Step 01
Constellations Without a Telescope
Dark adaptation, star-hopping, seasonal signposts and the faint smudge of the Andromeda Galaxy.
Read the step →
An astronomy primer in seven steps
The Sky Is a Map. Learn to Read It.
Start with your own eyes. Add glass. Meet the planets. Follow the spacecraft. Every step on this site builds on the one before it, so nothing arrives before you are ready for it.
Naked eye
Look Up Tonight
You need no equipment to start. Step outside, turn off your phone screen, and give your eyes twenty minutes. Your pupils widen, your retina adjusts, and stars you could not see at first quietly switch on.
Find the Plough, follow its two pointer stars to Polaris, and you have just located north without a compass. That one trick unlocks the whole northern sky. South of the equator, the Southern Cross does the same job.
Open Step 01
Optics
Choose Your Glass
Aperture, not magnification, decides what you see. A pair of 10x50 binoculars shows Jupiter's moons and the craters of the Moon. An eight-inch Dobsonian reveals Saturn's rings, globular clusters and faint galaxies.
We compare binoculars, refractors, reflectors and catadioptric scopes side by side, with honest notes on weight, setup time and price.
Open Step 02Step 02
Binoculars, Refractors and Dobsonians
Includes a full telescope comparison table and a buying sequence that saves money.
See the table →Worlds
Our Neighbourhood of Worlds
Eight planets, five recognised dwarf planets, hundreds of moons and millions of small bodies orbit one ordinary star. Here are three to start with.
Planet
Saturn
Rings made mostly of water ice, visible in a small telescope at around 25x magnification.
Meet the giants →Planet
Jupiter
The largest planet. Its four big moons, found by Galileo in 1610, line up nightly in binoculars.
Read more →Moon
The Moon
Best viewed near the terminator, where low sunlight throws crater walls into sharp shadow.
Moons worth knowing →Exploration
Missions That Went Further
In under seven decades, spacecraft went from a beeping sphere in low orbit to a gold-mirrored observatory 1.5 million kilometres from Earth.
- Sputnik 1 becomes the first artificial satellite.
- Apollo 11 lands two astronauts on the Moon.
- Voyager 1 launches; it is now in interstellar space.
- Hubble reaches orbit aboard Space Shuttle Discovery.
- James Webb Space Telescope launches from Kourou.
Mission
From Sputnik to the Space Telescopes
The full timeline, plus how spacecraft actually travel: transfer orbits and gravity assists.
Open Step 04 →Entities
Observatories, Agencies, Books
The names you will meet again and again, and why each one matters to a beginner.
Agency
NASA and ESA
NASA was founded in 1958, ESA in 1975. Together they run Hubble and Webb and publish free imagery.
Who runs what →Observatory
Paranal and Mauna Kea
ESO's Very Large Telescope in Chile's Atacama and the summit domes of Hawaii sit above most of the atmosphere's turbulence.
Why altitude helps →Book
Turn Left at Orion
Guy Consolmagno and Dan M. Davis's classic shows what objects really look like in a small scope. Pair it with Terence Dickinson's NightWatch.
Our reading list →FAQ
All stargazing questions
Asked Under the Stars
Do I need a telescope to start?
No. Learn the constellations by eye first, then add binoculars. Many experienced observers say a telescope bought too early ends up in a cupboard.
Why does that bright "star" not twinkle?
It is probably a planet. Planets show a tiny disc rather than a point, so atmospheric turbulence averages out and their light looks steady.
Can I see the International Space Station?
Yes. It looks like a bright, steady light crossing the sky in a few minutes, usually shortly after sunset or before sunrise. NASA's Spot the Station service lists passes.
Contact
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