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楼主: 周波

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

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 楼主| 发表于 2007-9-11 15:27 | 显示全部楼层
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SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

[这个贴子最后由周波在 2007/09/19 01:39pm 第 1 次编辑]

这颗彗星,我已经于今天早上首先在C2图上发现了它!
更多的相关消息见:
http://tech.groups.yahoo.com/group/sohohunter/
===============================================
今天早上的彗星发现经过,在这里,我再简单说一下:
-----------------------------------------------
这几天,我也是根据上面的那个预报图,一直守着呢!
我守了整整三天三夜,最后总算是我发现了它。呵呵!
-----------------------------------------------
今天早上(Sep 10 2007 18:10:41)我是第一个报告的,
五分钟后(Sep 10 2007 18:15:28)我又发了个补点报告;
当时,我还真没想到,再过11分钟(Sep 10 2007 18:26:56)
德国的科里奇特(Rainer Kracht)本人就及时给我确认了。
下面是当时的报告:
*************************
Sep 10 2007 18:10:41
Potential comet:
Images: C2; 1024x1024 images.
(0,0) Upper Left.
20070910   
Non-group comet.
1931  745  525
2055  824  505
2130  856  497
--Bo Zhou
----------------------------
Sep 10 2007 18:15:28
Further to my post of...
Images: C2; 1024x1024 images.
(0,0) Upper Left.
20070910     18:10:41
Kracht II group comet.
1931  745  525
2055  824  505
2109  837  501
2130  856  497
--Bo Zhou
=======================
Sep 10 2007 18:26:56
Confirming comet of:
Images: C2; 2007/09/10     18:10:41
Kracht II group comet.
--Rainer Kracht
---------------------------
Sep 10 2007 21:04:37
Known comet now entering:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
20070910   
Kracht II group comet.
23:18  610  480
23:42  614  479
00:18  621  477
--Rob Matson
 楼主| 发表于 2007-9-19 13:33 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

[这个贴子最后由周波在 2007/09/19 01:36pm 第 1 次编辑]

这颗彗星的最新C2和C3动画见:
http://www.mpifr-bonn.mpg.de/staff/shoenig/index-Dateien/Page434.htm[br][br]-=-=-=-=- 以下内容由 周波2007年09月19日 01:52pm 时添加 -=-=-=-=-
这颗彗星应该是我已发现的85颗SOHO彗星中最特别的一颗了,尽管我在此之前也发现过两颗“Kracht I”族彗星。
 楼主| 发表于 2007-9-19 13:54 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

Latest News
*****************
Aug 20  Bo Zhou reports a Kreutz group comet in delayed C3 images from August 17
Aug 24  Gordon Garradd discovers faint comet 2007 Q1
Aug 26  Hua Su and Arkadiusz Kubczak report a Kreutz group comet in real time C3 images
Aug 28  Hua Su, Rainer Kracht and Shihong Yuan report a Kreutz group comet in real time C3 images
Aug 29  Shihong Yuan, John Sachs and Bo Zhou report a Kreutz group comet in real time C3 images
Aug 30  Alan Gilmore discovers faint periodic comet 2007 Q2
Aug 30  Faint comet 2007 Q3 discovered at Siding Spring
Sep 01  Hua Su reports a Kreutz group comet in real time C2 images
Sep 08  Hua Su reports a Kreutz group comet in real time C3 images
Sep 09  Bo Zhou reports a Kreutz group comet in real time C3 images
Sep 09  Steve Larson discovers faint periodic comet 2007 R1
Sep 10  Bo Zhou reports a Kracht group II comet in real time C2 images = 1999 R1 = 2003 R5
Sep 10  Masanori Uchina reports a Kreutz group comet in real time C3 images
Sep 12  A R Gibbs discovers faint periodic comet 2007 R2
Sep 13  Bo Zhou and Arkadiusz Kubczak report a Kreutz group comet in real time C3 images
Sep 16  A R Gibbs discovers faint periodic comet 2007 R3
Sep 17  Gordon Garradd discovers faint periodic comet 2007 R4
Sep 17  Arkadiusz Kubczak reports a Meyer group comet in delayed C2 images
Sep 17  Bo Zhou reports a Kreutz group comet in real time C3 images
Sep 18  Update
-------------------
http://www.ast.cam.ac.uk/~jds/
 楼主| 发表于 2007-9-23 02:48 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

后来,在IAUC-8871上也作了通报:
K. Battams, Naval Research Laboratory, informs us that B. Zhou
reported his detection of a member of the ';Kracht II comet group';
in SOHO-LASCO C2 data on Sept. 10; the object was immediately
confirmed by R. Kracht as showing ';Kracht-II'; group motion.
 楼主| 发表于 2007-9-27 01:21 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

下面,我再简单地说说它为什么与众不同:
========================================
这是我目前已发现的85颗SOHO彗星中最特别的一颗了。
不光是因为它是一颗非克族彗星,而是一个目前已发现数量最少的科里奇特(II)族彗星;
不算这次的发现,历史上也只发现过三次这个族的彗星;
现在,又证明其中的1999 R1、2003 R5和这次刚发现的2007 R5,其实是同一颗SOHO彗星。
尽管它可能比不上任何一颗目视彗星或者SWAN彗星,
但它的发现在所有已发现的1350多颗SOHO彗星中,还是比较特别的一颗。
另外,再换一个角度说:
我好象记得从2004年开始SOHO彗星的发现,就基本上不在“IAUC”上作通报了;
这次能在IAUC上通报,本身也就说明了它是一颗非同一般的彗星!(周波)
**********************************************
这颗彗星的功臣是Hoenig和Kracht,后者是发现了这一个彗星族,前者是精确计算出了这颗彗星的回归时间,就像当年恩克和哈雷,波只是作为第一个捕获到这颗彗星回归位置的搜索者,也就是前两位理论和计算的验证者,所以真正的含义并不是很特别,IAUC和MPEC简单提一下波的名字是正常的。(苏华)
 楼主| 发表于 2007-10-10 01:39 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

Kracht group comets in 2008
*******************************
Hi all,
Numerous orbital links can be made between the Kracht group comets
of 1996 and 2002 with residuals comparable to the residuals of
the single orbits.
So it seems almost certain that they will return in 2008.
Some of them could be already too faint at their return in 2008
to be found again in the SOHO LASCO images.
Some of them could fragment further with unknown consequences
on their perihelion times.
From my work at
http://www.rkracht.de/soho/links.htm
the expected times of their next perihelion passage are:
C/2002 N2 2008 Feb 12/13
C/2002 Q8 2008 May 12/13
C/2002 Q10 2008 May 16
C/2002 S4 2008 Jun 28
C/2002 S5 2008 Jun 30
C/2002 S7 2008 Jul 03/04
C/2002 S11 2008 Jul 22/23
Regards,
Rainer
 楼主| 发表于 2007-10-23 03:55 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

Sep 28 2007 17:00:55 Mr Sungrazer

Confirmations *** TO Sep 27 2007 13:09:27 ONLY ***:
Soho#  Date/Time of Post  Discoverer    Tel   Group  Images of..
===============================================================
xc62  Aug29,07 10:37:16  B.Zhou         C3   Kreutz  Aug29,07
1352  Aug31,07 23:10:08  H.Su           C2   Kreutz  Sep01,07
1353  Sep08,07 10:33:22  H.Su         C3,C2  Kreutz  Sep08,07
1354  Sep09,07 19:09:34  B.Zhou         C3   Kreutz  Sep09-10,07
1355  Sep13,07 09:46:25  B.Zhou         C3   Kreutz  Sep13,07
1356  Sep17,07 09:15:06  A.Kubczak      C2   Meyer   Sep14-15,07
1357  Sep17,07 10:39:12  B.Zhou         C3   Kreutz  Sep16,07
1358  Sep24,07 08:58:42  M.Uchina     C3,C2  Kreutz  Sep23-24,07
1359  Sep26,07 14:52:00  R.Matson     C3,C2  Kreutz  Sep26-28,07
--
And, of course, we also have
SOHO-85=661 Sep10,07 18:10:41 B.Zhou  C2,C3 KrachtII Sep10-12,07 !!
--
Note that Bo';s object from Aug29 has to go as an x-comet. The positions
do not line up with Hua';s C2 Kreutz. In addition, it is not visible in
HI-1B (which it definitely should be) or COR2 (which is likely for an
object as bright as that should have been). So it can be an x-comet for
now.
--
Going back to P/2007 R5... I have two choices regarding SOHO numbers. I
can either vacate the SOHO-661 spot for the next archvie Kreutz to be
reported, or I can just stick with SOHO-85=661 and leave it at that.
(Note that I am NOT willing to reduce the SOHO comet number of comets
662 through 1359!). I think I will probably vacate 661 and give discovery
credit on the web page to Terry, Kazimieras and Bo. That sound OK to
everyone?
~~KB

Oct 09 2007 13:44:15 Mr Sungrazer

Dear All,
Lecture time... We have a few new people here so I think it is time I
restated a few of the "rules" of comet hunting. Note that this message
is for *everybody* -- "newbies" or "old timers"...
First, you should all be aware of, and follow closely, the rules
stated on the following page:
ares.nrl.navy.mil/sungrazer/index.php?p=instruct  I do enforce these
rules as they keep the reports page cleaner and easier for everyone to
work with.
Second, some of you are aware that it is possible to "automatically"
download data from the LASCO and main SOHO websites by using scipts
and widely available software tools. This is perfectly acceptable, but
ONLY under the following conditions:
1) You DO NOT connect to the machine (lasco6, sohowww, lasco-www, etc)
more frequently than every 15 minutes.
2) You DO NOT generate file lists of every possible LASCO image URL
and repeatedly test the servers for the availability of that data.
Wait until the links are there!!
Failure to do either of the above can (and does) result in your IP
address being blocked or your comet hunting priviledges being
suspended. We do this for the security of the servers.
--
By continuing to follow the above rules, we keep comet hunting fair,
enjoyable and accessible for everybody who wishes to do it, and
therefore ensuring the popularity of the project. Please contact me if
you have any questions or concerns about what is mentioned here.
--
Oh, and the most important rule of all: HAVE FUN! Keep up the good
work everybody!!
~~KB
 楼主| 发表于 2007-10-23 03:58 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

Oct 22 2007 12:49:58
Confirmations:
Soho#  Date/Time of Post  Discoverer    Tel   Group  Images of..
===============================================================
1360  Sep28,07 08:54:09  H.Su         C3,C2  Kreutz  Sep28,07
1361  Sep29,07 04:01:58  H.Su          C3    Kreutz  Sep29,07
1362  Sep29,07 09:39:06  R.Kracht      C2    NonGrp  Sep28,07
1363  Sep29,07 10:21:18  H.Su          C2    Kreutz  Sep28,07
1364  Sep29,07 10:36:58  H.Su         C3,C2  Kreutz  Sep29,07
1365  Sep29,07 23:39:52  B.Zhou       C3,C2  Kreutz  Sep30,07
1366  Oct04,07 18:15:43  R.Matson     C3,C2  Kreutz  Oct04-05,07
1367  Oct10,07 17:03:41 Zhou,Hoffman,Matson C3/2 Krz Oct10-11,07
1368  Oct10,07 17:33:13  R.Matson     C3,C2  Kreutz  Oct10,07
1369  Oct11,07 09:42:54  H.Su         C3,C2  Kreutz  Oct11,07
1370  Oct14,07 09:58:17  H.Su          C2    Kreutz  Oct13,07
1371  Oct15,07 06:53:47  A.Kubczak     C2    Kreutz  Oct13,07
1372  Oct15,07 07:51:51  H.Su         C3,C2  Kreutz  Oct15,07
1373  Oct15,07 08:16:58  M.Uchina      C2    Kreutz  Oct15,07
XC63  Oct15,07 17:24:23  B.Zhou        C2    Kreutz  Oct13,07
--
Bo';s C2 Kreutz claim was too inconsistent in shape/brightness and was not
visible in as many images as I would like. Therefore it is an x-comet.
There were one or two ';confirmed'; reports that I could not confirm. If you have
any specific questions about your reports, please feel free to email me.
--
You may have noticed that in the past two weeks, I have gotten the
"official" comet measurements sent off and so -- thanks to the hard work and
patience of Brian Marsden -- we';re now pretty much up-to-date. I';m going to be
tied up with something else for the next couple of weeks, but I think we are
in good shape right now. Please continue to keep the noise down to an absolute
minimum -- it';s been very good lately, so thank you!
~~KB
 楼主| 发表于 2007-10-24 08:35 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

Oct 23 2007 09:27:22
Correction: Oct15,07 17:24:23 (B.Zhou) = XC-64  
----------------------
XC63  Oct15,07 17:24:23  B.Zhou        C2    Kreutz  Oct13,07
 楼主| 发表于 2007-12-18 18:40 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

Dec 12 2007 09:42:14

Some confirmations:
Soho#  Date/Time of Post  Discoverer    Tel   Group  Images of..
===============================================================
1374  Oct24,07 09:11:15  H.Su           C2   Kreutz  Oct24,07
1375  Oct24,07 09:21:24  H.Su          C3,C2 Kreutz  Oct24,07
1376  Oct24,07 10:27:12  M.Uchina      C3,C2 Kreutz  Oct24,07
1377  Oct24,07 16:04:41  A.Kubczak      C2   Kreutz  Oct24,07
1378  Oct28,07 08:40:49  H.Su          C3,C2 Kreutz  Oct27-28,07
1379  Oct28,07 09:04:09  H.Su           C2   Meyer   Oct27,07
1380  Oct29,07 09:43:06  H.Su          C3,C2 Kreutz  Oct27-28,07
1381  Oct29,07 10:13:05  H.Su          C3,C2 Kreutz  Oct28-29,07
1382  Oct29,07 12:00:59  H.Su           C2   Kreutz  Oct29,07
1383  Oct30,07 00:50:35  T.Hoffman     C3,C2 Kreutz  Oct30,07
1384  Oct31,07 08:46:04  M.Uchina      C3,C2 Kreutz  Oct30-31,07
--
These are ONLY comets to the end of October. I';ll post November and
(hopefully) December later on today.
--
Many congratulations to Hua Su - I think that SOHO-1375 was his
150th SOHO comet! Amazing!!
~~KB
 楼主| 发表于 2007-12-18 18:43 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

Dec 12 2007 12:51:28
More confirmations:
Soho#  Date/Time of Post  Discoverer    Tel   Group  Images of..
===============================================================
1385  Nov01,07 20:01:21  R.Matson       C2   Kreutz  Nov01,07
1386  Nov02,07 16:51:31  A.Kubczak     C3,C2 Kreutz  Nov02-03,07
1387  Nov04,07 08:27:34  R.Kracht       C2   Kreutz  Nov03,07
1388  Nov05,07 08:55:19  H.Su           C2   Kreutz  Nov04,07
1389  Nov05,07 13:47:04  R.Kracht       C2   Kreutz  Nov05,07
1390  Nov05,07 22:57:59  R.Matson      C3,C2 Kreutz  Nov06-07,07
1391  Nov06,07 04:29:36  H.Su           C2   Kreutz  Nov06,07
1392  Nov09,07 07:47:56  Z.Jin          C2   Meyer   Nov09,07
1393  Nov10,07 10:10:05  H.Su          C3,C2 Kreutz  Nov10-11,07
1394  Nov10,07 22:20:07  S.Yuan         C2   Kreutz  Nov11,07
1395  Nov13,07 14:26:24  R.Kracht       C2   Kreutz  Nov13,07
1396  Nov14,07 18:47:45  R.Kracht       C2   Kreutz  Nov14,07
1397  Nov19,07 05:42:23  M.Mazzucato    C3   Kreutz  Nov19,07
1398  Nov19,07 07:40:17  H.Su           C2   Kreutz  Nov19,07
1399  Nov22,07 13:30:58  R.Kracht       C2   Kreutz  Nov22,07
1400  Nov23,07 12:10:35  B.Zhou        C3,C2 Kreutz  Nov23-24,07
1401  Nov24,07 13:15:31  H.Su           C2   Kreutz  Nov23,07
1402  Nov24,07 13:36:02  H.Su,M.Kusiak  C2   Kreutz  Nov24,07
1403  Nov25,07 21:23:45  T.Hoffman      C2   Kreutz  Nov23,07
1404  Nov29,07 16:19:38  R.Kracht       C2   Kreutz  Nov29,07
--
This concludes comets reported in November.
--
Congratulations here are due to Zhangwei and Michal for finding
their first SOHO comets -- well done!!
Also, congratulations to Bo for finding SOHO';s 1400th comet!!
--
Way back on Jan20,2004 (12:46:38) I confirmed SOHO-700 and made the
comment "let';s hope for 700 more". I';m not really sure if I actually
believed we could reach SOHO-1400, but I should have had faith in
the remarkable SOHO satellite and the extraordinary dedication of
all of you SOHO comet hunters! So it is with far less hesitation
that I now say "LET';S HOPE FOR ANOTHER 700 MORE"!!!! Thank you
everyone for your continued contributions to this project -- every
new comet you find is making history!
--
More confirmations and congratulations to come in a while...
~~KB
 楼主| 发表于 2007-12-18 18:45 | 显示全部楼层

SOHO彗星爱好者交流帖(SOHO新闻、资料、新手互动等)

Dec 12 2007 16:10:40
Remaining confirmations:
Soho#  Date/Time of Post  Discoverer    Tel   Group  Images of..
===============================================================
1405  Dec01,07 09:07:08  H.Su           C2   Kreutz  Dec01,07
1406  Dec03,07 10:16:06  M.Uchina       C2   NonGrp  Dec03,07
1407  Dec04,07 13:21:46  H.Su           C2   Kreutz  Dec04,07
1408  Dec04,07 15:04:50  R.Kracht       C2   Kreutz  Dec04,07
1409  Dec05,07 11:16:28  H.Su          C3,C2 Kreutz  Dec05-06,07
1410  Dec07,07 11:38:43  H.Su          C3,C2 Kreutz  Dec07-08,07
1411  Dec10,07 12:55:34  M.Kusiak       C2   Kreutz  Dec10,07
1412  Dec10,07 13:18:38  H.Su           C2   Meyer   Dec10,07
1413  Dec10,07 13:42:33  T.Hoffman     C3,C2 Kreutz  Dec10,07
1414  Dec12,07 00:36:24  T.Hoffman     C3,C2 Kreutz  Dec12-??,07
1415  Dec12,07 00:44:56 Matson,Hoffman C3,C2 Kreutz  Dec12,07
1416  Dec12,07 09:40:25  R.Kracht,H.Su  C2   Kreutz  Dec12,07
--
This does not include Michal';s most recent post.
--
More congratulations, this time to Tony Hoffman for breaking the
100-comet mark! Fantastic work, Tony -- well done!
Also, Rainer is now just one comet away from his 200th! Wow!!!
--
Well done to Michal for finding his second comet, to Masanori for
finding that Non-group comet, and to Hua for just finding so many
comets!!  
~~KB

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