develops software for Pricer's electronic shelf label system.
Working forward to the year 2090, I find only a handful of comparable appulses
Interestingly, their appulse
(actual closest approach on the sky) occurs 6 days later, but even then their separation is more than 4[degrees].
(closest encounter) comes on August 20th, when Mercury passes 1[degrees] below Venus, as shown in the "film strip" at right.
(least separation) of the two is only 4.
what might be the consequences of so near an appulse
(closest approach to each other) is 0.
Their conjunction (equal right ascension) and appulse
(closest pairing) come on the morning of October 3rd, when Venus lies as little as 0.
Charts depicting interesting mutual appulses
are kept up to date on the CS website and in due course we shall try some targeted observing campaigns.
Asteroid opposition charts including asteroid appulses
Another page shows appulses
between asteroids if they are brighter than magnitude 15 and have a good elongation from the Sun.
Graham Relf now posts useful information on the website of the Computing Section including finder charts of asteroids one month or so either side of opposition (for objects brighter than mag 12) as well as a list of forthcoming appulses
of minor planet pairs which approach within 3' of each other.