I have cobbled together a pinhole camera out of two Amazon.com boxes (one at first, but the image was too small), a piece of paper, a piece of foil, and a lot of packing tape. The test run looks good: The image isn’t that big, maybe 3/8 of an inch, but I was able to see the shapes of clouds as they drifted in front of the disc, so it should be sharp enough to show the eclipse.

Since I was building it around the same time of day that the eclipse will be happening, now I know what the sightlines are going to be like. I’ll definitely have to go somewhere less obstructed, probably somewhere higher in case the clouds roll in tomorrow. Update: I did.

Just yesterday, I had no idea there was going to be a lunar eclipse this morning. Then I skimmed an article somewhere and got the impression it was only going to be visible on the east coast, And then I read about it on Bad Astronomy and realized I had it backward. Not only would I be able to see part of the eclipse, but I’d be able to see the moon in totality! All I had to do was get up early in the morning and find a place with a clear view of the western horizon. I considered driving down to the beach at 5am, but thought I’d start out by seeing how visible it was from home. As it turns out, I should have gone to the beach to start with, but I had some good viewing before I left.

So I set my alarm, woke up at 5am (plus the snooze button), and went out to see what I could see. To my surprise, I actually had a decent view of the partially-eclipsed moon from across the street. It was about half-covered at this point (as shown in the first photo above). So I stayed out there for a few minutes deciding what I wanted to do, went back in to have some coffee and breakfast, then went back out shortly before 6 to watch as the umbra covered the disc the rest of the way. I found it interesting that it didn’t look particularly reddish this time, just brown.

Awesome viewing, though it was clear the moon would dip below the roofs of the houses soon. I needed a less obstructed view.

As soon as the moon went into totality, I went back inside, woke up Katie just enough to let her know I was going, tossed the rest of my coffee in a travel mug and hightailed it down to the beach. Continue reading

I found this while looking through a box of old photos, in an envelope marked Lunar Eclipse and developed in June 1994. Most likely the May 25, 1994 eclipse.

I’m not sure, but I think the bright splotch near the bottom is actually the moon, and the clear image of the moon up near the top is a reflection inside the camera. I have no idea whether the ring is an atmospheric phenomenon that got picked up on the film, or just lens flare.

Update: It was most likely taken with a point-and-shoot fixed-focus 35mm camera (though I had an SLR by that time that my grandfather had given me, so I’m not sure why I wouldn’t have used it). But even if it’s a really messed-up picture of an eclipse, it’s still an interesting-looking picture, IMO, which is why I scanned it.

Today’s Astronomy Picture of the Day features a view of Mauna Kea’s shadow on the sky, just at the tail end of last week’s lunar eclipse:

Mauna Kea Shadow from APOD (photo by Alex Mukensnable)

I couldn’t help but be reminded of our visit to the summit in April 2005, just at sunset, when I took this similar (but decidedly less cool) photo:

Atmospheric Optics explains why most mountains’ shadows look triangular when viewed from their summits.

I’ve driven 500 miles in the last 2 days. We’re heading up to San Francisco for WonderCon this weekend, stopping along the way to visit friends in Silicon Valley and my brother and his fiancee in San Francisco. We ended up with an extra day at the beginning of the trip, which we used to visit Hearst Castle.

We left around mid-morning on Wednesday, driving through 2 hours of crappy Los Angeles traffic until things finally cleared up out toward Ventura. Along the way we saw something we’d never seen before: Our Prius runs in part on a battery, which is recharged by the gas engine, by coasting, and by braking. It has an 8-bar battery gage that mostly moves around in the 2–7–bar range. Heading down the pass into Camarillo, for the first time, I saw it fill all 8 bars.

We took the 101 most of the way, branching off at San Luis Obispo to take Pacific Coast Highway up to San Simeon. With all the rain we’ve had this winter, the countryside is amazingly green. The last few times I remember taking the 101 up the coast, it was summer, so the hills were all golden brown. We lucked out with the weather: instead of the constant rain I was expecting from the forecast, we only had scattered showers.

We spent Wednesday night in San Simeon. Dinner was at a restaurant called The Sow’s Ear in Cambria, which was very good.

Blurry Lunar Eclipse through cloudsWe actually managed to see the lunar eclipse. Sort of. The cloud cover was just light enough to see the bright sliver shortly before totality. It screened out the reddish light completely. I have a blurry picture of the just-as-blurry eclipse.

Neptune Pool at Hearst Castle.Thursday morning we went to Hearst Castle for the morning’s first tour. We didn’t get the one we wanted (Tour 2) because it didn’t start until 9:20, and we wanted to get to San Jose by 5:00. If I could make one change to their website, it would be to list actual tour times. We got rained on a bit, but it was a good overview of just how eclectic the house is. Basically, if William Randolph Hearst was traveling and saw a piece of a building that he liked, he’d buy it, ship it back to California, and have it built into his house.

After stopping briefly in Cambria, we took highway 46 across the hills to catch up with the 101 and head north to San Jose. Partly I wanted to avoid the long, twisty, cliffside stretches of PCH, and partly we wanted to avoid getting caught in the bike race. The route goes past cattle ranches, empty hills, and wineries. At one point there’s a fantastic view of Morro Bay off in the distance. (Update: We took the same drive a year later and caught the view in the sunlight)

View of Morro Bay and Morro Rock from Highway 46
We made it to San Jose around 4:30, and managed to get tickets for the last tour of the Winchester Mystery House. Yes, we toured two big, rambling mansions in one day. It was interesting to compare the way the tours treated the two places. With Hearst Castle, it was very much a museum tour. Everything was preserved as exactly as possible, including all the furniture and decorations, and they admonished you not to touch anything. And the docents were walking encyclopedias. With Winchester, it was much more casual. The speeches felt more canned, and the tour guide wasn’t concerned with anybody touching anything except for a few places where the floors or tiles were still original.

After the tour, we met up with our friends for dinner. I don’t remember the name of the place, but it was a tapas restaurant on Santana Row. Also quite good. Edit: Katie points out that it was called Consuelo.

Tomorrow: On to San Francisco. Not sure whether we’re going to WonderCon on Friday or not—it depends on what else is available (since they keep promising massive downpours of rain)—but we’ll definitely be going on Saturday. For one thing, I’m hoping to get to the premiere of Justice League: New Frontier. I really liked Darwyn Cooke’s original mini-series linking the dawn of the Silver Age and the dawn of the space age, and what I’ve seen of the animation style looks quite promising.

OK. It’s 11:30. Time to get some sleep.

Update: filling in a few pictures.

Continued in: Saturday/WonderCon and Friday–Sunday