Close Venus-Jupiter Conjunction on August 18th

Here's your invitation to a spectacular close conjunction of the sky's two brightest planets, Venus and Jupiter, next Monday morning.

On August 18th, the two brightest planets come together in the predawn sky for their closest pairing since 2000.
Sky & Telescope diagram

Planets pair up plenty often in the sky, but rarely do they dance this closely. During Venus and Jupiter's close conjunction shortly before dawn on Monday, August 18th, they'll be separated by only 13° or less. It's the very best planet-planet meetup of 2014 — in fact, these two worlds haven't paired so closely since 2000.

And it all happens right next door to Messier 44, the Beehive Cluster, in the constellation Cancer the Crab.

The two planets' tight dance will be brief. Venus is headed toward the eastern horizon and solar conjunction, while Jupiter only recently escaped the glare of the sun. With every morning, Jupiter rises a little higher in the east and Venus a little lower. As the two planets trot off in different directions, we'll see them slowly approach and separate.

Some pairings are close, others far

Venus and Jupiter rise over Lake Superior in Duluth, Minn. on June 30, 2012. Some pairings are close, others far.
Bob King

On August 14th, they'll be just 4° apart some 10° high in the northeastern sky 30 minutes before sunrise. To spot the duo, find a location with an open view nearly down to the eastern horizon.

You can start watching for the Venus-Jupiter conjunction as early as an hour before sunrise, but the planets will be very low and possibly obscured by clouds or haze. Bring along a pair of binoculars just in case. Not sure when the sun rises? Click here and enter your city.

Each following morning, the distance between them shrinks by 1° (twice the diameter of the full Moon) until the 18th, when they'll be about 20 arcminutes (20′) apart, depending where you are in North America. You'll be able to cover both planets with the eraser of a pencil held at arm's length. That's what I call snug!

A view built for two

Here's how Venus and Jupiter will look on August 18th in a low-power telescope. Jupiter's moons (from left): Ganymede, Callisto, Io, and Europa.
Source: Stellarium

While conjunctions of Venus and Jupiter occur about once a year on average, they vary considerably in visibility and separation. Some happen in daylight, while others are wide misses.

Proximity makes for exciting conjunctions, and this event is the closest for North America since a similar morning pairing on April 23, 1998, almost an eternity ago. And there's more: The next Jupiter-Venus tango occurs less than a year from now, on June 30th, when they'll be just 20′ apart and conveniently placed in the western evening sky during twilight.

The View Through a Telescope

If you own a telescope, tote it out for a closer look. Both planets will fit with room to spare in the same field of view, a sight not to be missed. Blazing Venus mimics a tiny full moon just 10″ across; Jupiter's three times as wide. Will you be able to spot Jove's two 'tire track' equatorial belts and four moons?

Jupiter and Venus buzz the Beehive

Not only are Jupiter and Venus paired up on August 18th, but they're also in conjunction with the Beehive star cluster, M44.
Source: Chris Marriott's SkyMap

With twilight well underway, binoculars should help you track down the Beehive Cluster. I suspect you'll still see its brightest stars — look just to the left of Venus.

As close as this conjunction is for observers in North America, the planets will be even cozier for central European sky watchers. Closest approach of 13′ (0.2°) happens around 5h Universal Time as dawn's first light touches the rugged Alps.

Track Jupiter and its moons in the sky using Sky & Telescope's handy JupiterMoons app.

8 thoughts on “Close Venus-Jupiter Conjunction on August 18th

  1. mary bethmary beth

    Great information! I’m looking very forward to the beautiful sight Monday morning! Hope there’s clear skies for all! S&T articles are so well-written and easy to understand. I always pick up a fun fact that stays with me, that I pass along to others. It’s nice knowing we will see them paired up again within a year! Already have it on next year’s calendar! Thank you!

  2. alpha137don

    Thank you for this fantastic hedzup.
    I worked on some of the research which went into the Galileo project, of course many many many moons ago, but only within the last month I have re-triggered my studies of ‘The Giant,’ including preparations for viewing.
    We’ve experienced very few clear skies in the past couple weeks but CalSky is forecasting the morning of the 18th to be very good for viewing. The wonderful thing is that now that Jupiter is moving from our Sun’s glare there will be many days and nights in the upcoming months for some terrific Jupiter viewing.
    Thank you again. don

  3. szweda

    These articles about accessible naked eye/binocular events are great. Bob King does a great job. Very nice to be able to interest the rest of the family in these sorts events, since they are easy to explain and observe with people who have only a passing interest and limited patience, but with still an impressive sight as a reward.

  4. Glenn

    This conjunction is a particularly close event and is part of a 24 year cycle. As a kid I saw the August 1966 event, then again in August 1990 and now weather permitting the 2014 apparition. Clear skies to all…. G

    1. Tony

      Last Venus-Jupiter conjunction in this cycle to occur more than 60 days before superior conjunction of V. In 2038 V and J will meet on August 23 and superior conjunction of V will be on October 18.

  5. Tony

    Saw the conjunction from my Vancouver Island home — like the Cat’s Eyes of Scorpius only much closer together — and brighter! Next up for Venus — a conjunction with Regulus on September 5. According to Wikipedia this is part of an 8-year cycle in which Venus passes the star around its heliacal rising. But each time Venus and Regulus meet in this cycle their elongation is a little less. My attempts since 1974 to see Regulus during its early September conjunctions with Venus have been unsuccessful but I’ve always had some unfavourable combination of horizon obstructions and weather.

  6. Seldom

    I made a calibrated photo of the conjunction yesterday at 6:00 AM MDT (12:00 UT). My measurement indicated a separation of about 19.5′ at that time. Does a table exist showing times and separations, that I could compare my measurements to?

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