When it comes to locating objects in the night sky, how does one convey its precise position? The sky is divided into a scattered pattern of 88 constellations of various sizes and shapes covering ...

If you think the constellation boundaries look arbitrary now, consider the situation a century ago. No official star chart existed, and those in common use not only set different boundaries for the ...

Travelers need a map when driving to unfamiliar destinations whether they’re going to the other side of town or across the country. The map is a model of the real world and knowing how to navigate ...

The earliest astronomers were careful observers of patterns.

Our Galaxy's gravitational field limits the accuracy of astrometric observations of distant objects. This is most clearly appeared for objects that are visually located behind the central regions of ...