Jupiter and Venus gathered in late summer in the evening sky but never reached conjunction because Venus began retrograding, heading for inferior con- junction on November 2, before having a chance to meet up with Jupiter. Compare this scene to a similar one in September 2018, which is 24 years into the future from this point (three cycles of Venus and two cycles of Jupiter). This scene is a week later from my previous image and shows Venus on her last day in Virgo, and almost directly below Jupiter. Unannotated image |
On this date, Jupiter was at magnitude -1.82 with a diameter of 32.5"; Venus' magnitude was -4.53 with a diameter of 34.6". Their separation at the time of my photo was 6°52'56". During autumn evenings, the angle made by the western horizon and ecliptic is very shallow, so you might expect that a line made by Venus and Jupiter would reflect that, but in this case it does not ~ its steepness is a reflection of the fact that Venus' ecliptic latitude is well below the ecliptic. So, during every one of its apparitions mimicking the current one (the years 1986, 1994, 2002, 2010, 2018, and 2026), its orbit carries it well below Jupiter so as to make an almost vertical line with him. |