转帖：池谷-张彗星照片专辑（lymex发布）
lymex发布于2002-3-20至2002-5-6池谷-张彗星集合，以欣赏和研究为目的，将不断的登载业余或专业的精彩照片。
目前为多页，不要漏掉后面的，最后面才是最新的。
2002.3.6 18:30UT, Schmidt 250/450mm, 100S, 3x4 Min. Michael Jäger
http://www.astrostudio.at/IkeyaMaerz6.jpg
2002.3.8 UT 18h 11m - 18h 31m 12"/f3.3, 100S/120, 9 Min + 12Min. Michael Jäger
http://www.astrostudio.at/Maerz8Michael.jpg
2002-3-10 UT 18h 14m, 18h 31m, 18h 38m 340mm/f3.1, E100/120, 2x8 Min + 1x9, Gerald Rhemann
http://www.astrostudio.at/IkeyaGeraldMaerz10.jpg
2002-3-11 UT 18h 35m, 12"/f3.3, E100/120, 10 Min,.Michael Jäger
http://www.astrostudio.at/IkeyaMaerz11Jaeg.jpg
2002-3-11, 10x15sec合成，C8, F1.95, ST-237A CCD
http://www.spaceweather.com/comets/Ikeya-Zhang/g_jones_2002c1_031102.jpg
2002-3-12 18:35UT, 12"/f3.3, E100/120, 7 Min, Michael Jäger
http://www.astrostudio.at/IkeyaMaerz12Delta.jpg
2002-3-16 UT 18:19-18:34, 12"/f3.3, E100/120, 5+6 Min. Michael Jäger
http://www.astrostudio.at/IkeyaMaerz16.jpg
2002-3-18 18:25UT Hypergraph 340mm/f3.1, E100/120, 5 Min.Gerald Rhemann
http://www.astrostudio.at/IkeyaMaerz18Color.jpg
意大利人拍摄，无数据，自己可以估计一下，发表在3月26日每日天文一图上。
判断了一下，是2002年3月18日拍摄，大约是58mm焦距的镜头，大光圈（如f/1.4），高感光的底片（如800度），暴光20秒左右。其实彗星没那么亮，正掩两个小星呢。
http://antwrp.gsfc.nasa.gov/apod/image/0203/ikeya_rodriguez_big.jpg
2002-3-26, Eric Allen, 0.4 meter Newtonian telescope
http://www.spaceweather.com/comets/Ikeya-Zhang/e_allen_2002c1_032602.jpg
Dave Foster2002-3-27拍摄，右边是火星。这个显然没有跟踪拍摄，彗核和恒星都拉长了
http://www.spaceweather.com/comets/Ikeya-Zhang/d_foster_2002c1_032702_1.jpg
2002-3-30 19:18UT, Schmidt 8"/f1.5, E100, 2x4 Min.Michael Jäger, 亮星为仙女座Beta
http://www.astrostudio.at/IkeyaMaerz30.jpg
这是四月份的池谷-张彗星照片（lymex发布）：
2002-4-4 19:01UT-19:16UT, Schmidt 190/255/435mm, Gerald Rhemannhttp://www.astrostudio.at/Overview.jpg
2002-4-4 19:01-19:07UT, Schmidt 250/450mm, E100, 2x3 Min. Michael J鋑er
http://www.astrostudio.at/IkeyaApril4Jaeger.jpg
Nikkor 16mm/3.5, 30min, ISO800, Jan Lameer
http://www.spaceweather.com/comets/Ikeya-Zhang/j_lameer_2002c1_040402.jpg
2002-4-4 19:25UT, Nikon 50mm/4.0, E100, 5 Min. Gerald Rhemann
http://www.astrostudio.at/UebersichtApril4.jpg
2002-4-4 19:25UT, Nikon 50mm/4.0, E100, 5 Min. Gerald Rhemann
http://www.astrostudio.at/UebersichtApril4.jpg
2002-4-7 19:17UT, Schmidt 250/450mm, E100, 5 Min.Michael J鋑er
http://www.astrostudio.at/IkeyaApr7.jpg
2002-4-10
http://www.spaceweather.com/comets/Ikeya-Zhang/ikeya_041102/c_sherrod_2002c1_041002.jpg
2002-4-7,Canon 200/1.8 at f/2.2 Kodak Supera400, 2min, G-11未导星，Jay Ouellet，Canada
http://www.spaceweather.com/comets/Ikeya-Zhang/ikeya_040902/j_ouellet_2002c1_040702.jpg
2002-4-12, 8" schmidt f/1.5, Fuji 800, 5min x3, Dominic Cantin, Canda
http://www.spaceweather.com/comets/Ikeya-Zhang/ikeya_041202/d_cantin_2002c1_041102.jpg
2002-4-13 01:20UT Schmidt 250/450mm, E100, 6.5 Min., Michael Jäger
http://www.astrostudio.at/IkeyaApr13.jpg
同上，细节。
http://www.astrostudio.at/IkeyaApr13Detail.jpg
12.5" f/5 自制牛顿，AP1200QMD, SBIG ST7E, RGB = 2m:3m:3m, 2002-4-14 by Dawn Schur
http://www.spaceweather.com/comets/Ikeya-Zhang/ikeya_041502/c_schur_2002c1_041402.jpg
2002-4-17, Tim Printy, 200/2.8, ISO400, 16min. 可见玫瑰星云。
//www.spaceweather.com/comets/Ikeya-Zhang/ikeya_042002/t_printy_2002c1__041702.jpg
北极光和池谷-张(摄于Fairbanks, Alaska)
http://antwrp.gsfc.nasa.gov/apod/image/0204/izaurora_mammana_big.jpg
2002-4-9, 30秒。彗星和ISS
http://antwrp.gsfc.nasa.gov/apod/image/0204/IZandISS_lakomiak_full.jpg
http://www.spaceweather.com/comets/Ikeya-Zhang/ikeya_042702/j_blom_2002c1_03_14-04_22.jpg
原说明：
Jorgen Blom: "Five pictures of Comet Ikeya-Zhang taken near Stockholm from March 14 to April 22, all using a 300 millimeter lens and with exposure times varying from 4 to 12 minutes. One can see that on the last date, April 22, the comet's coma seems to have nearly doubled in size. In part this can be explained by the comet being much nearer Earth on April 22; the difference in distance between March 14 and April 22 is in fact about 74 million kilometers or half the distance from Earth to sun."
http://www.spaceweather.com/comets/Ikeya-Zhang/ikeya_042702/c_sherrod_2002c1_042502.jpg
2002-4-30 21:29UT and 21:43UT Gerald Rhemann and Michael Jäger
http://www.astrostudio.at/IkeyaApr30.jpg
2002-04-30 21:29UT and 21:43UT
5等的Ikeya-Zhang (5.0 Mag.) 和11.5等的 Komet Snyder-Murakami距离仅 1.5°
Schmidt 190/255/435mm 和 250/450mm, Kodak E100, 7 Min. Gerald Rhemann 和 Michael Jäger
右下角可见Snyder-Murakami彗星
http://www.astrostudio.at/IkeyaundSnyder.jpg 终于贴完了。感谢lymex先生为我们收集这么好的彗星图片！
请lymex继续发布吧。
请诸位同好继续发帖、评论。
我有 好古-张 的专辑……
哈哈
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