Preference varies among observers, so it is suggested that if you are already utilizing one of these systems, you should stick with it, at least in the short term. The exact size and power of eyepieces you will need depends on the size and type of telescope you use. It is recommended that you have 2 or 3 eyepieces. Other eyepieces should be of higher power for viewing fainter stars. Mount Either equatorial or alt-azimuth mounts can be used successfully in variable star observing.
Stability is important to prevent jittery star images, and smooth movements help in star-hopping.
A drive system can be helpful when high magnification is used, but many observers make do without one. Atlas A star atlas or small scale sky chart will help greatly with learning the constellations and finding the general region of the sky in which a variable can be found. In addition, there are several other atlases to choose from, based on your own needs and preferences. Many of these are listed in Appendix 3 under Reading Materials. A set of charts recommended for use by beginner variable star observers is included with the new member package or available upon request.