English Island

[F.W.] A comet of cooperation

[[Image: Lulin-Sky-Survey/ck07n030_20070711.png|500|Comet Lulin at discovery, the truth is here...]] 

Earlier this month a newspaper reported a discovery by professional star-gazer Lin Chi-sheng of the Lulin Observatory in Nantou, Taiwan. Lin had discovered (Comet) C/2007-N3 -- a massive lump of ice and rock "kilometers" in diameter. On Feb. 27, 2009, the comet is scheduled for a near earth fly-by, getting as close as 60 million kilometers away from our planet and becoming visible to the unaided human eye. The newspaper went on to claim that this discovery was the first such find by local astronomers -- and that Taiwan is now "on the map" in the global astronomical community.

We salute Lin Chi-sheng and congratulate the entire team at the Lulin Observatory in the central county of Nantou on the discovery of the "Lulin Comet." The patience and devotion required for thousands upon thousands of hours of sky-watching -- mostly without reward -- is highly commendable. But, it would be nice if we gave full credit where credit is due.

Many in Taiwan cheered the news of a local find. The tone of the report and even the headline of the newspaper article were filled with nationalist sentiment, "Local Star-Gazer Discovers Comet," it declared. But buried a bit toward the back of the report came a surprising detail: the find would not have happened without the aid of Taiwan's arch-rival mainland China.

Astronomers from China and Taiwan have increased collaboration in recent years. Since many observatories in China do not possess as high-powered telescopes as we have in Taiwan, Chinese astronomers do their part in a deal of cooperation by selecting areas of the sky for the Nantou-based Lulin Observatory to watch and photograph. Lin himself actually told reporters it was Chinese participants who first detected the "Lulin Comet" and a smaller near-earth asteroid (NEA) in the photographs.

The highlight of this story is one of successful collaboration. For once, Taiwan and China set aside their half-century old political dispute and worked together to actually assist humankind. This wonderful story of cooperation, however, was mainly lost in the self-congratulatory tone of the local media.

Instead of trumpeting the help of the Chinese, some local papers buried the China connection at the end of the article and did not include this info in headlines or decks. It would seem disingenuous for the Taiwan reports to label the find as "local" when the reality is that without major Chinese help, the discovery would never have been made.

A mature person working on a problem welcomes all whose ideas contribute to a solution, and upon finding one, dishes out praise accordingly and unstintingly. So should it be with mature nations. As the planet shrinks ever smaller under the effects of globalization, cooperation and collaboration will become the watchwords of the future, not individualism or jingoism. Taiwan's media should endeavor to praise cooperation and refrain from downplaying the contributions of others.

-- China Post, August 1st, http://www.chinapost.com.tw/editorial/2007/08/02/116720/A-comet.htm

Well, there will be always the right persons and the heaven who know the truth, an interesting story always have some odd things. Comet of Politic may be a better name than Comet Lulin. Those are not important, personally, I'm happy to see they call me "astronomer" ;-)

2007 NL1: All luck but luck

[[Image: Lulin-Sky-Survey/k07n01l_20070711.png|500|2007 NL1 at discovery.]] 

I rarely write blog in English but today due to some reasons I'll do it, the reason is quite unusual: an asteroid, but the asteroid is quite unusual too, it's a Near-Earth Asteroid. That boy, 2007 NL1, became the first NEA I have got.

Long long stories of discovery could be reduced to a sentence: I scan, I spot, I found. I won't repeat this routine but will just mention two interesting spots during the discovery.

Spot 1: To be or not to be...

It seems pretty fine for me that all big surveys are off from work this dark run, but I just didn't get lucky. Our survey detected five NEOs in three nights -- a new record ever, but all of them are known -- include those very promising R~20's! Lord. So when I saw another detection on afternoon of July 12, all I thought was: "another known one, dot."

But usual checks went on.

"So that boy is a new one?" Out of the expectation and within the expectation, I asked myself. Well, possibly something simply went wrong. I had been chased those "NEOs" three or four times, stayed up for several nights, and later they turned out to be a-little-unusual main-belts. But a thing moving at 1.5 degree per day can't be anything. I checked again.

Indeed something went wrong, I had examed a wrong one. *That* boy called YQ00uR, not YQ00uS. I have to check for knowns again. But still no known ones turn out.

My heart was beating fast. The "one" finally comes.

Spot 2: Big surveys, where are you?

I never thought I'll miss the big surveys, I always regard them as big rivals, but on July 13 I found myself missing them!

YQ00uR was running quickly in the sky and the uncertainty area kept growing. July 12/13 nights were cloudy and I could do nothing but writing "help needed" mails. All surveys were off for holiday due to monsoon season on southwest United States except Siding Spring Survey in Australia, so it seems Siding Spring is my only option. Dr.McNaught replied my mail very quickly, and the answer was simple: cloudy. Then I look for other helps: Peter Birtwhistle at United Kingdom, Reiner Stoss at Spain, Jean-Claude Pelle at Tahiti Island, and they were all not okay with the rock.

Well, real problems occured. Seems I have to do anything to secure the rock on July 13/14 by myself. I spent a whole afternoon for observing design, then went to bed on around 7 p.m. On the morning of July 14 I have to cover dozens of arc degrees to catch the boy.

I dreamt I was searching for a little rabbit in a big big forest.

On 1 a.m. I got up. Jean-Claude told me the sky became clear at Tahiti and he was hunting. "I'd better secure the boy myself." I thought, then I began. There were 16 fields, coded Field 1 to Field 16. It would take 2 hours to fix, and they covered all the uncertainty area. "It won't lost..." I encouraged myself, "I still have one extra hour if all these 16 attempts are failed." Then I download image sets of Field 1, they were just finished.

Guess what happened? A faint, fast moving dot at the center of the images! I combined it with the observations on July 11 -- very fit! It's a nice Apollo.

I can't believe my eyes. The boy was done in such an easy way! I could just said I have been lucky.

I got up at 10 a.m. and the sun was high in the sky, the rock -- 2007 NL1, has been published in Minor Planet Electronic Circular. I also learned Jean-Claude had spot the asteroid too, a few hours earlier than me, but he reported it later than I did.

And so the big surveys are big rivals again ;-)

Astronomy Tale: "Ah Nuts!"

On one starry night at Kitt Peak, the Advanced Observing Program was well underway. After setting the camera up to begin imaging our first object, I instructed the telescope to slew towards its final destination. After a few moments I heard sounds which elicit dread in the hearts of telescope operators everywhere. The strange noises began with a soft “bink clink clink clink” and ended with mysterious “somethings” falling to the floor with a definitive “plit plot!” Not wanting to look concerned in front of the paying customer; I silently held my breath and illuminated the floor with a flashlight. I fully expected to see small sprockets and gears glistening beneath my feet- but no hardware was there! I did find something though. Scattered on the floor were small acorns and I had no idea from whence they came! In disbelief I randomly moved the telescope in Right Ascension and, sure enough, more acorns fell to the floor. Inside the hollow of the east fork arm I found a collection of a dozen acorns. Moments later, after cleaning out the stash, a small mouse skittered up the pier and came to stop between my feet. For one brief moment we stared at each other and telepathically the mouse seemed to say with a sneer “Thanks a lot buddy!” Then the bold creature ran out of the observatory, never to be seen again.

-- Adam Block, http://mstecker.com/pages/appblock.htm.

Stories about Halley's Comet's visit in 1910

Some of the other ideas about Halley's Comet publicized in 1910 were fully as odd as the Koreshans' talk of "the breaking in of zones of cruosic energy generated at the colure". Jean B.Marchand refused to accept that the comet which appeared that spring was Halley's Comet -- the real one, he maintained, would not arrive until September. Edwin F.Nulty argued that comets' tails consisted of sunlight focused and concentrated by the head, which acted as a lens and that consequently, a path of fiery destruction would be traced across Earth wherever the focal point went as the comet passed between Earth and Sun.

The comet provided a final impetus for some people to go mad and for others to commit suicide. A sheep rancher in California tried to crucify himself and was badly injured. A Hungarian landowner named Adam Toma did commit suicide, saying he preferred death by his own hand "to being kiled by a star." But the story that a cult in Oklahoma was stopped just short of sacrificing a virgin to the comet was apparently made up and appeared only in some Eastern U.S. newspapers.

... One of the most famous items of 1910 Halley lore was the sale of "comet pills" guaranteed to protect people from the deadly effects of the tail's gases. Much has been said about this racket, but where was it actually practiced? Barnard in 1914 mentioned that such pills had been manufactured and sold among blacks in the south. The pills were reputed to come from Haiti. But the idea must have been picked up by other swindlers. Ruth Freitag mentions one seller of comet pills who was arrested in Texas but, because no one seemed to care about his misdeeds, was let go. In Chicago, people without comet pills or gas masks stopped up the cracks around their doors and windows with rags and newspapers while the Earth was supposed to be passing through the comet's tail.

[[Image:Other/070625a.jpg|400]]

-- COMET OF THE CENTURY, P.183-184.

Stories related to Comet Swift-Tuttle

On the night of July 15 of that year (1862), Lewis Swift, an amateur astronomer in Marathon, New York, was out with his telescope looking for Comet Schmidt, a fairly bright new comet he had read about in the newspaper. Soon he found a fuzzy patch of light in the north sky which he took to be the comet, fainter han expected. But three nights later, Horace Tuttle, at Harvard Observatory, saw the same object and realized it was not Comet Schmidt.  After Tuttle annouced the discovery, Swift hastened to make his claim, which, fortunately for him, was accepted.

Your first reaction might be to think poor Tuttle unfairly got second billing in this comet's name.

Horace Tuttle had already discovered several comets and would discover at least one more very important one - Comet Tempel-Tuttle, the parent of the Leonid meteor showers and storms. But Tuttle, after what some called heroic service in the Civil War, was dismissed from the Navy years later, when it was discovered that he had embezzled a small cial success, Horace Tuttle's fate was to die in 1923 with only $70 to his name and to be buried in an unmarked grave.

Story of Leslie Peltier

...Lwaliw Peltier of Delphos, Ohio, an unassuming farmer who was "the world's greatest non-professional astronomer". Earlier in this century, Peltier discovered a dozen comets and made 132,000 variable-star observations. He earned $18 by picking 900 quarts of strawberries in order to buy his first telescope, "the strawberry spyglass".

– P.129, Comet of the century, Fred Schaaf,  Copernicus, Springer-Verlag New York, Inc.

Some interesting facts of Japanese comet hunters

... Great Kaouru Ikeya, who took a factory job at the age of 14 to help support his family but eventually saved enough money to build his own inexpensive telescope. He searched the pre-dawn skies before work for 335 hours over 109 nights in more than a year before finding his first comet. His co-workers were so proud of him that they put together a gift of $300 to help him continue his comet hunting. ...Ikeya proceeded to discover another comet the next year (1964) and then, in 1965, one of the great comets of the century -- the sungrazer Ikeya-Seki. In 1966, Ikeya found a rather dim comet and then, at the end of 1967, another comet that also ended up being called Ikeya-Seki. In 1965, Ikeya had found the great comet just 15 minutes before Tsutomu Seki; in 1967, he beat Seki by no more than 5 minutes!

The many Japanese amateurs' skll and intensity is demonstrated by the events of October 5, 1975. That night, three of them independently discovered Comet Mori-Sato-Fujikawa within 70 minutes of each other. Later that night, five of them independently discovered Comet Suzuki-Saigusa-Mori within half an hour of each other. Hiroaki Mori is the only person ever to have discovered two comets visually in one night.

– P.127, Comet of the century, Fred Schaaf,  Copernicus, Springer-Verlag New York, Inc.

Stories about Charles Messier

The sport of visual hunting got started after the first predicted return of Halley's Comet. Charles Messier thought he was the first person to recover the comet in January 1759, but he then learned that a German farmer, Johann Georg Palitzsch, had beaten him by almost a month. This disappointment must surely have been a factor in inspiring Messier to start hunting for comets in the 1760s. At first, he had the field to himself, but his countrymen Jacques Montaigne and Pierre Mechain soon became his rivals. Messiers's fierce competitiveness is suggested by a famous story. Shortly after Messier's wife died, he heard that Montaigne had found a new comet. A friend, seeing Messier wracked with grief and thinking he was upset over his wife's death, said "I am sorry." Messier allegedly replied, "Alas! Montaigne has robbed me of my comet!" -- and then, trying to recover, "Poor woman."

-- P.123-124, Comet of the century, Fred Schaaf,  Copernicus, Springer-Verlag New York, Inc.