Sky Patterns
Why the Moon Changes Position Against the Stars
Why the Moon changes position against the stars becomes clear when you separate its eastward orbital drift from the…
Across the subjects
All articles
Explore Stellar Bulletin's astronomy articles by subject, from reading the sky's patterns to understanding the instruments and ideas that extend our view.
Instruments
Binoculars or a Small Telescope for a First Look?
Binoculars or a small telescope: compare field of view, handling, and observing comfort to choose an instrument that…
Astronomy Past
The Star Chart Before the Smartphone
Learn how printed star charts developed before smartphones, why their makers chose particular projections and symbols…
Space Science
The Constellation Line Myth: Stars Do Not Share a Picture
Constellation lines map patterns from Earth, not nearby groups in space. Learn how to compare a familiar sky picture…
Observation
A First Evening of Looking at the Moon
A first evening of looking at the Moon needs no equipment: follow its changing shape and position to practice patient…