Sunrise Stunner: Annular Solar Eclipse of June 10th

Diana Hannikainen, Observing Editor, Sky & Telescope
+1 617-500-6793 x22100, [email protected]

Rick Fienberg, Press Officer, American Astronomical Society
+1 202-328-2010 x116, [email protected]

Gary Seronik, Consulting Editor, Sky & Telescope
[email protected]

Note to Editors/Producers: This launch is accompanied by high-quality graphics; see the tip of this launch for the pictures and hyperlinks to obtain.

On Thursday morning, June 10th, viewers throughout the north and northeastern half of North America can witness — climate allowing — the continent’s first eclipse of the Sun since August 2017.

If you occur to search out your self on a swath of land that runs from southern Ontario and throughout Hudson Bay in northern Canada, you’ll witness a really particular occasion: an annular eclipse. Unlike a complete eclipse, on June 10th the brand new Moon gained’t fully blot out the Sun. The end result is an excellent ring of mild that blazes across the black silhouette of the Moon. See under for recommendation on methods to view this safely.

The phrase “annular” comes from the Latin annulus, which implies “ring.” Annular eclipses happen when the Moon is close to apogee, the farthest level in its orbit round Earth, and so it seems smaller within the sky than the Sun.

The path of annularity continues from Hudson Bay throughout Greenland, the Arctic, and into northeastern Russia. Most of Europe, most of Russia, and components of Asia can be aware of partial phases.

For anybody in a small patch of land comprising northwestern Michigan, a lot of Minnesota, northeastern North Dakota, southeastern Manitoba, and southwestern Ontario, the Sun can be in annular eclipse earlier than dawn — that is the detrimental path of annularity. Pay consideration to the standard of the sunshine as morning twilight brightens after which seemingly pauses for some time earlier than resuming to scrub away the night time. 

If you’re exterior the trail of annularity (however throughout the space of visibility), you need to see partial phases of the eclipse — the Sun will seem to have a chunk taken out of it. That chunk is the silhouette of the brand new Moon, and its dimension will rely in your location. As the Sun climbs increased and the Moon strikes alongside in its orbit, the chunk will get smaller and finally disappears.

In some areas, the partial eclipse is already underway because the Sun rises. “It’ll be worth scouting around ahead of time for an unobstructed view to the northeastern horizon,” says Sky & Telescope’s observing editor Diana Hannikainen. “You should witness a thrilling sight on the morning of June 10th as the horns of the solar crescent float into view above the horizon.” Bring a digital camera and a secure solar filter that matches over the entrance of the lens for an opportunity to take some extraordinary pictures. For a how-to, see Sky & Telescope’s article How to Safely Photograph the Sun.

Here’s a variety of timings related to the eclipse on June 10th:

Local Circumstances of the June 10th Solar Eclipse 

Location Sunrise Maximum eclipse Eclipse ends 
Time Obscuration Sun’s Altitude
New York, NY 5:24 5:32:49 72.5% 0.6° 6:30:55
Boston, MA 5:07 5:33:20 72.9% 3.3° 6:32:37
Hartford, CT 5:15 5:33:25 73.1% 2.0° 6:32:09
Manchester, NH 5:06 5:34:27 74.0% 3.6° 6:33:53
Portland, ME 4:59 5:34:46 74.1% 4.7° 6:34:42
Syracuse, NY 5:25 5:37:12 77.3% 1.0° 6:35:39
Burlington, VT 5:08 5:37:31 77.3% 3.6° 6:37:04
Montreal, PQ 5:05 5:39:10 78.8% 4.2° 6:38:58
Quebec City, PQ 4:51 5:39:56 78.8% 6.4° 6:40:41
Toronto, ON 5:36 5:40:05 80.2% 0.6° 6:38:02
Yarmouth, NS 5:42 6:33:03 71.3% 7.2° 7:33:58 

Obscuration is the fractional space of the Sun’s disk coated by the Moon. All instances are native and a.m. View an image of the table here.

How to View the Eclipse Safely

During annularity on June 10th, solely 89% of the realm of the Sun’s disk can be coated by the Moon. This leads to much less change within the high quality of daylight than you would possibly count on. For these exterior the trail of annularity, the dimming can be even much less and could also be imperceptible.

You could be tempted to have a look at the Sun instantly. Don’t! The ring of daylight blazing out from behind the Moon will stay blindingly vibrant — actually so. If you’ve got your eclipse glasses from the 2017 occasion, be sure to test them very rigorously for tears, scratches, or pinholes. If they’re intact, you’re good to go. Otherwise, buy one other pair. Remember, strange sun shades gained’t do the job.  

Another neat way to see the eclipse is to create a pinhole projector by poking a small hole in a card, holding it in daylight together with your again to the Sun, and holding a second card about three toes farther away within the first card’s shadow. Or you possibly can challenge onto the bottom instantly. Do not have a look at the Sun by means of the pinhole! Check out these Sun-viewing methods that Sky & Telescope recommends.

Cartographer Michael Zeiler presents detailed maps and graphical information on his web site. In specific, see his diagram of how the rising Sun will appear as seen from many more cities.

If you miss this eclipse or are in an unfavorable location, you’ve got two extra probabilities arising. October 14, 2023, will see the subsequent annular eclipse, one that can cowl a broader path throughout the U.S. from the West Coast, by means of the Southwest, and ending within the Gulf of Mexico. And gear up for April 8, 2024: that date will see the primary North American complete solar eclipse since 2017. The path of totality crosses Mexico, then stretches northeast from Texas to Maine, and leaves the continent within the Canadian Maritime Provinces. See the American Astronomical Society’s eclipse info page for particulars.

Read extra on this eclipse within the June 2021 difficulty of Sky & Telescope and on S&T‘s web site: A Sunrise Annular Solar Eclipse.

Sky & Telescope is making the illustrations under obtainable to editors and producers. Permission is granted for nonexclusive use in print and broadcast media, so long as acceptable credit (as famous) are included. Web publication should embody a hyperlink to

Path of Annularity of the June 2021 Eclipse
Across the Top End The path of the annular eclipse of June 10th stretches from southern Ontario, throughout Hudson Bay, into Greenland, over the Arctic, and finishes in northeastern Russia. Greatest eclipse happens simply off the coast of Greenland, the place most annularity will final 3 minutes and 51 seconds.
Sky & Telescope
Path of Annularity of the June 2021 Eclipse over Canada
Annularity and Partial Phase Coverage The icons present the depth of the eclipse seen from choose cities that can see partial phases of the occasion. In some areas, the Sun can be eclipsed because it rises, creating the chance for some thrilling pictures containing foreground surroundings. In the detrimental path of annularity, most eclipse happens earlier than dawn — should you reside in these areas, you would possibly discover uncommon twilight results.
Sky & Telescope
Eclipse Geometry
Geometry of an Eclipse When the brand new Moon is simply on the proper distance in its orbit to fully blot out the Sun, we witness a complete solar eclipse in all its glory (and solely then can look instantly on the Sun with out safety). But when the brand new Moon is barely farther from Earth in its orbit, it doesn’t fairly cowl the total solar disk. In these instances, we are able to benefit from the sight of a blazing ring of daylight encircling the silhouette of the Moon — however should take care to look at solely by means of a secure solar filter.
Sky & Telescope
Partial Eclipse at Sunset
Solar Crescent This photograph is from the May 20, 2012, deep partial eclipse as seen from the U.S. Southwest because the Sun was setting. The June 10th occasion may current the same sight to some viewers, however with the Sun rising above the northeastern horizon as an alternative.
Evan Zucker

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