Gamma Andromedae, Almach, is one of the finest binary systems in the heavens, best seen in small telescopes or even binoculars: a triple system in which its brightest components (visual magnitudes 2.3 and 5.5) form a lovely colour contrast of yellow and blue.

The blue companion also has its own orbiting companion, which orbits the blue primary every 61.1 years. This companion is also blue (visual magnitude 6.3).
    You will need a rather larger telescope to resolve these two, which are only about 0.4" apart. And as seen from the earth the component is gradually approaching the primary. The orbit of this elusive companion is reproduced on the Constellations Web Page: gamma.

Gamma Andromedae is easiest found with the naked eye as the third of the four stars which wrap themselves around Cassiopeia. Review Alpha Andromedae if you have trouble finding Almach.

The binocular view includes a fine star cluster south of gamma, NGC 752.

In the same field of view is upsilon Andromedae which has recently been in the news as being the first discovered ‘solar system’ with three planets.
     The planets orbit at distances of 0.05 AU, 0.83 AU and 2.5 AU. An AU (‘astronomical unit’) is the distance of the Earth to the Sun; thus the middle planet with an orbiting distance of .83 AU is similar to the earth's. This middle planet orbits at about 230 or more days and has a mass of about twice that of Jupiter. The other planets have masses of 0.7 of Jupiter and 4 Jupiters respectively.
     As for the ‘sun’ of this system--upsilon Andromedae--it's about the same size as our Sun and is 44 light years away.