Lambda Tauri is an interesting variable which can be studied over the course of several nights.

The star is an eclipsing binary in which the companion partially eclipses the primary every four days (more precisely three days 23 hours). This means that once you establish the maximum, it will last another two nights before it begins to dim. Then it remains at the minimum very briefly, just one evening, before beginning to brighten again.

The maximum is about 3.4 while the minimum is 4.2.

To find lambda start at Aldebaran. Move thirty-five arc-minutes to the west and four degrees south: binoculars.

To gauge the visual magnitude of lambda, compare with nearby gamma (3.65) to the northeast about half way to Aldebaran, and xi (3.73) to the southwest the same apparent distance as Aldebaran.