.... But Coley said that a planet is only Cazimi if it is within 17 minutes of the centre of the centre of the Sun in both celestial longitude and latitude.
The idea here is that the planet is not visible when it is 'combust', due to the light of the Sun, so the Sun takes away the planet's power. But when a planet transits the sun, it becomes visible once again. In fact, the planet is now so powerful, that it can be seen despite the brilliance of the sun. That is Cazimi. In these circumstances, the shadow of the planet would be seen as it transited across the face of the Sun - but only the Moon, Venus and Mercury can do this. The outer planets (according to this logic) would never be 'Cazimi'.