Tag Archives: lunar eclipse

Seattle Astronomy turns nine; our favorite stories of the year

We’ve been at this for nine years now! The first post on Seattle Astronomy happened January 11, 2011. It’s been a fun ride! On our birthday we’re looking back on our favorite stories of the last 12 months.

Moon landing anniversary

Apollo 11 Command Module Columbia

The big story of 2019 was the 50th anniversary of Apollo 11 and the first human landing on the Moon. We had quite a lot of activity around the anniversary. The best had to be the Destination Moon exhibit at the Museum of Flight, which included the command module Columbia that carried Neil Armstrong, Buzz Aldrin, and Michael Collins to the Moon and back. We wrote about the Seattle exhibit, and were fortunate enough to have seen it in St. Louis during the summer of 2018.

We did a series of talks about the Moon landing for Tacoma Public Libraries, reviewed Dr. David Warmflash‘s fine book Moon: An Illustrated History (Sterling, 2019), made a lunar reading list, and heard an interesting talk by UW astronomy professor Toby Smith about an almost accidental discovery from Apollo 11 that gave us new insight about the formation of the Moon.

AAS visits Seattle

Gregory Laughlin
Gregory Laughlin, astronomy professor at Yale, gave a talk about ‘Oumuamua Jan. 7, 2019 at the 233rd meeting of the American Astronomical Association, held in Seattle. Photo: Drew Dettweiler.

Every four years the American Astronomical Society meets in Seattle, and 2019 was one of those years. Our favorite session of the meeting was a talk by Yale astronomy professor Gregory Laughlin about ‘Oumuamua, the strange interstellar visitor that whizzed through our solar system in late 2018. Our article also included information from  Ka’iu Kimura, executive director of the ‘Imiloa Astronomy Center in Hilo, Hawaii, about how objects discovered by instruments on the islands are being given Hawaiian names.

We’d love to cover more such events even when they’re not held in Seattle. Your support with a subscription through Patreon can help bring that about. Please consider contributing; even a dollar a month will bring us closer to being able to support travel to events of interest to the astronomy community.

Meeting David Levy

David Levy
Seattle Astronomy’s Greg Scheiderer (left) visited with comet hunter and author David H. Levy at the Seattle Astronomical Society banquet Jan. 27, 2019.

The year started off well with a chance to chat with David Levy, author and comet discoverer who was the keynote speaker at the annual banquet of the Seattle Astronomical Society last January. Levy gave an engaging talk about his life and his love of astronomy and writing.

This year’s SAS banquet is coming up on January 25. The guest speaker will be meteorologist and astrophotographer Kerry-Ann Lecky Hepburn, who has had a number of her shots featured on Astronomy Picture of the Day.

Observing highlights

Lunar eclipse
Lunar eclipse of January 2019. Photo: Greg Scheiderer.

Our final two favorite stories of the year involve a couple of observing opportunities, one of which was successful, the other maybe only kind of so!

Back on January 20, 2019 there was a total lunar eclipse. Contrary to our usual weather in January, we got a clear evening and the eclipse was visible from Seattle. It was a good show!

The next total lunar eclipse possibly visible from Seattle will be in May of 2021.

The semi-successful observation was a try at a rare transit of Mercury across the face of the Sun on November 11, 2019. In our story we describe waiting out a possible look at the transit through insistently cloudy skies that morning. Finally there was a Sun break, just minutes before the transit was to end. I thought I caught a fleeting glimpse of Mercury just before it cleared the Sun’s disk, but then, Mercury being speedy of foot, was gone. I and a group of interested folks to gathered at Seacrest Park had fun anyway. We successfully viewed a Mercury transit from there in 2016. The next visible from Seattle won’t happen until 2049.

That’s our recap of the year. We look forward to our tenth anniversary celebration 12 months hence!


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Total lunar eclipse visible from Seattle

Seattle astronomy buffs are downright pessimistic about seeing celestial events, even those that happen during our good-weather months. (And we have them.) Thus in the week before the total lunar eclipse of January 20, 2019, I posted this on the Seattle Astronomy Facebook page.

Amazingly enough, at about mid-day on eclipse day the clouds actually did begin to part a little, and a check of the Seattle Clear Sky Chart revealed a prediction that we’d have just 30 percent cloud cover come eclipse hour, and that it would be downright clear late in the evening.

One learns not to trust these things, but when the full Moon actually got up above the trees and into a clear sky out back of Seattle Astronomy headquarters, I decided this was going to happen and hauled the telescope out of the basement and onto the back deck. As the eclipse began I snapped a quick photo in order to express my amazement.

I am not an astrophotographer, as people who evaluate the entries for the Seattle Astronomical Society‘s quarterly photo contest always remind me. This one was shot with my smartphone, though when using it with the telescope I find it devilishly difficult to get the proper aim through the eyepiece (must pick up one of those gadgets from Cloud Break Optics soon.) My other “astro” camera is an old Canon Powershot A530, which is pretty easy to just stick up to the eyepiece and shoot.

I used the phone to get a pretty OK, if somewhat pixellated, pic at totality, too.

Interestingly enough, I found that the color of the “blood Moon” wasn’t quite so pronounced through the telescope and camera is it was in my naked-eye view. I think the magnification diffuses the color a bit, and the camera isn’t really made for that sort of work.

Even my sweetie, who is not normally prone to looking through telescopes at night in January, or any other month, for that matter, went out quite a few times for a magnified look, and we both spent most of the eclipse watching from a warm environment inside behind the glass of the French doors.

I hope you got a chance to see the eclipse wherever you were. The next one visible in Seattle will happen in May of 2021.

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October is eclipse month

The new issues of Astronomy and Sky & Telescope magazines arrived in the mail over the last couple of days with reminders that a couple of cool events should be visible from Seattle in October. There will be a total eclipse of the Moon in the early morning hours on October 8, and a partial eclipse of the Sun in the afternoon on October 23.

The lunar eclipse October 8 will begin in Seattle at 1:15 a.m. Pacific Daylight Time with the onset of the faint penumbral eclipse. The real show starts about an hour later when the Moon enters Earth’s umbral shadow. The eclipse will reach totality at 3:25 a.m. and the Moon will remain in complete shadow for just under an hour. The umbral eclipse will be over at about 5:35 a.m.

As an added attraction during the eclipse, the planet Uranus will be close by the shadowy Moon, passing about one degree south of it during the event. You will need binoculars or a telescope to spot Uranus, which is at the best point for observing it this year. It will reach opposition to the Sun October 7, and thus is up all evening and is at its closest to Earth.

Animation showing the moon’s penumbral shadow sweeping from west to east across the Earth’s surface on October 23, 2014.

Animation showing the moon’s penumbral shadow sweeping from west to east across the Earth’s surface on October 23, 2014.

The partial solar eclipse October 23 happens at a much better hour for those of us in the northwest. In Seattle the eclipse begins at 1:35 p.m., will reach its maximum at 3 p.m., and be over at 4:20 p.m. All times are Pacific Daylight Time.

It is not all that unusual to see a partial solar eclipse, but this should be a particularly good one, as about 64 percent of the Sun’s disk will be covered by the Moon from our vantage point.

We’re lucky to be in Seattle, as the eclipse will cover more of the Sun the further north you go. The maximum for this eclipse is some 81 percent up in northern Canada. On the other hand, we’re unlucky to be in Seattle, as we average only five clear days during October, when the Sun’s rays reach us during only about 37 percent of daylight hours. So we’re rolling the dice a bit when it comes to actually having breaks in the clouds so that we can see the eclipse. Ever the optimists, we note that October is not our worst weather month, and we have the dates for both eclipses marked on our calendar.

Please remember never to look at the Sun without proper eye protection. The eclipse glasses at right are a good a low-cost choice. They and a number of other options are available from the software and accessories section of our Seattle Astronomy Store. If you’re using a telescope or binoculars, make sure they’re fitted with solar filters; looking at the Sun through an unfiltered magnifier can cause serious eye damage in a big hurry. If you don’t have the right equipment, it’s a good bet to try to find out if an astronomy club near you plans a viewing event. As of this writing, we know that the Tacoma Astronomical Society plans a free public solar eclipse watch at Pierce College and the Pierce College Science Dome. We know of no others at the moment, but imagine that plans will be made in the coming weeks.

Seattle Astronomy will probably be out somewhere about town with our telescope and some solar shades if the weather looks favorable on eclipse day. We’ll keep you posted about our plans.