Planets, line-ups and comets in the UK sky, 2026–27

The planets' best showings from the UK, with when and where to look. No telescope is needed for most of these; binoculars help with Mercury, the comets and the fainter planets.

Next up: Morning planetary line-up In 15 days

2 Nov 2026.

Regulus, Jupiter, Mars, a thin crescent Moon and the Beehive Cluster form a striking line across the dawn sky.

Opposition
The planet is opposite the Sun: it rises at sunset, is highest around midnight and is at its brightest for the year.
Greatest elongation
Mercury or Venus at its furthest from the Sun in our sky: the best time to see it, in the west after sunset (east) or the east before dawn (west).
Conjunction
Two planets pass close together in the sky. They are nowhere near each other in space.
Line-up
Several planets on the same side of the Sun, strung along the ecliptic across the sky. They never form a straight line.
Occultation
The Moon passes in front of a planet or star cluster and hides it.

Coming up

Morning planetary line-up

2 Nov 2026

Planetary alignment

Regulus, Jupiter, Mars, a thin crescent Moon and the Beehive Cluster form a striking line across the dawn sky.

Mercury greatest elongation west

20 Nov 2026

Planet elongation

Third western elongation of Mercury (about 20°); morning visibility.

Uranus at opposition

25 Nov 2026

Planet opposition

Uranus lies opposite the Sun and is visible all night; findable in binoculars from a dark site, and a small green disc in a telescope.

Comet 2P/Encke (Dec 2026)

1 Dec – 31 Dec 2026

Comet

The brightest periodic comet of the year, reaching about magnitude 4; low in the evening sky from the UK through December, so you need a clear western horizon.

Encke is the parent of the Taurid meteor shower.

Comet 2P/Encke (Jan 2027)

1 Jan – 31 Jan 2027

Comet

One of Encke's best returns for UK observers since 2003, brightening quickly and possibly reaching magnitude 5 by late January. It sits well up in the south-west after dark early in the month, then sinks into the evening twilight; binoculars recommended. Comet brightness is notoriously unpredictable.

Encke is the parent of the Taurid meteor shower.

Venus greatest elongation west

3 Jan 2027

Planet elongation

Venus reaches its greatest distance west of the Sun (about 47°) and shines brilliantly as the morning star, around 20° up in the south-south-east at sunrise.

Mercury greatest elongation east

3 Feb 2027

Planet elongation

Mercury stands about 18° east of the Sun; one of its best evening showings of the year from the UK, around 10° up in the west-south-west half an hour after sunset.

Jupiter at opposition

11 Feb 2027

Planet opposition

Jupiter lies opposite the Sun and is visible all night, riding high in the south around midnight at magnitude -2.6. Its four bright moons are easy in binoculars.

Mars at opposition

19 Feb 2027

Planet opposition

Mars is opposite the Sun and visible all night, high in the south around midnight at magnitude -1.3. This is a distant opposition, so the disc is small in a telescope (about 14 arcseconds).

Mercury greatest elongation east

28 May 2027

Planet elongation

Mercury reaches about 23° east of the Sun; a good evening apparition for the UK, around 12° up in the west-north-west 40 minutes after sunset.

Mercury greatest elongation west

15 Jul 2027

Planet elongation

Mercury reaches about 21° west of the Sun; a fair morning showing, low in the east-north-east before sunrise. Binoculars help, and it climbs a little higher over the following week.

Neptune at opposition

28 Sep 2027

Planet opposition

Neptune lies opposite the Sun and is visible all night, highest around midnight. At magnitude 7.7 you will need binoculars or a telescope and a finder chart.

Saturn at opposition

18 Oct 2027

Planet opposition

The ringed planet lies opposite the Sun: visible all night and at its brightest (magnitude 0.1), due south around midnight. An excellent target for even a small telescope.

Mercury greatest elongation west

4 Nov 2027

Planet elongation

Mercury reaches about 19° west of the Sun; its best morning apparition of the year for the UK, around 10° up in the east-south-east half an hour before sunrise.

Venus–Mars conjunction

25 Nov 2027

Planetary conjunction

Venus passes about 0.3° from Mars, but very low in the south-west after sunset, only around 5° up half an hour after the Sun goes down. You will need a flat horizon and binoculars to pick out faint Mars beside brilliant Venus; wait until the Sun has fully set.

Uranus at opposition

30 Nov 2027

Planet opposition

Uranus lies opposite the Sun and is visible all night, riding high around midnight; findable in binoculars from a dark site at magnitude 5.6, and a small green disc in a telescope.

Earlier · 16

Mercury greatest elongation east

12 Oct 2026

Planet elongation

Third eastern elongation of Mercury (about 25°); evening apparition.

Saturn at opposition

4 Oct 2026

Planet opposition

The ringed planet lies opposite the Sun: visible all night and at its brightest. An excellent target for even a small telescope.

Neptune at opposition

26 Sep 2026

Planet opposition

Neptune lies opposite the Sun and is visible all night, highest around midnight. You will need binoculars or a telescope and a finder chart.

Reappearance of Venus after lunar occultation

14 Sep 2026, 11:30 BST

Occultation

A tricky daytime observation: the Moon hides Venus and then reveals it again around 11:30. You will need a telescope and an accurate finder to catch it against a bright sky.

Safety: This happens close to the Sun in a daytime sky. Never sweep for it with binoculars or a telescope without knowing exactly where the Sun is.

Lunar occultation of the Beehive Cluster (M44)

8 Sep 2026, 04:00 BST

Occultation

The waning crescent Moon drifts in front of the Beehive star cluster from about 04:00 until dawn washes it out. Binoculars show the stars winking out one by one.

Venus greatest elongation east

15 Aug 2026

Planet elongation

Venus reaches its maximum evening distance from the Sun; bright and easy to spot low in the west after sunset.

Mercury greatest elongation west

2 Aug 2026

Planet elongation

Second western elongation of Mercury (about 27°); good morning visibility.

Comet 10P/Tempel 2 (Jul 2026)

1 Jul – 31 Aug 2026

Comet

Short-period comet brightening to about magnitude 7 in early August; visible after sunset with binoculars, but low in the sky from the UK.

Mercury greatest elongation east

15 Jun 2026

Planet elongation

Second eastern elongation of Mercury (about 26° from the Sun); evening visibility.

Venus–Jupiter conjunction

8 Jun 2026

Planetary conjunction

Brilliant Venus and Jupiter close to within roughly a finger's width (about 0.5°) after sunset; the most eye-catching pairing of the year.

Comet C/2025 R3 (PanSTARRS) (Apr 2026)

20 Apr – 7 May 2026

Comet

Recently discovered comet that may brighten to magnitude 6–7; best from the UK in the pre-dawn hours of late April. Comet brightness is notoriously unpredictable.

Mercury greatest elongation west

3 Apr 2026

Planet elongation

Mercury appears farthest west of the Sun (about 28°); its best morning appearance of the year.

Six-planet alignment

20 Feb – 28 Feb 2026

Planetary alignment

Mercury, Venus, Saturn, Jupiter, Uranus and Neptune line up after sunset; Mercury, Venus, Saturn and Neptune sit near the western horizon while Jupiter rides high.

Mercury greatest elongation east

19 Feb 2026

Planet elongation

Mercury reaches its greatest apparent distance east of the Sun (about 27°); visible low in the west after sunset.

Jupiter at opposition

10 Jan 2026

Planet opposition

Jupiter lies opposite the Sun and is visible all night; a great time to observe the gas giant at its brightest.

Comet 24P/Schaumasse (Jan 2026)

1 Jan – 28 Feb 2026 (peak 8 Jan)

Comet

Periodic comet predicted to reach magnitude ~8; visible with binoculars or a small telescope before dawn from the UK; climbs above the eastern horizon and fades through February.

Questions

When is the next planet at opposition?

Uranus at opposition on 25 November 2026. Uranus lies opposite the Sun and is visible all night; findable in binoculars from a dark site, and a small green disc in a telescope.

When is the next planetary alignment?

The morning planetary line-up on 2 Nov 2026: regulus, Jupiter, Mars, a thin crescent Moon and the Beehive Cluster form a striking line across the dawn sky.

What is a planetary alignment?

Several planets visible on the same side of the Sun at once, spread along the path the Sun and planets follow across the sky. They never form a straight line in space, and some may need binoculars.

When is the best time to see Mercury?

At greatest elongation, when it is furthest from the Sun in our sky: low in the west after sunset at an eastern elongation, or low in the east before dawn at a western one. Spring evenings and autumn mornings give the UK its best views.

More in the night sky: Meteor showers · Full moons · Eclipses · Solstices and equinoxes. Every event in one list: the UK sky calendar.