Current Moon Phase

Waxing Crescent
8% of full

Farmers Almanac
The 2017 Farmers Almanac
Farmers' Almanac

A Total Eclipse of the Full Harvest Supermoon!

Share on Facebook Share on Twitter Add to Google+ Share on Pinterest Subscribe by Email Print This Post
A Total Eclipse of the Full Harvest Supermoon!

On Sunday night, September 27th, for the fourth time in the last 17 months, the Moon will once again become completely immersed in the Earth’s shadow, resulting in a total lunar eclipse.

As is the case with all lunar eclipses, the region of visibility will encompass more than half of our planet. Nearly a billion people in the Western Hemisphere, nearly a billion and a half for much of Europe and Africa, and perhaps another half billion in Western Asia, will be able to watch as the full Harvest Moon becomes a shadow of its former self and morphs into a glowing coppery ball.

It will also be the biggest full Moon of 2015, since on the very same day, the Moon will also be at perigee — its closest point to the Earth at 221,753 miles (356,877 km) — making it a so-called “supermoon.”

Visibility Zone
Almost everyone in the Americas and Western Europe will have a beautiful view of this eclipse. The Moon will be high in a dark evening sky as viewed from most of the United States and Canada while most people are still awake and about. The only problematic area will be in the western quarter of the United States and west-central Canada, where the first partial stage of the eclipse will already be under way when the Moon rises and the Sun sets on Sunday evening. But if you have an open view low to the east, even this situation will only add to the drama, for as twilight fades, these far-westerners will see the shadow-bitten Moon coming into stark view low above the landscape. And by late twilight, observers will have a fine view of the totally eclipsed lunar disk glowing red and dim low in the eastern sky.

Alaskans will also see the Moon rise during the eclipse; in fact, much of eastern Alaska will see the Moon rise while completely immersed in the Earth’s shadow. For Hawaiians, moonrise unfortunately come after the end of totality, with the Moon gradually ascending the sky and its gradual emergence from the shadow readily visible. Western Europe and Africa also will get a good view of the eclipse, but at a less convenient time: before dawn on Monday morning, September 28.

Seeing Red
Here’s the reason for the ruddy coloration during totality: If you were an astronaut on the Moon during the eclipse, you would be seeing the Earth move in front of the Sun. Since the Moon shines by reflected sunlight, you would think that once the Earth completely covers the Sun that the lunar landscape would be plunged into complete darkness. But that does not happen because when the Sun is completely hidden, a reddish ring of light appears to surround the disk of the Earth. That light is our atmosphere being backlit by the Sun. The reddish color is the same color that we see each day at sunrise and sunset; so during totality we are seeing the combined light of all of the sunrises and sunsets occurring around our globe that is dimly lighting up the surface of the Moon during the total eclipse.

At mid-totality, the darkness of the sky is very impressive. Faint stars, which were completely washed-out by the brilliant moonlight prior to the eclipse, become visible and the surrounding landscape takes on a somber hue. During totality, the Moon appears anywhere from 10,000 to 100,000 times dimmer than before the eclipse began. As totality ends, the eastern edge of the Moon begins to emerge from the umbra, and the sequence of events repeats in reverse order until the spectacle is over.

Unless airborne volcanic aerosols or other unusual atmospheric effects influence its appearance, the Moon’s disk should appear moderately bright, especially right around the beginning and end of totality. The lower part of the Moon will likely appear brightest and glowing a ruddy or coppery hue, while the upper half of the Moon should look more gray or chocolate color.

Eclissi lunare, spazio terra luna sole

Eclipse Schedule
The eclipse will actually begin when the Moon enters the faint outer portion, or penumbra of the Earth’s shadow. The penumbra, however, is all but invisible to the eye until the Moon becomes deeply immersed in it. Sharp-eyed viewers may get their first glimpse of the penumbra as a delicate shading on the left part of the Moon’s disk about 20 minutes before the start of the partial eclipse (when the round edge of the central shadow or umbra, first touches the Moon’s left edge). During the partial eclipse, the penumbra should be readily visible as a dusky border to the dark umbral shadow.

The Moon will enter Earth’s much darker umbral shadow at 1:07 on September 28 by Greenwich or Universal Time, which is 9:07 p.m. on September 27 in the Eastern Time Zone, 8:07 p.m. Central Time, 7:07 p.m. Mountain Time and 6:07 p.m. Pacific Time (before moonrise). Sixty-four minutes later the Moon is entirely within the shadow, and sails on within it for 72 minutes until it begins to find its way out at the lower left (southeastern) edge.

The Moon will be completely free of the umbra by 9:27 p.m. Pacific Time or 12:27 a.m. (September 28) Eastern Time. The vaguer shading of the inner penumbra can continue to be readily detected for perhaps another 20 minutes or so after the end of umbral eclipse. Thus, the whole experience ends toward 1:00 a.m. for the East (with the re-brightened Moon now sloping down along the arc it describes across the sky) or during the mid-evening hours for the West.

For Europe and Africa, the mid-point of this eclipse occurs roughly between midnight and dawn on the morning of September 28 and as such the Moon will still be well placed in the western sky. At the moment of mid-totality (2:48 UT), the Moon will stand directly overhead from a point in the Atlantic Ocean a couple of hundred miles to the north of Belém, Brazil.

Upcoming Lunar Eclipses
There will be a partial eclipse of the Moon that will be visible across much of Europe and Asia on the night of Aug. 7, 2017. About 25-percent of the Moon’s diameter will become immersed in the umbra, leaving the upper three-quarters of the Moon visible. During the early morning hours of January 31, 2018, there be another total lunar eclipse; that one favors the western part of North America; eastern North America will see the Moon set during totality.

So although we’ve had a veritable plethora of total eclipses of late, keep in mind that after September 27, you’ll have to wait almost three years until your next chance to see another.

Check out our short video about the Full Harvest Moon and how it got its name.

Articles you might also like...

33 comments

1 SuzyQ { 09.27.15 at 11:26 pm }

Was able to watch the moon starting at 9:30 to 11:25. The sky is clear here Stoneham, Massachusetts.

2 Brando56 { 09.27.15 at 11:12 pm }

Was watching the lunar eclipse happen up until too many dark clouds took my awesome view. Still had maybe 1/3 to go before totality. It’s about 10:10 here in Warrenton, MO. Still keeping a watch on the skys!!!

3 Steve E { 09.27.15 at 10:42 pm }

Watching the eclispe laying on the football field in Yarmouth Maine. Pretty Awesome!!

4 Rae Ann Callahan { 09.27.15 at 11:53 am }

I am hoping to have the clouds and rain move out so I can fully enjoy tonights full Lunar Eclipse. Im in North Carolina and sure would love to be able to film every second of this event. As far as people who fear tonights Blood Moon…. Is silly. Be happy with every moment of every day. There is no sense into investing in something that hasnt happened (yet). Happy Viewing everyone~

5 Debbie { 09.27.15 at 11:20 am }

I live im Johannesburg South Africa when will we be able to see it? Or will we not see it?

6 Pia { 09.27.15 at 2:03 am }

Yay! Western Canada – British Columbia. Can’t wait to see it!!!

7 maureenc { 09.26.15 at 7:11 am }

I’m sad that down in Oz I cannot share the eclipse. We are on the dark/light?? side of the moon

8 jo h { 09.25.15 at 7:59 pm }

Its the end of days, be with those you love my dear friends . …peace

9 Jason { 09.25.15 at 10:18 am }

This photo is a fake, here is the elk in front of the full moon http://www.idaho4homes.com/

10 sandy { 09.25.15 at 9:26 am }

Want to see this one. But problem be rainy , foggy here in Ohio will miss it. Hope my grandson Matthew gets go see it. God bless the one reading this. Sandy

11 cindy goodman { 09.25.15 at 7:30 am }

god bless on on this night and please pray for is all to be safe and god to watch over us all

12 Susan Pierce { 09.25.15 at 12:33 am }

What is a blood moon? Is there another name for blood moon? I do not believe in its prophecy.

13 Beagle Mom { 09.24.15 at 10:40 pm }

Can’t wait to see this one! Who’s up for a total lunar eclipse party!?

14 Charles Free { 09.24.15 at 10:32 pm }

@ Melby Lopez- Being a Lunar Eclipse, no special eye ware is needed. Glasses may need to be worn during a Solar Eclipse, though. Hope this helps.

15 Rick Rowe { 09.24.15 at 10:14 pm }

Wouldn’t miss this for Quids!-hope it is enjoyed by all who watch & learn!

16 joanne smith { 09.24.15 at 9:39 pm }

I will be watching sunday night, thanks for the infor….. JSmith

17 Sue Bennett { 09.24.15 at 9:09 pm }

Can’t wait should be co.

18 Anna { 09.18.15 at 8:22 am }

Thank you for giving us such great info. I really enjoy reading your articles. As far as the article above I love seeing the moon when it appears so huge. It reminds me of when I was younger and watched the snoopy Halloween special. I wish more people took the time to appreciate the beauty of the world around us.

19 Susan Higgins { 09.23.15 at 5:43 pm }

Hi Melby Lopez: because this is a lunar eclipse, not a solar eclipse, so they are safe to watch with the naked eye.

20 Melby Lopez { 09.17.15 at 9:46 pm }

How is the safety way to see the eclipse with dark glasses or can be with naked eyes

21 Denise holstine { 09.17.15 at 10:47 am }

I live in Alum Creek West Virginia, I’m hoping that I get to see this!!

22 Denise holstine { 09.17.15 at 10:47 am }

I live close to Charleston West Virginia, little town called, Alum Creek
I’m hoping I get to see this.

23 Diane Gauthier { 09.17.15 at 10:47 am }

Hi! I’m just wondering if Beijing, China and if central Ontario will get the full eclipse of the Blood moon or partial or not at all.

Diane

24 Leticia Metallo { 09.17.15 at 2:52 am }

I will be in Bonaire, 50 off the coast of Venezuela. I believe that would be between eastern standard time??

25 Susan Higgins { 09.23.15 at 5:48 pm }

Bobb: This is a pretty standard graphic that explains what is going on, with the alignment of Sun, Earth and Moon during a lunar eclipse, and sizes and distance are not to scale. It is a drawing, not an actual photograph. Here is another link for you to see (with a similar graphic). http://www.mreclipse.com/Special/LEprimer.html

26 Bobb { 09.16.15 at 10:51 pm }

This is obviously a manipulated a photo that could not put the sun behind the moon to create this silhouette and still have the earth cast a shadow onto the moon. Who is more stupid? You for posting this or so many others viewing this fake and not realizing it?

27 Linda Ganga { 09.16.15 at 8:57 pm }

Always a street to check out your website. Lots to learn and be in awe of.

28 Susan Higgins { 09.23.15 at 5:50 pm }

Gary that’s an interesting question! We can check with the NASA site to see if they have anything on this topic!

29 Gary { 09.16.15 at 1:01 pm }

Does the temperature on the moon drop during the time of the total eclipse when the suns rays are completed blocked?

30 Susan Higgins { 09.23.15 at 5:54 pm }

Leopaul, yes! Most all of us in the Northern Hemisphere will be able to view it.

31 Leopaul { 09.16.15 at 11:32 am }

will Massachusetts be able to see this wonderful show

32 Ileana { 09.16.15 at 10:57 am }

I am in Coral Gables, Florida

Your information is always excellent. Thank you very much!!!

33 Marie { 09.16.15 at 9:16 am }

I think it’s so cool when the sky is clear and being able to see it at it’s closest. The moon just looks so big. It’s not just cool, it’s “IT’S SUPER COOL”. Hopefully I’ll be able to take some pictures this time. The last time it happen, it was cloudy.

Leave a Comment

Note: Comments that further the discussion of the above content are likely to be approved. Those comments that are vague or are simply submitted in order to promote a product, service or web site, although not necessarily considered "spam," are generally not approved.

If you notice a hole in the upper left-hand corner of your Farmers' Almanac, don't return it to the store! That hole isn't a defect; it's a part of history. Starting with the first edition of the Farmers' Almanac in 1818, readers used to nail holes into the corners to hang it up in their homes, barns, and outhouses (to provide both reading material and toilet paper). In 1919, the Almanac's publishers began pre-drilling holes in the corners to make it even easier for readers to keep all of that invaluable information (and paper) handy.

Spring Is Here – Sign Up Today!

The Farmers' Almanac is a gardener's best friend. Get 365 days of access to our online weather and gardening calendars + a copy of the 2017 Almanac
for only $13.99 $11.99!

Subscribe Today »