Interpretation of Conjunction Aspect in Astrology
Planets are conjunct when they are 0° apart (usually in the same sign). When looking at transits (as opposed to natal astrology), we typically allow an orb (allowance) of 1°, so planets that are 0° to 1° degrees apart are considered conjunct.
Conjunctions represent a blending of the energies of the planets involved. When the planets involved are complementary, this is likely to work well. When the qualities of the planets involved are diametrically different, there is likely to be more tension involved.