Author: Andrew

An electrical engineer, amateur astronomer, and diver, living and working on the island of Hawaiʻi.

A Premiere

Tomorrow night will see the premiere of my latest work. Over the last few months I have been assembling a video on Keck titled Keck in Motion. The nice part is that the first public screening will see the video on a big screen indeed… The showing will be at the Kahilu Theater. It will be run as a introduction piece before the Keck lecture

The video has seen the usual creative cycles during production… Enthusiasm followed by disillusionment, in alternating phases. Despite some doubts along the way, I have to admit the final version is not all that bad. Everyone who has seen it uniformly gives great reviews, but as the author, I see all the flaws and things I could improve. Whatever reservations I might have, the time has come to simply say… It is done. I have turned over copies to Larry and Mariko, ready for projection on a big screen tomorrow night.

The video has been seen a couple private showings to a selected audience. In particular it has been seen by the guys on the summit crew, many of whom appear in the video. Some bits of the video have been seen here before, particularly the three lasers sequence. Some of the material was stuff I had accumulated across the years, many pieces were custom shot to complete the project. Somehow it works into a very nice narrative and a complete story in three minutes, thirty-six seconds.

Look to see the video posted here after the premiere. Peeking at my Vimeo account will not help, I have not uploaded it yet. I suspect it will get spread around a little, used for Keck PR. It does show what a special place Keck is. Better yet, it highlights the hard work it takes to keep Keck on-sky every night. Because of that, this video is dedicated to the guys of the summit crew.

Lasers 3 over Mauna Kea from Andrew Cooper on Vimeo.

Reminder – Keck Lecture Tomorrow

Tom Soifer
Seeing the Invisible Universe

Kahilu Theater
Thursday, February 9
7:00pm

Astronomy is enjoying a golden age and the W M Keck Observatory is a world leader in cosmic exploration. With generous support from Rob and Terry Ryan, Keck Observatory invites you to take a journey beyond this world to the frontiers of discovery. Your guides are Keck’s astronomers. They will bring you a rich and varied Universe and an evening filled with beauty, drama, mystery and surprise.

Tom Soifer is professor of physics at the California Institute of Technology and the Director of the Spitzer Science Center. He is also the Chair of the Division of Physics, Mathematics and Astronomy at Caltech and a member of the Board of Directors of the W. M. Keck Observatory. The Spitzer Space Telescope is NASA’s latest Great Observatory, designed to explore the infrared portion of the electromagnetic spectrum. Spitzer was launched in August of 2003. In his talk, Soifer will describe some of the most exciting results from the Spitzer mission, among its many discoveries have been measuring the thermal emission and spectra from hot Jupiters orbiting other stars, finding “Fullerene (buckyball)” molecules in space, observing prebiotic molecules in galaxies seen less than 3 billion years after the big bang, and measuring the masses of the most distant and youngest galaxies known.

There is no charge for admission to any events in the Makana series.

Presented by W.M. Keck Observatory.

Venus and Uranus

Over the next few night Venus will pass very close to Uranus. The pair will be close for about five days, around 2° or less from the 7th to the 11th. It is on the 9th that the closest approach will occur with the pair separated by a mere 19 arc-minutes, about 1/5th of a degree and well within the same medium power telescopic field. This a is chance to find the ice-giant with relatively little effort, there will be no nearby bright stars to confuse with the 5.9 magnitude Uranus. At high magnification both planets will be seen as disks, Venus 16 arc-seconds across, and Uranus a bit over 3 arc-seconds across. Venus is now far enough between the Earth and the Sun to become somewhat gibbous, being about 70% illuminated.

An Unusual Breed

I have often noted how much many of the boulders around Waikoloa look like animals. There is one rock along the upper road that looks precisely like a cow when seen from the side at any distance. Just a natural remnant of these old Mauna Kea lava flows.

It is no surprise that most folks have the same observation, some of these rocks just look like cattle, all they need is horns?

A serious laugh-out-loud, try not to drive off the road, moment when I first saw them. Someone had indeed added some horns to the rocks. Not little horns either, but big Texas longhorn style horns. Halfway from Waikoloa Village to the Mamalahoa Highway, you can see a herd of a truly unusual breed. Perhaps the rare Waikoloa Basalt Angus?

Closer examination of the horns reveals that they are well made. Heat worked PVC pipe for the horns, tightly wrapped with rope and painted at the center. The horns are held on with heavy cable neatly crimped around the boulders.

Another surprise, the artists have signed their work, the names Ed Vasquez and Bill Bezona melted into the plastic. We have seen Ed’s art before, birds and other odd creatures appearing along local roads. We had seen nothing for a while, this is the first installation I have seen in about a year.

Nice job guys! A little fun along my morning commute.

Waikoloa Basalt Angus
A unique breed, the Waikoloa Basalt Angus at pasture, an artwork by Ed Vasquez and Bill Bezona

Mars Opposition 2012

About a month from today, on March 3rd, the planet Mars will pass through opposition.

Mars orbits the Sun every 1.88 years, with Earth only taking one year for each orbit. Like two runners on a track the two planets race each other around the Sun. But we have the inside lane, lapping the red planet every two years. These events are called opposition, when Mars is closest to us and best positioned for viewing by earthbound telescopes.

Closest approach of the two planets is not necessarily on the same day as opposition, but can vary up to two weeks. This year closest approach will occur March 5th with the two planets approaching to 99,331,411 km (61,721,554 miles) at 07:01HST.1 At this distance the red planet will show a disk 13.89″ arc-seconds across in the eyepiece.2

Mars during the 2005 oppositionMars during the 2005 opposition

Do not worry about viewing on the 3rd or 5th, any time in the month leading up to and after opposition the viewing will be very good. With even a modest telescope it should be possible to see the bright polar caps and light and dark markings on the planet.

All month Mars will be visible throughout the night, high in the sky at midnight. This is the time to enjoy observing our closest neighboring planet while it is nearby and high in the night sky.

1) 2012 Mars Opposition at SEDS
2) The 2012 Aphelic Apparition of Mars

Super-Earth Detected in Habitable Zone of Nearby Star

W. M. Keck Observatory press release…

An international team of scientists has discovered a potentially habitable super-Earth orbiting a nearby star. With an orbital period of about 28 days and a minimum mass 4.5 times that of the Earth, the planet orbits within the star’s “habitable zone,” where temperatures are neither too hot nor too cold for liquid water to exist on the planet’s surface. The researchers found evidence of at least one and possibly two or three additional planets orbiting the star, which is about 22 light years from Earth.

The researchers used public data from the European Southern Observatory and analyzed it with a novel data-analysis method. They also incorporated new measurements from the W. M. Keck Observatory’s High Resolution Echelle Spectrograph (HiRES) and the new Carnegie Planet Finder Spectrograph at the Magellan II Telescope. Their planet-finding technique involved measuring the small wobbles in a star’s motion caused by the gravitational tug of a planet.

The team includes UC Santa Cruz astronomers Steven Vogt and Eugenio Rivera and was led by Guillem Anglada-Escudé and Paul Butler of the Carnegie Institution for Science. Their work will be published by Astrophysical Journal Letters, and the manuscript will be posted online at arxiv.org/archive/astro-ph.

The host star is a member of a triple-star system and has a different makeup than our sun, with a much lower abundance of elements heavier than helium, such as iron, carbon, and silicon. This discovery indicates that potentially habitable planets can occur in a greater variety of environments than previously believed.

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