Yep, thats why I first got into it. If one looks at an astronomical map, that area of the sky is very interesting around the Gemini Cancer cusp. Some areas of the ecliptic seem a vast desert (asterism wise) ... there are a few other constellations close by ; Auriga, Orion, etc.
A common misperceptions is that planets follow the line of the ecliptic - they dont. That line is a mean path plotted from the position of eclipses - the planets move in a wave form (as plotted on a star map) defined by the band of the ecliptic and in some cases can cross into constellations not on the ecliptic. In some cases an influence from a significant star may be considered as it is on the same latitude (edit ... longitude I mean ... well ,,, Right Ascension then) as a planet or the Sun.
Modern astrologers have called me nuts and say that's crazy but ....
eg. " The last star in the Great Bear. Benetnash (Alkaid) means 'hired mourners'. If the influence of this star is exercised, an influence of a Mars-Uranus-Saturn nature is present. Experience has shown that many human lives are to be mourned. Reinhold Ebertin made a survey of this fixed star covering centuries when associated with transits of the major planets over this degree. The results have been recorded in the 40th yearbook for Cosmobiological Research 1969. In accordance with adopted belief of ancient times, this fixed star is supposed to be bound up with the realm of the dead and is therefore associated with death and mourning. In an important position in a mundane map, Benetnash will claim human lives in calamities such as mine accidents, collapse of houses and bridges, mountain slides, earth tremors and catastrophes caused by weather. Uranus was in exact conjunction with Benetnash at the end of July 1969. This time was marked with extreme tension between Prague and Moscow, followed later in August by the Russian takeover of the USSR. The Czech reformers in Schwarzau on the Theiss fought for the freedom of their nation on the 30th July with the Russian political bigwigs. The Soviets widened their 'maneuvers' in Poland. [Fixed Stars and Their Interpretation, Elsbeth Ebertin, 1928, no.46, p.57, under the name Benetnash]
~ One of the interesting points (aside from me being a sidereal Cancer / Gemini myself) is that some insist I am Cancerian, as they know me ... yet at the same time my Gemini side can drive them nuts ( look at the effect it had on LRichard above
). Under closer analysis my Sun nature is Gemini but my tropical Leo Moon moved as well so sidereally my Moon is now in Cancer, and that is the Cancerian energy people pick up on - under examination it is apparent that my Cancerian energy IS being expressed in the mode of the Moon and not the Sun ... and the Sun Gemini shift explains a lot about me that would be confusing to see me 'as a Cancer'
But its all a lot more complex than this, and observations need to be made in context with interplanetary relationships , ruling planets and 'chart themes'.