本帖最后由 suhuasky 于 2017-3-19 00:53 编辑
Orbital Elements
Epoch 2017 Mar. 28.0 TT = JDT 2457840.5T 2017 Apr. 12.74715 TT MPCWq 1.0450492 (2000.0) P Qn 0.18192600 Peri. 62.15139 -0.91179453 +0.39809128a 3.0846522 Node 141.07045 -0.40999040 -0.86863567e 0.6612100 Incl. 9.22806 -0.02320787 -0.29494983P 5.42From 446 observations 2006 Feb. 3-2016 Dec. 8, mean residual 0".8. Nongravitational parameters A1 = +0.67, A2 = -0.0160.
最小距离 地球和41P Tuttle-Giacobini-Kresak
以下是近期国外41P的照片,绿色大毛球,彗尾不明显
Taken by rolando ligustri on March 17, 2017 @ from New Mexico , ITelescope.net
DK 500/2250 ccd PL11002 L=2x300s in bin2
Taken by Dr. Brian Ottum on March 16, 2017 @ Dark Sky New Mexico
250mm f/5, Canon 5DmkIII, 4x300seconds.
Taken by michael jäger on March 16, 2017 @ Weißenkirchen Austria
41P 19.53 UT RGB 300/300/300sec
亮度预期和经天图Copyright(C) Seiichi Yoshida
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