Currently setting over four hours after the Sun as seen from the heart of the UK and visible in the west-southwest at dusk, dazzling Venus is about to hit peak brightness in the constellation of Pisces. The planet attains magnitude -4.8 on Friday 17 February — some 21 times the luminosity of brightest star Sirius gracing the southeast horizon as darkness falls.
Dazzling Venus and much fainter Mars have a close encounter with a young Moon in the constellation of Pisces at UK dusk on Tuesday 31 January. The trio form an equilateral triangle small enough to be encompassed by the field of view of a 7x binocular low in the west-southwest for a couple of hours from 7pm GMT.
Thursday 12 January brings not only a full Moon, but also finds brightest planet Venus at its greatest easterly elongation from the Sun. By the time darkness falls in Western Europe and the UK, Venus also lies just 0.4 degrees from outermost planet Neptune, while Mars lies less than the span of a fist at arm’s length to their upper left.
The young crescent Moon’s nightly motion from 31 December 2016 to 3 January 2017 carries it past dazzling planet Venus and first-magnitude Mars. A small telescope also reveals outermost planet Neptune, which passes just 0.02 degrees from Mars around 7h UT on 1 January, offering observers around the world a New Year’s Day treat.
Find a location that offers you an unobstructed view of the horizon from south to southwest an hour after sunset. With clear skies, you’ll be able to follow Venus and Mars from night to night on their celestial peregrinations through the constellations of Sagittarius and Capricornus. The two planets almost keep pace with each other throughout the remainder of November.
Planetary researchers at the German Aerospace Center (DLR) have pushed the limits of the data resolution from ESA’s Venus Express spacecraft. With this new technique, analysis of the top and eastern flank of 200-kilometre-wide volcano Idunn Mons in the southern hemisphere of Venus revealed an indication of geologically recent volcanism in this area.