親子觀星會

http://www.aerith.net/comet/catalog/0021P/2018.html

(http://www.aerith.net/comet/catalog/0021P/2018-mag.gif)

https://www.skyandtelescope.com/observing/4th-of-july-fireworks/

(https://www.skyandtelescope.com/wp-content/uploads/21P-3-day-final-ST.jpg)

http://spaceweathergallery.com/indiv_upload.php?upload_id=146872

(http://0e33611cb8e6da737d5c-e13b5a910e105e07f9070866adaae10b.r15.cf1.rackcdn.com/Dr-Paolo-Candy-Giac_Zinn_020818_Lk_1533290758_lg.jpg)

https://www.calsky.com/csephem.cgi?object=Comet&number=21P&tdt=2457929.32440880&obs=1414021549531167

https://www.facebook.com/photo.php?fbid=1002870723225959&set=gm.1873201902736631&type=3&theater

 11*300s ISO1600


(https://scontent.ftpe8-4.fna.fbcdn.net/v/t1.0-9/38864900_1002870733225958_8145924708345315328_o.jpg?_nc_cat=0&oh=082b2b8e4e69cf83b30884781d535e10&oe=5C0F54AF)

Denis Kan

https://www.facebook.com/photo.php?fbid=1794130140707950&set=a.107273016060346.9202.100003329437162&type=3&theater
1800mm

(https://scontent.ftpe8-4.fna.fbcdn.net/v/t1.0-9/39060356_1794130144041283_8850242075795390464_o.jpg?_nc_cat=0&oh=9f5f7b8820862bd3b716b9f56c1bc39c&oe=5C066D11)

https://www.flickr.com/photos/45594847@N07/44003051222/in/dateposted-public/

https://www.facebook.com/photo.php?fbid=2170942882919257&set=a.269535393060025&type=3&theater

Fritz Helmut Hemmerich

Comet 21P/Giacobini-Zinnerclose (gas and faint ion tail) encounter with Heart and Soul nebulae. 1,5 total integration (separated for stars and comet) time (180 x 30 sec), Sony A7s ISO3200, Canon 200mm F1.8 (own modification), no filter,EQ8 mount, Tenerife 1180 m altitude, 2018-08-18 at 3h to 4:30h UT.

http://www.tam.museum/astronomy/forecast_detail.php?lang=tw&id=142

 21P/Giacobini-Zinner正在接近地球中 估計在9/10時將通過近日點，且與地球最接近至0.39AU，相當於5800萬公里，彗星亮度最亮可達亮達6~7等左右。最近一次彗星觀測報告（8/24）顯示：這顆彗星目前亮度已達7.5~8等左右，利用雙筒望遠鏡或小型望遠鏡，在沒有光害且大氣乾淨的地方都可輕易觀察到它；它現在位在鹿豹座中，接近天北極，故整夜均可見，觀測條件很好。下方21P影像為奧地利天文攝影專家Michael Jäger於8/24拍攝的結果，彼時這顆彗星正在通過Tombaugh 5疏散星團（取自Spaceweather.com網站）。

(http://www.tam.museum/astronomy/htmlFiles/images/michael-jAcger-21P20180823ut126RGB_1535067150_lg.jpg)

https://www.facebook.com/100001905366175/videos/pcb.2448774291862726/2448774005196088/?type=3&theater

張永融

碎 ??
 
還不知真假 



==

https://www.cloudynights.com/topic/631841-21pgiacobini-zinner-comet-10-sec-subs/

https://stargazerslounge.com/topic/320350-comet-21pgiacobini-zinner-image-and-animation/

9/10  約 200~250mm   IC405  IC417  NGC1931  M36


9/11 很近 M37

9/15  close M35

9/17 ic443

https://www.facebook.com/photo.php?fbid=2207071542639724&set=a.269535393060025&type=3&theater
Fritz Helmut Hemmerich 
(https://scontent.ftpe8-4.fna.fbcdn.net/v/t1.0-9/41345270_2207071545973057_3008389432798609408_n.jpg?_nc_cat=0&oh=7c7581f0beacce086f76390b38c50968&oe=5C216DDA)

Canon 200mm F1.8 (own modification, open aperture) with Sony A7s with ISO 4000, 240 x 30 sec for RGB
Tenerife 1180 m above sea level.

https://www.flickr.com/photos/transientastro/44584595341/

https://www.skyandtelescope.com/observing/bright-comet-prospects-for-2018/
(https://www.skyandtelescope.com/wp-content/uploads/2018-21P.jpg)

https://cobs.si/analysis2?col=comet_id&id=403&start_date=2018/02/01%2000:00&end_date=2019/02/01%2000:00&plot_type=0&perihelion=1&fit_curve=1&obs_type=3

http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap180913.html

(http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/image/1809/Comet-21p-Giacobini-ZinnerX93.jpg)

https://www.facebook.com/photo.php?fbid=2227246053955606&set=a.269535393060025&type=3&theater

https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/27324


https://www.flickr.com/photos/128758169@N05/44963976802/