Observing

See a lunar occultation bonanza on the night of 5—6 November

2 November 2017 Ade Ashford

Many will be looking skyward to see terrestrial pyrotechnics this Bonfire Night, but if you own a small telescope and can escape the light pollution, you can see the waning gibbous Moon hide three naked-eye stars in Taurus on the night of 5—6 November, culminating in first-magnitude star Aldebaran in the small hours of Monday morning.

Observing

See the old crescent Moon meet Venus at dawn on 18 October

17 October 2017 Ade Ashford

Observers in the British Isles and Western Europe should look low to the east about an hour before sunrise on Wednesday, 18 October to see the slim crescent of a very old Moon close to the brightest planet, Venus. Mars is also nearby for the keen-eyed among you, but don’t leave it too late or the growing twilight will drown out the Red Planet.

Observing

See the crescent Moon pass in front of star gamma Librae on 24 September

23 September 2017 Ade Ashford

A waxing crescent Moon hanging low above the horizon in evening twilight is always a pleasant sight to behold, but observers in the UK watching the 4-day-old Moon through a telescope around 40 minutes after sunset on Sunday, 24 September have an additional treat in store in the form of an occultation of naked-eye star gamma (γ) Librae.

Observing

See Mercury meet Regulus and Mars near Venus an hour before sunrise

6 September 2017 Ade Ashford

Observers in the UK and Western Europe should find an observing location offering an unobscured eastern horizon an hour before sunrise on Sunday, 10 September to see innermost planet Mercury just 0.6 degrees from Regulus, the brightest star in Leo. Conspicuous planet Venus is your convenient celestial guide to finding Regulus, Mercury and Mars.

Observing

See the International Space Station, Moon and Saturn in the UK sky tonight

2 August 2017 Ade Ashford

The serene beauty of the International Space Station sailing silently overhead needs nothing more than the naked eye to appreciate. But when the dazzling ISS is also in conjunction with a pair of prominent Solar System bodies — such at the Moon and Saturn on the night of 2 August 2017 in the UK — you may wish to grab your binoculars and look low in the south-southwest just before 11:20pm BST.

News

Scientists spy new evidence of water in the Moon’s interior

26 July 2017 Astronomy Now

A new study of satellite data finds that numerous volcanic deposits distributed across the surface of the Moon contain unusually high amounts of trapped water compared with surrounding terrains. The finding of water in these ancient deposits, which are believed to consist of glass beads formed by the explosive eruption of magma coming from the deep lunar interior, bolsters the idea that the lunar mantle is surprisingly water-rich.

Observing

Mercury’s prominent evening show under southern skies

13 July 2017 Ade Ashford

Mercury is generally something of a challenge to observe, but the run-up to a particularly favourable easterly elongation occurring on 30 July provides ample opportunities for locating the innermost planet in the evening sky — particularly from the Southern Hemisphere, where a prominent celestial marker in the form of a 2-day-old Moon passes close by on 25  July.

Observing

See the Moon meet the ringed planet on the night of 6—7 July

5 July 2017 Ade Ashford

Skywatchers in the UK and Western Europe should cast their gaze low in the southern sky late into the evening of Thursday 6 July to see the 12-day-old waxing gibbous Moon in conjunction with ringed planet Saturn. The pair are separated by just 3½ degrees, nicely framed in a typical 10×50 binocular. For telescope users, the night of 6—7 July is also good for spotting Saturn’s bright moons. We show you what to look for and where.