Just put the finishing touches to a planetary elongation chart. Here it is in all of its glory:
A high quality PDF can be downloaded here.
This chart shows the positions of the naked-eye planets to the east (left) or west (right) of the Sun. The vertical axis represents the days and months of the year. The diagonal bands represent constellation boundaries. The wavy yellow band is a region close to the Sun in which it would be difficult to observe the planets. This chart behaves like a game of PacMan; any planets reaching opposition 180 degrees west of the Sun wrap straight over to the evening sky on the far left. Think of this as being like an unwrapped cylinder!
The places where the paths of the planets intersect represent conjunctions. These are visually striking opportunities to see bright planets shining together in the sky. In 2015 there are at least 12 such opportunities.
There's a particularly striking gathering of the planets in the morning sky during October 2015. The planets Mercury, Venus, Mars and Jupiter will all appear together before sunrise on many of those autumn mornings.
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Dr Adrian Jannetta. Amateur astronomer, maths teacher and science enthusiast.