Cosmoza — Beginner Stargazing Guide | cosmoza.xyz
Three tiers of equipment — the naked eye, 7×50 binoculars, and a 70 mm refractor — cover most beginner targets.
The naked eye is the first instrument every observer owns. The Moon's phase, the fuzzy patch of the Orion Nebula (M42), and the elongated smudge of the Andromeda Galaxy (M31) are all visible without any optical aid. The Bortle class of your sky determines how much you see: class 1 is an excellent dark site, class 9 is an inner-city sky.
A 7×50 binocular gives 7× magnification through 50 mm objective lenses. It is a classic beginner instrument for sky scanning. The Moon's dark plains (maria) and large craters become clearly visible, and the wide field of view makes it easy to sweep across constellations.
On narrow screens, swipe or scroll the plate sideways.
A small 70 mm aperture refractor is the next step. Its larger aperture gathers more light and resolves finer detail. Through it you can already see the four Galilean moons of Jupiter — Io, Europa, Ganymede, and Callisto — and the rings of Saturn.
Magnification in a telescope is its focal length divided by the eyepiece focal length, both in millimetres. This means one telescope can deliver different magnifications depending on the eyepiece. Binoculars, by contrast, have a fixed magnification — 7× in the case of a 7×50.
The table below compares the three tiers by aperture, magnification, and what each shows. Start with whichever tier matches your budget and curiosity; you can always add the next instrument later.
Further reading