.
Depending on the environment, Sky Map can be hard to use because of the app's controls and the current visibility.
Many stargazing apps let users point their device in the direction of a certain star or celestial body, but this app is better used as an informational accessory to the others.
Has over 14,000 images with more added regularly. In addition to images, this app also offers articles videos, TV feeds, and radio in order for users to get the most out of their viewing experience.
The Missions calendar lets people see launch schedules and viewing opportunities based on current location.
The NASA app has tons of information, most of which is updated constantly.
The app provides a lot of information on the latest space exploration missions.
Users can view asteroids, satellites, comets, and meteor showers with information included.
Objects can be found according to name, magnitude, number, Ra, and other attributes.
The app has historical mythological and scientific information on hundreds of objects. Over 120,000 stars can be viewed, near star clusters, nebulas, galaxies, and major planets and moons in our solar system.
The app is capable of simulating movement up 100 years in the future and past.
SkyWeek, Sky & Telescope's subscription inform of upcoming eclipses and meteor showers.
Events such as eclipses, meteor showers conjunctions and transits can be animated.
There's a lot of information and functionality in this app that might be a bit too much for a beginner astronomy enthusiast.
Instead of looking from earth to the stars, users can see their location on earth (satellites included) from the stars.
Many users have trouble getting the settings menu to open, and when it does, barely any of the settings can be adjusted, most notably the sound setting.
There is an eyeball button that will turn the screen red when it is clicked. The red screen will reduce the amount of time that it takes for eyes to readjust to the darkness.
While exploring the night sky, this app has a feature that will let the user zoom in for a better view.