On Saturday, 2 March 2019, observers in Western Europe should seek a location offering a level and unobstructed southeastern view at civil dawn (some 36 minutes before sunrise in the heart of the UK) to have a chance of seeing the 25-day-old waning crescent Moon between Venus in Capricornus and Saturn in Sagittarius with the unaided eye.
The innermost planet’s best evening showing of the year for northern observers occurs during the fortnight starting 20 February. Skywatchers will get optimal views by sourcing a location that offers an unobstructed view of the horizon from west-southwest through west at the end of civil twilight, which is about 40 minutes after sunset for the heart of the British Isles.
Have you ever seen Mercury with the naked eye? If not, now is the time to check the elusive innermost planet off your list. Mercury reaches greatest easterly elongation from the Sun on Monday, 18 April, the highlight of a very favourable dusk apparition in the west-northwest for observers in Western Europe and the British Isles.
Even casual observers cannot fail to notice dazzling Venus currently gracing the western horizon at dusk. Owing to a favourable set of circumstances, the brightest planet is visible long after sunset. How late can you see it set in the British Isles? For those north of the Arctic Circle, Venus is presently circumpolar and doesn’t set at all!