There are several way to enter your coordinates into Starry Night. The two most popular are discussed below.

1. (Degrees:Minutes:Seconds) 

xxd xxm xxs (N, S, E, W)

d represents degrees
m represents minutes
s represents seconds

An example would be:

Latitude: 43d 15m 15s N
Longitude: 78d 15m 15s W

2. Decimal format

xx.xxxx (N, S, E, W)

An example would be:

Latitude: 39.739 N
Longitude: 104.9840 W

A popular source of decimal format coordinates is http://heavens-above.com .

When you enter your coordinates in the Set Home Location window, Starry Night will always change your coordinates to the following format:

xx° xx.xxx'

Don't be alarmed. Although your coordinates are in a different format, they are identical to the ones you entered. Only the format as changed.

As a double check, ensure the "red x" is over your approximate location in the world map.