The sky at night, viewed through clouds, trees and city lights. The sky at day, viewed through snowflakes and coats of gray.
A 25 meg download, Stellarium is free open source planetarium software. It shows a realistic sky in 3D - what you see with the naked eye, binoculars or a telescope - when it sets itself to your computer time and date. It can also be used in planetarium projectors.
Watch the sky at any longitude and latitude you wish while the stars, planets and nebula advance in real time. The click of a button produces constellation lines and/or art plus many other options. The initial program provides four landscapes but a dedicated digital illustrator can insert her own backyard as the viewing ground.
This awesome program will tide me over until the sky turns clear and the air warms enough to venture outdoors with Stellarium to identify those objects seen overhead.