Sky ArchiveTonight

Full Strawberry Moon and Saturn on June 27 and 28

On June 27 and 28, 2018, find the full moon – called the Rose Moon, Flower Moon or Strawberry Moon, and the Oak Moon, Cold Moon or Long Night’s Moon from the Southern Hemisphere – and look in the moon’s glare for a starlike point. That point is a planet, Saturn.

Then, as the chart at top shows, you’ll want to keep watching. Before June ends, the waning gibbous moon will pair up with the red planet Mars, now dramatically bright in our sky and headed for its closest and brightest since 2003.

As our Earth turns underneath the heavens on these June nights, this month’s full moon and Saturn will move westward across your sky. As seen from the whole Earth, the twosome will climb highest up for the night around midnight, and will sit low in the west at dawn on June 28 and 29.

Of course, the moon and Saturn sat low in the west at dawn on June 27, too, but they were farther apart. Eliot Herman caught them in Tucson, Arizona’s breaking dawn. Thank you, Eliot! By the way, a moon low on the horizon looks reddish for the same reason the sun does … because then you are seeing the moon through a greater-than-usual thickness of Earth’s atmosphere.
This is the best time of 2018 to peer toward Saturn’s rings with a telescope. Check out these recommended stargazing locations and this list of summertime star parties. This photo was taken around the time of Saturn’s 2017 opposition by James Martin. Viewing Saturn’s rings soon? Read me 1st.

The moon turns precisely full on June 28, 2018, at 4:53 Coordinated Universal Time (UTC). The moon reaches its full phase less than one day (about 16 hours) after Saturn reaches opposition, marking the middle of the best time of year to see the ringed planet. This year, in 2018, Saturn reaches opposition on June 27, at 13:00 Coordinated Universal Time (UTC), and the moon turns full some 16 hours later, on June 29, at 4:53 UTC. Since Saturn’s opposition and the full moon occur in close proximity in 2018, the night of June 27-28 features the moon and Saturn together all night long.

Jörgen Andersson of Swedish Landscape & Nature Photos captured this peaceful image of the nearly full moon at Big Lake, Storsjön, Sweden, on June 25, 2018.

Although the full moon occurs at the same instant worldwide, the clock reading varies by time zone. June 28 at 4:53 UTC translates to June 28 at 12:53 a.m. Eastern Daylight Time (EDT). Thus, at all the U.S. time zones to the west of EDT, the moon turns precisely full on Wednesday, June 27, at 11:53 p.m. CDT, 10:53 p.m. MDT, 9:53 p.m. PDT, 8:53 p.m. AKDT (Alaska Daylight Time) and 6:53 p.m. HST (Hawaiian Standard Time). Translate June 28 at 4:53 UTC to your time.

So the date of the June 2018 full moon depends on your time zone. From the most of the contiguous U.S., the moon turns full on the evening of June 27. From Portugal and the western portions of Africa, the instant of full moon occurs before sunrise June 28. For Asia, Indonesia, Australia, New Zealand and the most of Europe, the moon turns full during the daylight hours on June 28, at which time the sun is above the horizon and the moon is below it. See the worldwide map below.

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Image via the U.S. Naval Observatory. Day and night sides of Earth at the instant of the June 2018 full moon (June 28, 2018, at 4:53 Universal Time). The shadow line at left depicts sunset June 27 and the shadow line at right represents sunrise June 28.

Bottom line: Saturn is the bright object near the full moon on June 27 and 28, 2018.

A planisphere is virtually indispensable tool for beginning stargazers. Order your EarthSky planisphere from our store.

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June 27, 2018
Sky Archive

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Bruce McClure

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