親子觀星會

29P 噴發

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40年來最亮  11.25 等


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https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/26546

http://www.aerith.net/comet/catalog/0029P/2019.html

可能 16 -> 13 等?

好暗阿

itelescope 有提，不過亮度13

https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/26639


https://zh.wikipedia.org/wiki/29P/%E6%96%BD%E7%93%A6%E6%96%AF%E6%9B%BC-%E7%93%A6%E8%B5%AB%E6%9B%BC%E5%BD%97%E6%98%9F
下次近日點  日期    2019年3月7日
這顆彗星不尋常的是通常光度維持在16等，會突然的增光和爆發，這會導致彗星的亮度增加1-4等  這種現象發生的頻率為每年7.3次

update
https://groups.yahoo.com/neo/groups/CometObs/conversations/messages/7188

29P/Schwassmann-Wachmann:
2017 July 2.06 UT: m1=12.2, Dia.=1.8', DC=3/, 20 cm SCT (133x).
[ In outburst. Starlike central condensation. The observed coma
is the result of the recent previous minor outbursts. Comparison
stars taken from APASS photometry. Field stars checked in DSS.
Sidgwick method. SQM : 21.4.].

29P 變亮

http://www.itelescope.net/sky-alerts/2017/7/30/alert-comet-29p-in-outburst-again.html

http://www.aerith.net/comet/catalog/0029P/2019-j.html
(http://www.aerith.net/comet/catalog/0029P/2019-mag1.gif)
(http://www.aerith.net/comet/catalog/0029P/2019-mag2.gif)

有一說變亮一些些  ????
好暗阿


https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/26731


(http://www.aerith.net/comet/catalog/0029P/2019-mag7.gif)


https://www.taivaanvahti.fi/app/api/display_search.php?format=html&title=revo&title=omeetta

(http://www.taivaanvahti.fi/images/uploads/201708/66401_7516f62481ed3d188a3bb5a187709109.jpg)

(http://www.astronomie.be/pieterjan.dekelver/Observations/20171020_29P_Schwassmann-Wachmann_W87_FULL.jpg)

https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/27313

變亮 

https://groups.yahoo.com/neo/groups/CometObs/conversations/messages/7477


21P/Giacobini-Zinner:
2018 Sep. 19.18 UT: m1=7.6, Dia.=6', DC=6/, Tail: 0.6 deg. in PA 280 deg, 10x50B.
[ Zodiacal light. Sidgwick method. Tycho-2 comparison stars. SQM : 21.2 ].

29P/Schwassmann-Wachmann:
2018 Sep. 19.05 UT: m=11.1:, Dia.=5', DC=1, 20 cm SCT (77x).
[ Faint and diffuse outer coma diameter : 5', providing m=11.1: (TK).
This faint outer coma is a remnant of previous outbursts. Sidgwick method.
APASS comparison stars. SQM : 21.5. ].

https://www.over-blog.com/user/2078914.html

http://astronomiecyrille.over-blog.com/2018/09/comete-29p/schwassmann-wachmann-1-nuit-du-13-au-14-septembre-2018.html

https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/27321

Extremely bright mag 12.2 outburst of Comet 29P

https://groups.yahoo.com/neo/groups/comets-ml/conversations/topics/27504

http://www.astronomerstelegram.org/?read=13164

Possible Fragmentation of Comet 29P/Schwassmann-Wachmann 1

https://remanzacco.blogspot.com/2019/09/comet-images-from-dark-sky-of-chile.html

https://groups.io/g/comets-ml/topic/quadruple_outburst_of_comet/85921288?p=,,,20,0,0,0::recentpostdate/sticky,,,20,2,0,85921288,previd=1632867960772518124,nextid=1631118664145291996&previd=1632867960772518124&nextid=1631118664145291996

Outburst at 2021 09 25.340 +/-0.005                  16.90R => 14.43R    Intensity ~1
Outburst at 2021 09 26.15 +/-0.12                      14.45R => 13.73R   Intensity ~1
Strong outburst at 2021 09 26.98 +/-0.05           13.75R => 12.40R   Intensity ~5
Very strong outburst at 2021 09 27.68 +/-0.06   12.40R => 11.25R   Intensity ~12
 

http://www.aerith.net/comet/catalog/0029P/2019.html 

(http://www.aerith.net/comet/catalog/0029P/2019-mag10.gif)

https://skyandtelescope.org/astronomy-news/comet-29p-undergoes-brightest-outburst-in-recent-years/

http://members.westnet.com.au/mmatti/schp.htm

https://www.facebook.com/LuLinObservatory/photos/a.359188867558692/2596236120520611/

https://www.cnbeta.com.tw/articles/science/1334487.htm

29P 噴發
29P被认为至少是我们迄今为止发现的太阳系中火山最活跃的彗星。这颗彗星几乎需要15年才能完成绕太阳一圈，它只是被称为半人马天体的100颗彗星中的一颗，这些彗星是从柯伊伯带 - 也就是潜伏在海王星之外的一圈冰冷的彗星中飞出来的。

上个月的11月22日，天文学家帕特里克-维金斯注意到，29P的亮度似乎有了相当大的提高。这让威金斯和其他人更仔细地观察这颗彗星，确定其火山彗星一定是爆发了。此外，这次喷发被认为是非常重要的，它是在过去12年中从29P看到的第二大喷发。

https://britastro.org/section_news_item/eight-outbursts-of-comet-29p-schwassmann-wachmann-in-3-weeks-a-new-record

https://skyandtelescope.org/online-gallery/comet-29p-schwasmann-wachmann/

http://astro.vanbuitenen.nl/comet/29