Eclipses are when a planet gets in between the earth and another object. The light of the other object, usually either the sun or the moon, is blocked by the planet. In a lunar eclipse, the moon is being blocked by another planet. In a solar eclipse, the sun is being blocked. A special kind of eclipse, a penumbral eclipse, where only part of the Sun is covered by an opaque body. 

       Some of the more recent lunar eclipses involving the planet Saturn:

• 7-17-81 Partial Lunar Eclipse
  A partial lunar eclipse is when the moon is partially blocked by Saturn.
• 7-6-82 Total Lunar Eclipse
  A total lunar eclipse is when the moon is completely blocked by Saturn. This was observed on this date.
• 11-18-94 Penumbral Eclipse
  A penumbral eclipse occurred.
• 9-27-96 Total Eclipse
  The total eclipse occurred at about 8pm PST.
• 3-24-97 Partial Eclipse
  The moon was at a mid-eclipse at about 8:40pm PST and at about 9:00pm PST. This was observed on the same day that the Hale-Bopp comet was in the western sky.

The 120 second exposure with 0.8 arcsecond seeing was taken in the 890 nm methane band using a narrow filter (5.0 nm FWHM). The exposure was begun at about 4:06 Universal Time (UT) on November 22 (9:06 p.m. MST, November 21). A central mask about 25 arcseconds wide is used to reduce the scattered light from the disk of Saturn. North is to the top, and East is to the left. The Sun is on the opposite side of the rings from the Earth, and so the rings are a 'negative' image of their usual appearance. The C Ring and Cassini's Division are bright while the A and B Rings are dark. This image clearly shows the small Saturnian moons Epimetheus (top of the East ansa, moving East), Prometheus (bottom of the East ansa, moving West), and Janus (bottom of the West ansa, moving West). This image confirms the suggestion from HST observations that Prometheus is about 30 minutes behind the position predicted on the basis of the pre-1995 ephemeris. Quoted from NASA/JPL.