Sextile

The standard orb for a sextile is 4–6 degrees, though Hellenistic astrologers worked with a tighter orb and applied it only between signs in a specific whole-sign configuration. Modern astrologers, following Robert Hand's approach in Planets in Transit, treat the sextile as an aspect of opportunity — meaning the potential is there, but it doesn't just hand you results the way a trine might. The signs involved are always of compatible elements (fire/air or earth/water), which is part of why the energy flows without much resistance. In practice, a natal sextile between Venus and Jupiter reads differently than one between Saturn and Pluto — the planets' natures still dominate. Astrologers like Demetra George emphasize that sextiles show where you have latent ability that responds well to effort.

The sextile as a formal aspect category comes from Hellenistic astrology, codified in Ptolemy's Tetrabiblos (c. 150 CE), where it was listed among the five major aspects alongside the conjunction, opposition, trine, and square. The word derives from the Latin sextilis, meaning 'sixth,' since 60 degrees is one-sixth of the 360-degree circle. Earlier Greek sources, including fragments attributed to Nechepso and Petosiris (c. 2nd century BCE), referenced aspect doctrine, though Ptolemy systematized it most influentially. Medieval Arabic astrologers, including Al-Biruni in his 11th-century Kitab al-Tafhim, preserved and transmitted Ptolemaic aspect theory into European Renaissance astrology. The sextile was historically ranked below the trine in strength but above the square in favorability — a ranking most modern Western astrologers still follow.

Pull up your natal chart on Astro.com (free, under Extended Chart Selection) and look for the sextile symbol — it looks like an asterisk or a small star. Note which planets are involved and what houses they fall in. Robert Hand's Horoscopes Symbol by Symbol gives solid delineations for natal sextiles by planet pair. For transiting sextiles, Planets in Transit (Hand) is the go-to reference. Steven Forrest's The Inner Sky also covers aspect interpretation in plain language without over-inflating the sextile into something it isn't. Track a transiting sextile to your natal Sun or Moon over a week and note what actually comes up.