Andrew

Fireball Over Hualālai Update

Looks like several folks saw this meteor come in, including the entire evening crowd at the VIS. Another report from Kali on Maui emphasizes just how bright it was.

Larry O’Brian reports from the VIS…

The highlight of the evening was unquestionably a spectacular fireball that burned brilliant green, slow- moving, threw off at least one fragment, the whole enchilada. No sound, other than thirty people shouting ‘wow!’ I first caught it around, say, Aquila heading towards Ophiuchus, but people were already calling out about it.

Between Larry’s excellent report and my own sighting I can place this meteor coming in steeply somewhere over or just south of Hualālai. From around the summit to out to sea beyond Kealakekua, much closer than I would have thought. Given the breakup and low altitude the proximity implies there could have been pieces reaching the ground. Anyone in South Kona report something hitting their roof?

Any readers want to join me search an entire 9,000ft volcano for meteor fragments? Spotting dark fusion crusted meteors on top of fresh black a’a basalt ought to be easy… Not!!!

Fireball Over Hualalai

Nice meteor fireball just a few minutes ago. Just as Deb and I were driving down Waikoloa Road, about 8:06pm, due south over Hualalai. It lit up the landscape a bit, very bright, with fragments flying off as it came in.

Given the time, mid-evening with dinner events and Iron-Man festivities underway, I suspect more than a few people along the coast noticed this one.

Green Laser Trouble

Sounds like someone acting very foolishly has pointed a green laser at aircraft around the Hilo airport. Thanks to Baron for noting the HPD press release on the issue. I wonder if there is someone out there who is unaware that aiming a laser at an aircraft is a violation of federal law.

Lasers at the VIS — Green lasers in use at the Mauna Kea VIS nightly observing with the Milky Way high overhead

Green lasers have been in the news quite a bit over recent years, ever since they became inexpensive enough that people buy them on a whim. Lasers in the under 100mW range used to cost hundreds of dollars, can now be ordered on-line for less than fifty dollars. There have been multiple incidents of these lasers pointed at commercial and law enforcement aircraft. Fortunately the usual result is simply distraction for the pilot and no accidents have been reported from laser interference with flight operations.

These lasers are also immensely useful. At the VIS and other local star parties we use green lasers to point out the constellations and to educate our visitors about the sky. There is nothing like being able to point out a specific star, nebula or galaxy directly, you can instantly connect an entire audience with the sky without the usual confusion. Friday night it was a green laser that served as a link to the stars when I used it on the patio of the Mauna Kea VIS.

I use a laser under 30mW, bright enough to be seen by a large crowd, as well as being visible with a bright Moon in the sky, but with a low enough power to be reasonably safe. Above about 50mW these laser pointers become much more dangerous as the laser can inflict injury to the eye faster than you can blink and turn away. Fortunately there is almost no air traffic over Mauna Kea making this a place where you can use the lasers with little worry. Another personal rule I follow is to never let kids handle this laser, even though they always clamor to see this bright wonder of technology.

I can only hope this issue does not attract the attention of our reactionary county council, they have a tendency to ban anything that even seems dangerous. This would be another classic case of one stupid person creating problems for those of us who use a technology responsibly.

A Great Night at the VIS

Last night was the sort of evening we love, and the reason we volunteer at the Mauna Kea Visitor Information Station. One of those nights where the stars seem close enough to touch, we bring them within reach of those who came to the mountain to learn about the universe.

MKVIS at Night — The Mauna Kea VIS at night with a crowd at the telescopes

Conditions were near perfect, a dark, clear sky with no Moon, it would rise later. Not only was it dark, but the air was steady, allowing nice high magnification views of Jupiter and other objects. The air was still, it was cold, but without the wind that can make conditions miserable at 9,200ft. The result was a beautiful night that everyone cold enjoy to the fullest.

Joining us were visitors from around the world, I met people speaking German, Spanish and Czech, a British family living in Japan, and more. About fifty people were to be found on the patio when I did the evening star talk. Not only did they come, but they came with curious minds and a will to learn. The questions came from all sides, fast and furious, a constant stream of information.

With such beautiful sights in the telescope to see, the questions just come naturally. I used a C-14 on the Astro-Physics mount to jump from object to object, the Swan Nebula, the globular cluster of M22, the Andromeda Galaxy, the Wild Duck Cluster, the Ring Nebula, the Dumbell Nebula, Alberio. Everything looked so nice that even as jaded observer, I found myself lingering at the eyepiece to enjoy the view.

The evening was a series of personal conversations with one group or family. I would try to use little vignettes to put the knowledge in context, the shape and size of our galaxy, or the story of star birth and death. Trying to convey, in a few minutes, a little glimpse of a bigger picture and not just a mess of gee-whiz information. Sometimes this works, and you are rewarded with a moment of connection, where your audience suddenly understands.

That is what we come to the mountain for.

Starcrossed

A fun little film. You will have to watch it through to understand the twist at the end. Though it can be done more easily than they make out…

Waimea Planet Walk

Waimea was living up to reputation with a gusty wind and blowing mist. But this did little to dampen the Waimea Planet Walk sponsored by Keck and CFHT Observatories. A steady stream of parents and kids walked the length of the main street to visit the booths representing a scale model of the solar system.

The Sun and the inner solar system… Mercury, Venus Earth and Mars, all occupied the lawn directly in front of the Keck lobby. Each location was measured properly to achieve the correct position, each booth had a scale model of the planet to correctly interpret the scale of the entire solar system. This meant the Sun was about 8 inches (20cm) in diameter and the Earth a small dot mounted to a piece of wood. In the far corner of the Keck lawn, several hundred feet from the Sun, sat Jupiter represented by a 1/2-inch (1cm) ball bearing.

To visit the remainder of the solar system it was necessary to walk down Mamalahoa highway. Saturn sat in the upper corner of the KTA parking lot, beside the historic cemetery. Uranus was located in the lower corner of the KTA parking lot. Neptune in the park across the street from the library. At the end of the walk, Pluto and the rest of the TNO’s in the lawn of CFHT.

Everyone, volunteers and guests, seemed to be having a great time learning. All up and down the street walked parents and kids from station to station. It is always interesting to see the entire solar system represented to scale like this, even if you have seen it before. The experience is the first step to seeing just how big space is…

Alaska 2009 – The Video

Three weeks of photographic effort, literally thousands of photographs to select from. It is difficult to put the experience into words, hopefully around one hundred of the best photos and a few minutes of video set to music will convey the trip better than pages of text can manage.

About two thirds of the photographs are mine, the others from one of the seven other cameras that were present on the trip in the hands of other family members and friends. Editing the video was not a short or easy process, but the result is fairly good. Hit the full screen icon to see it in full resolution, this is the first properly HD video I have put together. The Vimeo version does exhibit some encoding artifacts, the original 720p HD versions are simply beautiful.

Three weeks of traveling some of the most beautiful landscapes on the planet is something best experienced by being there. Short of that, this is the best I can manage…

A Touch of the Wild – Alaska 2009 from Andrew Cooper on Vimeo.

Alaska Roundup

It is over, an odd and melancholy feeling pervades. After three weeks out the boat begins to feel like home, leaving it a sad thing. But we are also ready to go back to our regular lives, which are not really all that bad in Hawai’i. Looking forward to seeing friends and getting back into the swirl of the life we have built on the island. I return to the observatory, with a major project coming to a peak with the delivery of the K1 laser. Deb has gotten a call from the school, they want her back for the next school year.

Nordic Star in Ford's Terror — The Nordic Star anchored in Ford’s Terror while we explore

It is just the trip in between which promises to be a real pain, too much luggage and a very long layover in Seattle await. We are still in the hotel in Juneau, checked out of the room, but with hours to kill before the flight. At least I still have WiFi connectivity to do a little blogging from a conference room just off the lobby.

Three weeks on the water. Three weeks of beautiful weather, whales, halibut, icebergs and fantastic scenery. Hard to think of how the trip could have gone better, maybe a few more fish caught?

Week one was spent mostly touring with just enough fishing to eat and a little for some friends to take home. We headed south from Juneau to the fjord of Tracy Arm to dodge icebergs for a day. From there it was further south around the end of Admiralty Island. As we passed the Brothers Islands there were whales, both humpback and orca everywhere, also sea lions and porpoise. Up Chatham Straight we stopped at Barnof Hot Springs and one of my favorite places, Tenakee Springs.

Continue reading “Alaska Roundup”

Back On Line

Three weeks without a connection! Over now, a WiFi fix available from the hotel in Juneau. I have deleted the couple dozen spam comments that leaked through the filters and loosened the comment rules again.

Be a bit before regular posting resumes, have a couple days of travel in front of me yet. I think there are a few more scheduled posts to tide the blog over.

Now on to the 645 emails stacked up…

Postcard from Alaska – Salmon Run 2

Standing in the rain watching the fish. If you do not move for a few moments the salmon seem to ignore you and begin crowding the shore in an attempt to get up the creek. The mass of fish fills the mouth of the stream as each attempts to take the barrier of the first cascade under the highway bridge.

Those that have already spawned, or for whom the effort proved too much litter the gravel bar beyond where we stand, dead fish at the end of their life cycle become the nourishment that will enable other life to flourish. The nutrients of the deep ocean delivered to a gravel bar in Alaska to feed ravens, eagles, bears and more.

Salmon Run — Deb watching a salmon run at Sheep Creek south of Juneau, Alaska