Star Tracker HD - Explore the Universe in your pocket

--- Top 1 Education app in 34 countries and Top 10 Education app in 79 countries when FREE! Thank you all my dear users, please leave a review or rating if you love this application! ---
--- Video on YouTube: tiny.cc/starvideo ---
--- Build-in gyroscope/digital compass enabled! Enjoy stunning graphics at 60 fps!

It's so excited to introduce you the best star gazing app on iOS! This app has a super reaction speed and high accuracy, you must try it out and see how fast it is ;)

Just hold up and point the device at the sky to see what stars, constellations and deep sky objects you are looking at in realtime. Full utilization of the build-in gyroscope, digital compass and accelerometer drive the best user experience.

Here is what our user said:
"Best star gazing app I've ever used. Very well put together and great visuals!!! From end to end this app is a must-have for anyone interested in astronomy!!"

"This app is a marvel of technology, art, and science. Super smooth operation, great graphics and a great merging of the devices capabilities. Having grown up using star charts and compasses, this app feels like science fiction come to life. Great job!"

"Looking at the sky was never this incredible!"

"If you download only one app, make sure it's this one!! This is one of the best apps I've ever seen, period! Its quality is unmatched among star gazing apps!"

Features:
• Augmented Reality Star Gazing with gyroscope! Just hold up the device.
• Sun, Moon, planets and 8000+ stars visible to the naked eyes.
• 88 Constellations & 100+ deep sky objects with magnificent graphics.
• All data is offline!
• Search and Lock the objects in Solar system, 12 Zodiac Constellations, 88 Constellations, Deep Sky Objects and Famous Stars.
• 3D compass in AR mode, indicate position of objects your searched.
• Location auto set by GPS, or set manually.
• Time Machine. Time and date can be adjusted smoothly.
• Capture a screenshot and share with your friends on Facebook, Twitter or save to Photos. (Only share to Twitter on iOS5)
• Smooth motion flow and quick response which is realized by cutting edge signal processing technique.
• Superb high quality graphic display by enabling the retina display of the device and the full screen anti-aliasing technology employment.

Usage:
• Buttom Right: Hide/Show Main Setting Menu, settings for name display, constellation, deep sky object, night mode, star amount and grid mode.
• Top Right: Search Menu (Solar system, 12 Zodiac and 88 Constellations, Deep Sky Object and Famous Stars)
• Top Left: Location Menu, choose location from a world map.
• Top bar: Time Machine Menu, adjust any time/date.
• Buttom Left: AR Compass indicator in AR track mode, pan the screen to enter un-track mode and click track button to back.

Tips:
• When search any object under un-track mode, it will be locked at the center of the screen, then user can adjust time/date to see changes of the related sky.
• When under un-track mode, just lift up the screen and point it to the sky to enter AR track mode.