2008-Feb 11Monday

2月10日的陈-高彗星

2008年2月11日19:00　 Lulin Sky Survey, 一图胜千言, 鸡毛蒜皮　4条评论 || 4 Comments

　　玩弄了半个小时的三色叠加，总算把昨晚拍的陈-高彗星叠加好了。多谢林启生老大在冰天雪地的鹿林搞拍摄。

　　好暗的彗星哪…… R滤镜的图还有一张给一颗星挡到了，处理来处理去都没法叠起来，最后只好舍掉那张图不要，Grrr…. 真想把那个星从宇宙中挖掉……

　　这等想法真是犯上大逆，呵呵，要知道这星出生的时候还没有人类呢……

C/2008 C1 (Chen-Gao)

2007-Nov 3Saturday

Further 17P images

2007年11月3日12:36　 Lulin Sky Survey, 一图胜千言　评论/Comment.

Holmes is quite easy to see now… a pretty nice “ball” in Persius. Spotted it with ease on Octo. 30. However I’ve use the 41-cm telescope at Lulin Observatory to take some further images of this comet, plus a very early image from Octo. 24/25. Note the jets!

Click to enlarge

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2007-Oct 28Sunday

Comet Holmes on Oct. 27/28

2007年10月28日18:51　 Lulin Sky Survey, 一图胜千言　评论/Comment.

Comet Holmes seems to stop exploding. The brightness didn’t went up in the past 48 hours and the coma kept growing. On the image of Oct. 27/28, I estimated the coma diameter is about 330″ or 5.5′. The jets were also slightly changed, one strong jet instead of 3 batch jets on Oct. 26/27.

Click to enlarge

Click to enlarge

2007-Oct 27Saturday

Comet Holmes: like a pig

2007年10月27日22:44　 Lulin Sky Survey, 一图胜千言　评论/Comment.

I spent a whole day on processing the thousands image that the Lulin Ritchey-Chretien taken on Oct. 25/26. Finally the result is out. But I don’t get much happier — Huan said he has found a way to find out what cause the outburst — well, I must do something on this, too. Now I plan to join the CARA project to measure the dust production rate of Comet Holmes. Tomorrow’s mission…

Ok let’s focus on our baby. Comet Holmes just keep grown like a pig. But the jets are fantistic, it’s my first time to get such a nice image of inner coma of a comet! And I’d like to bring your attention to the color. It’s still green on Oct. 25 but is redder on 26th. Spectrum observations are needed…

Click to enlarge

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2007-Oct 27Saturday

17P: the comet that shocks astronomy world

2007年10月27日12:04　 Lulin Sky Survey, 一图胜千言　评论/Comment.

17P/Holmes was only a 16mag. faint object in the sky by Octo.20, but observations on Octo.24/25 showed it has brighten by ~1 mega scale, to ~2.0mag.! We could say it’s the first time in history that the comet brings us such a big big shock. I took thousands images of Comet Holmes over Octo.24, 25 and 26, by the Lulin Sky Survey 0.41-m Ritchey-Cherien telescope. I’ve just finished processing of 126 data points on late Octo.25, here is the result:

Click to enlarge

Note the varied, strong jets from the nulie of the comet, dark spots also come out from the Log/FFT proceed snapshot.

By the way, I caught it with naked eye on late Octo.26, at mag.~3.2. I’ll continue mortoning on that boy to see what’ll come up. Stay turn for updates.

2007-Oct 1Monday

客串一回专业天文学家

2007年10月1日17:33　 Lulin Sky Survey, 一图胜千言, 观星手记　2条评论 || 2 Comments

　　仔细研读了说明之后，我也客串了一回在天文台里控制望远镜使用的专业天文学家！哈哈。9月28日早晨3点多爬起来，接过鹿林方面的控制权，遥控望远镜进行观测。那天晚上一共观测了8个等待确认的近地小行星和1颗新彗星。
　　顺便啰嗦一句：电信的速度实在不行，晚上到鹿林的带宽只有不足100kbps，搞到我要凌晨起来才能观测！不满……

我正遥控鹿林的望远镜进行近地小行星追踪工作

2007-Aug 6Monday

[F.W.] A comet of cooperation

2007年8月6日23:53　 English island, Lulin Sky Survey　2条评论 || 2 Comments

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”

2006-Dec 27Wednesday

鹿林巡天暂停

2006年12月27日15:16　 Lulin Sky Survey　评论/Comment.

　　由于12月26日台湾南部海域发生强烈地震，多条海底电缆中断，中国大陆至台湾地区、南北美洲地区的通信受到严重影响，鹿林巡天无法进行日常的数据交换，兹决定自2006年12月27日起暂停运行，何时恢复视海底电缆修复情况而定。

　　鹿林巡天是目前我国唯一一个小行星、彗星搜寻项目，开始于2006年3月5日。

参考文献：http://www.chinatelecom.com.cn/news/02/t20061227_21694.html

2006-Jul 22Saturday

Lulin server down for one week

2006年7月22日21:21　 Lulin Sky Survey　评论/Comment.

  The server of Lulin is down and will be recovered in a week. During this time, most functions of Realtime Lulin will not be available.

2006-Jul 12Wednesday

FOLLOW-UP FAILURE OF QY67872, NEW DISCOVERIES, CREDIT CHANGE OBJECT, CORRECTION

2006年7月12日10:09　 Lulin Sky Survey　评论/Comment.

Lulin Sky Survey Electronic Circular No. 27
LULIN SKY SURVEY
[email protected]
URL http://luss.y234.cn/
Issued 2006 July 12, 1:54 UT
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FOLLOW-UP FAILURE OF QY67872, NEW DISCOVERIES, CREDIT CHANGE OBJECT, CORRECTION
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FOLLOW-UP FAILURE OF QY67872

  Potential Near-Earth Asteroid QY67872, which was discovered by H. C. Lin and Q. Ye on July 7, was removed from Near-Earth Object Confirmation Page of Minor Planet Center as a \”not-confirmed object\”.
  The object is moving very quickly and it\’s close to the full moon, and was not able to follow-up by Lulin Sky Survey and other sky surveies.

NEW DISCOVERIES

#LUSS   Designation   Discovered date (UT)   Discoverer(s)
66      2006 NS       July 6, 2006           H. C. Lin, Q. Ye

CREDIT CHANGE OBJECT

#LUSS   Designation   Principal
63      2006 MP13     2002 PJ10

CORRECTION

  The \”New discoveries\” annoucement in LUSSEC 26 has mistakes, the LUSS numbers are wrong. It should be numbered as following. My apologize for this.

#LUSS   Designation   Discovered date (UT)   Discoverer(s)
64      2006 MP14     June 30, 2006           C. S. Lin, Q. Ye
65(*)   2006 NR       July 4, 2006            C. S. Lin, Q. Ye
(*) Credit change to 2002 VO113.
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Quanzhi Ye              (C) Copyright 2006 Lulin Sky Survey              LUSSEC 27

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