Finding Your Way with Maps and GPS - Running Android: Using Your Phone and Tablet for Work and Play - page 148

Detailed topographic map in Backcountry Navigator Pro
Other Maps
Google Earth
The Google Earth app ( http://bit.ly/1eox7GN ) is pre-installed on Android. It gives you ac-
cess to the worldwide satellite and street view imagery that has made Google Earth such a
useful tool. You can also access it from the menu in Google Maps.
Navigation in the Android app is even easier than in the desktop app. Swipe any direction
to pan the image, and rotate the image with two fingers. Pinch zooming works as expected
to zoom in and out. The only action that is not obvious is tilting the view- do this by placing
two fingers side by side and moving them up or down.
Tapping the N icon reorients the image to north up and removes any tilt, and tapping the
Center icon centers the image on your present location. From the Menu icon you can share
the image, access settings, leave feedback, get help, and view a brief tutorial. You can
search for a place by tapping the search icon at the top of the screen.
Tap the Menu icon at the upper left corner to slide out the Layers and Map selections.
Sky Map
Looking in the other direction, Google Sky Map ( http://bit.ly/HC9dK1 ) puts a planetarium
on your phone or tablet.
When first opened, Sky Map uses the tablet's sensor to automatically show the part of the
sky you're looking at as you hold the tablet up. You can switch to manual mode by tapping
the screen to bring up the control icons, then tapping the mode toggle icon at the lower left
corner.
In manual mode, drag to pan the map and pinch-zoom to move in and out. You can rotate
the view with two fingers.
Icons on the left side of the screen let you toggle various sky objects on and off. From top
to bottom they are- stars, constellations, Messier objects, planets, and meteor showers. The
last two icons toggle the right ascension/declination grid and the horizon line and nadir/
zenith markers.