favourable opposition

In a favourable opposition, Eros can approach the Earth to within 22 million kilometres.

Less favourable oppositions during late autumn in the Northern Hemisphere still have Vesta at a magnitude of around +7.0.

During the favourable opposition of 1892, W. H. Pickering observed numerous small circular black spots occurring at every intersection or starting-point of the "canals".

They ended the league season in 9th place out of ten teams, but will hope to come back stronger in 2010 after a league reshuffle left them with much more favourable opposition.

Admittedly, there was a very favourable opposition in 1956, but the opposition of 1948 was very poor (in fact, it was about the most unfavourable position possible, in respect of the Mars-Earth distance at opposition).

Juno can reach +7.5 at a favourable opposition, which is brighter than Neptune or Titan, and is the reason for it being discovered before the larger asteroids Hygiea, Europa, Davida, and Interamnia.

Mars' magnitude in particular changes with elongation: it can be as low as +1.8 when in conjunction near aphelion but at a rare favourable opposition it is as high as 2.9, or seventy-five times brighter than its minimum brightness.

Jupiter orbits the Sun well beyond the orbit of Mars, and though the solar radiation at Jupiter is about 25 times less than at the Earth, Jupiter is so large that only Venus, and Mars at the most favourable oppositions, outshine Jupiter in our skies.