Free astronomy and STEM lessons: stargazing for beginners, Bortle, ISS tonight, Milky Way, and planets. Made in Guyana for Caribbean classrooms and beyond.
Teacher Page for CSEC: The five astronomy objectives of CSEC Integrated Science, each with its lesson, video and tool, and class sheets to print with real dates for Guyana. Mapped to objectives, not endorsed.
No. Start with naked-eye targets like the Moon, bright planets, and the ISS. Follow the First Night Checklist, then add binoculars or a small telescope when you are ready for deeper objects.
Check cloud cover, dew, the Moon, and dark hours first. Open Tonight Score for a Go/Maybe/Skip readout, or read Is Tonight Good for Stargazing? for the full checklist.
The Bortle scale rates night-sky darkness from 1 (excellent) to 9 (inner city). Learn the classes in What Is the Bortle Scale? and find darker sites near you with Dark Sky Finder.
Yes when a bright dusk or dawn pass is above your horizon and the sky is clear. Use the ISS Pass Predictor or Is the ISS Visible Tonight? to check timing, brightness, and max elevation.
You need a dark site, a dark Moon, Milky Way season, and clear weather. Start with How to See the Milky Way, then check season timing in the Milky Way Season Planner.
Visible planets change with rise, set, and altitude at your location. Check Planet Visibility Tonight for tonight’s windows, or study the Solar System Overview lesson.
Begin with Introduction to Astronomy for foundations, then try the First Night Checklist and the free tools linked from each lesson. Short STEM lessons cover coordinates, seasons, planets, and observing skills.
Near-equator skies show both hemispheres, a strong tropical Milky Way season, and long warm observing nights. Plan darker inland nights with Dark Skies in Guyana, image the core with Milky Way Photography from Guyana, and time the season with Milky Way Season Near the Equator.
Yes as free STEM astronomy lessons and interactive tools for middle and high school science, not an official exam syllabus. Start with the foundation track from Introduction to Astronomy onward and classroom-friendly topics like seasons, Moon phases, and planets.
Many lessons support science-fair style projects: light pollution and Bortle (Dark Skies in Guyana), solargraphy pinhole cameras (Solargraphy), and tropical Milky Way season planning (Milky Way Season Near the Equator). Pair a clear question with data from the free tools.
AstroPhotosGY is built in Guyana with free online STEM astronomy lessons, tool guides, and classroom-ready foundations for Caribbean students and teachers worldwide. Browse the Learn hub for self-paced paths. We do not claim CXC, CSEC, or Ministry accreditation.
Use Dark Skies in Guyana for coastal vs inland darkness, then Milky Way Photography from Guyana for the imaging workflow, with season context from Milky Way Season Near the Equator.
No. Weather, Tonight score, ISS passes, planet visibility, and Milky Way planners work for any lat/lon. Guyana and Caribbean lessons add local field context; magnets and tools stay worldwide.