We have several murals on display at the Observatory for those with time to look around. That includes ol’ Helios here, with a real Mona Lisa smile going on.
It’s Always Sunny…
Tag: observatory
Leonids
Ninety years ago, during the Leonids meteor shower, someone was counting a lot of burning bits of debris from comet 55P/Tempel-Tuttle. With one fifteen-minute window boasting forty-five meteors (!), that’s a powerfully active shower. Not quite a storm, but those happen with the Leonids sometimes.
According to NASA, the Leonids peak about every 33 years, with 1966 being a spectacular meteor storm. In one fifteen-minute window, thousands of meteors fell like glowing rain. How amazing is that?
Also: check out the times indicated. We’re assuming the counting started at 11:00pm and ran until early morning, with a 24-hour clock opposite how we’d expect it. (Maybe sleep deprivation?) Either that or it was a truly spectacular meteor shower!
Aurora Borealis
Wow. Just, wow.
View From the Dome
Currently, it’s the season for birds to nest in odd cracks and corners, necessitating regular cleanouts until they or we give up. At least the view’s a nice one on a good day.
Radio Telescope Repair
After enough years of outdoor UV exposure, temperature fluctuations, and who knows what all else, most plastics start to break down. The thin support ring – looks like polyethylene of some sort – has started to crumble, and the radio telescope’s nose cone is hanging loosely.
Inside, the receiver and amplifier appear to be in good enough shape. Note that many birds and many bugs have made a real mess of things.
And they’ve built an astounding nest inside. Dried grass, last year’s hydrangea blooms, torn bits of plastic bags, some shredded paper, a few ripped-up bits of surgical masks. Removing all of this did not endear us to the starlings.
The plastic solution worked for a while, but it’s time to up our game. Aluminum brackets, precisely machined out of solid blocks, drilled and tapped for stainless steel hardware. Bright and shiny and destined to be hidden away from view.
And then, with summery Pennsylvania weather on the horizon (read: thunderstorms), we seal the whole mess up with duct tape. Maybe it’ll deter the birds until we can deal with the rest of it some fall.
The most amazing part is that we didn’t end up using hot glue.
Construction Photo
Six decades ago, there wasn’t much on the south end of campus, making it an ideal place for the new Observatory. Relatively calm, not much to block the view, and few sources of nearby light pollution. A lot can change in that time.
Today’s maples and oaks – not pictured, because they were maybe saplings? – are now large enough that they block some low areas of observation and are losing limbs due to disease and age. The stadium has been wreathed by parking lots and festooned with high-intensity lights. Campus buildings have crept southward, surrounding the site. Lewisburg and its surroundings have developed, installed more nighttime lighting, and the sky has grown brighter, obscuring more of the night sky.
Clouds, however: they’re here as much as they ever were. Oh, central Pennsylvania.
Wind Speed Indicator
This particular wind speed indicator hasn’t been functional in ages, but at some point it was probably useful in determining whether or not to go outside for telescope observations. Wind is of concern in astronomy, as it can produce poor seeing and – when really strong – cause telescopes to shake. But wind chill is the more immediate concern. Cold nights can be good for observing, with clear skies and good seeing, but rough on fingers and toes.
All of that standing still, lack of warming sunshine, etc. doesn’t do a lot to counter a cold night. Maybe think ahead and bring along a hot beverage?
An awful lot of that chart is devoted to conditions when no one should be outside at all. One line of thought considers that a chart with all of your category indicators bunched up on the left isn’t the ideal for communicating information visually. Another notes that an endless tundra of negative numbers tells you enough without needing the particulars.
Single Pane Glazing
The Observatory’s windows have but a single sheet of glass, which leads to some impressive wintry displays when the temperature differential is just right.
Ranger 4
We have several boxes of NASA press releases from the height of the space age, for the simple reason that it’s easier to pack things away than to sort and dispose of junk. None of them are worth much, really, but they can be entertaining. Take this, for example, a summary of the Ranger 4 launch. Not mentioned here, but interesting: Ranger 4 was the first US spacecraft to reach another solar system body.
By crashing into the Moon, as intended. You can read more in a brief summary by Leonard David, or by skimming Wikipedia.
Entertaining bits gleaned from the Space Activities Summary:
- “Major Objectives Impact Moon”
- “Major Results Impacted Moon”
- Velocity is listed as “At lunar impact, 5,963 mph,” but can safely be assumed to be zero very shortly thereafter.
- The “rough-land survivable seismometer” likely didn’t, although the fact that it crashed on the far side means we’ll never know.
- There may have been “[n]o scientific data obtained,” but they did slam a space probe into the Moon, and before anyone else.
Big Dipper
A surprise discovery on a hallway bulletin board at the Observatory: a push pin Big Dipper!
It’s good and charming and subtle, and we can forgive that this version has eight stars instead of the night sky’s seven. (Not counting the visual double of Mizar and Alcor where the handle kinks.) Someone did this on a whim, and now it’s hard to resist the idea of putting up others all over campus to see who notices.
Have a great semester break!