Observing

Don’t miss brightening Comet 41P riding high in Ursa Major during March

17 March 2017 Ade Ashford

Comet 41P/Tuttle–Giacobini–Kresák orbits the Sun every 5.4 years and will pass through perihelion (its closest point to the Sun) on 12 April 2017. Motoring through Ursa Major at close to 2°/day during the remainder of March, this fascinating comet with a history of dramatic surges in brightness, passes close to Messier 97 and 108 on the UK night of 22 March.

Observing

See the Moon and largest planet Jupiter get close on 14 March

12 March 2017 Ade Ashford

Jupiter is now less than a month from opposition (7 April), so it’s very much open season for the Solar System’s largest planet. If you’re unsure where to find it, the rising 17-day-old waning gibbous Moon passes just two degrees from Jupiter on the UK evening of 14 March. Virgo’s brightest star, first-magnitude Spica, makes it a great binocular triumvirate.

Observing

See the Moon glide through the Hyades on 4-5 March

3 March 2017 Ade Ashford

On the night of 4-5 March 2017, UK observers with clear skies can see an occultation bonanza as the 6-day-old waxing crescent Moon passes in front of prominent members of the Hyades open cluster in Taurus. Some hours later, after the Moon has set in the British Isles, first-magnitude star Aldebaran is occulted across a large swathe of North America.

Observing

See planet Venus hit peak brightness in the evening sky

13 February 2017 Ade Ashford

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.

Observing

See Comet 45P’s close brush with Earth in the pre-dawn sky

9 February 2017 Ade Ashford

Comet 45P/Honda–Mrkos–Pajdušáková passes just 0.08318 astronomical units (7.73 million miles, or ~32 lunar distances) from Earth on the morning of 11 February. Early risers can catch the magnitude +7 comet speeding through the constellations of Hercules, Corona Borealis (CrB) and Boötes at up to 9 degrees/day.

Observing

See the Mars-Venus-Moon conjunction of 31 January

30 January 2017 Ade Ashford

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.

Observing

The Moon, Jupiter and star Spica line up at dawn on 19 January

18 January 2017 Ade Ashford

Before sunrise on Thursday 19 January, observers in Western Europe can see an interesting celestial conjunction in the southern sky. At about 6am local time, the waning gibbous Moon, largest planet Jupiter and Spica — the brightest star in the constellation of Virgo — all lie in a line encompassed by the field of view of a typical 7x or 8x binocular.

Observing

See brightest asteroid Vesta at its best

17 January 2017 Ade Ashford

On Wednesday 18 January, brightest asteroid 4 Vesta comes to opposition in the constellation of Cancer bordering on Gemini, ideally placed for observation by Northern Hemisphere skywatchers. While the truly eagle-eyed among you might glimpse it with the unaided eye on dark, moonless nights, Vesta is an easy binocular object.

Observing

See Venus farthest from the Sun, in conjunction with Neptune on 12 January

10 January 2017 Ade Ashford

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.