Star Walk 2 — Night Sky Guide $0.99 (normally $3.99) via Google Play

Down from $3.99 to $0.99 for a limited time, via Google Play. Average rating of 4.3 from nearly 4000 votes.

Star Walk 2 is an exquisite stargazing guide that combines astronomical data with premium technology to deliver an effortless journey through thousands of stars, comets, constellations, satellites, dwarf planets, moons, meteor showers, asteroids, deep sky objects, nebulae and galaxies. All you have to do is point your device at the sky and the star map will get aligned with what you have in the night sky above you.

Incredible 3D models of celestial bodies:
- Planetary nebulae
- Constellations
- Dwarf planets, comets, and asteroids
- Man-made satellites
- Layer by layer planets and missions

DISCOVER NEW DEPTHS
Star Walk 2 is the first astronomy guide to introduce plausible three-dimensional models of planetary nebulae. Star groupings of the 88 officially recognized constellations are also presented in volume. You can see them as separate entities, turn them around and take a look from the other side. Complemented by articles on connected myths and history, this is the most comprehensive collection of information on constellations.

REAL-TIME MOTION TRACKING
As you hold your phone up and point your phone towards the sky, Star Walk 2 follows your motions using the built-in digital compass to match the map on your screen to the stars seen from your location. Easily find any star, constellation, or satellite in the sky by tapping Search. Star Walk will guide you by indicating the direction to look at.

NOW AND LATER
Star Walk 2 gives you accurate daily data on current moon phase, time of sunset and sunrise, and elevation of planets. With just one slide you can see how the sky will look later tonight or throughout the year.

PRO STARGAZING GUIDE
Special night-time soft red mode will help you preserve night vision when stargazing with a telescope. You can see the sky in X-Ray (and 5 more filters) to study the invisible structure of the universe. Live tracking for over 8,000 satellites will help you catch iridium flares.

Main features:
Point your device to the sky and see all celestial objects (stars, constellations, comets, satellites, ISS, asteroids, meteor showers, iridium flare) tagged with names. Scan across the sky, locate planets of solar system, discover distant galaxies, and witness satellite fly-bys.

Preserve your night vision with Night Mode feature
Follow the trajectory of any celestial object to view it’s exact location in the sky on any date and time.

Use Time Machine to jump to the future or the past and see the sky on different dates and times.
Share your stargazing experience with friends and family on social networks.

Things to view:

Stars: Sirius, Canopus, Alpha Centauri, Arcturus, Vega, Capella, Rigel, Spica, Castor.

Planets: Sun, Mercury,Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto.

Moons: Phobos, Deimos, Callisto, Ganymede, Europa, Io, Hyperion, Iapetus, Titan, Rhea, Dione, Tethys.

Dwarf planets and asteroids: Ceres, Makemake, Haumea, Sedna, Eris, Eros

Comets: Hale-Bopp, Borrelly, Halley’s Comet, Ikeya-Zhang

Track meteor showers: Perseids, Lyrids, Aquarids, Geminids, Ursids, etc.

Constellations: Andromeda, Aquarius, Aries, Cancer, Capricornus, Cassiopeia, Leo, Libra, Pisces, Sagittarius, Scorpius, Ursa Major, etc.

Man-made missions & satellites: Curiosity, Luna 17, Apollo 11, Apollo 17, SEASAT, ERBS, ISS.