Apparent diameter plot for Jupiter 2017-2026
This blog post was published 7 years ago and may or may not have aged well.
While reading please keep in mind that it may no longer be accurate or even relevant.
The apparent diameter of Jupiter varies with the Earth-Jupiter distance. Depending on the distance, the apparent angular diameter of Jupiter is between approx. 0.5 and 0.8 arcminutes.
For best astrophotography results, one should pick a time when Jupiter is closest. Similar to my plot of the apparent size of Venus, I wrote a short program to plot Jupiter’s apparent diameter for the time period 2017-2026 (see featured image).