Live observing guide
Saturn looks star-like to the naked eye, but even a small telescope can reveal its rings when conditions are steady.
BEYOND TONIGHT'S VIEW
Know this planet
- A year
- 10,747 days
- One orbit around the Sun · Earth days
- One rotation
- 10.7 hours
- Relative to the stars, not sunrise to sunrise
- Diameter
- 120,536 km
- Measured across the equator
- Mass
- 5.68 × 1026 kg
- Total mass of the planet
- Mean temperature
- -140 °C
- At 1 bar in the atmosphere; no solid surface
- Known moons
- 293
- Confirmed natural satellites
- Distance from Sun
- 1,432 million km
- Average distance along its orbit
- Gravity
- 9 m/s²
- Effective gravity at the 1-bar equator
- Mean density
- 687 kg/m³
- Mass divided by volume
- Ring system
- Yes
- Visible with a small telescope in steady conditions
Rounded values. Moon counts checked on ; new discoveries can change the totals.
A first unforgettable telescope view and tracking Titan
- The ring system separated from the planet
- Titan, its brightest moon
- A soft golden color and subtle atmospheric banding
Observing tips
What you can really see
Saturn is star-like to the naked eye. A small telescope can separate the rings from the planet in steady conditions.
The rings' apparent tilt changes; sometimes they look like a very thin line, not the broad oval in photos.
Before you leave
- Set the telescope on a steady mount and give it time to adjust to the outdoor temperature.
- Choose the listed best time, when the planet is higher; avoid looking across warm roofs.
How to observe
- Centre Saturn at low power before increasing magnification.
- Watch the space beside the disc for the ring shape during the steadiest moments.
- Stop increasing power when the image loses contrast; a smaller sharp view is more useful.