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Comet C/2017 D3 (ATLAS)
(Preview)
Comet C/2017 D3 (ATLAS) makes its closest approach to the Earth (4.585 AU) on the 8th March 2018
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Comet C/2017 U1 (PANSTARRS)
(Preview)
Orbital elements:
C/2017 U1 (PANSTARRS)
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5
T 2017 Sept. 9.41719 TT MPCW
q 0.2515404 (2000.0) P Q
z -0.7541603 Peri. 241.01670 -0.63536548 +0.68733697
+/-0.0181483 Node 24.61531 +0.49903801 +0.71329677
e 1.1897018 Incl. 122.32770 -0.58929769 -0.13...
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Comet P/2017 P1 (PANSTARRS)
(Preview)
Orbital elements:
P/2017 P1 (PANSTARRS)
T 2018 June 17.09649 TT MPCW
q 5.4385305 (2000.0) P Q
n 0.04469215 Peri. 122.14342 +0.95394907 +0.28658264
a 7.8640918 Node 221.39278 -0.29990139 +0.90492209
e 0.3084350 Incl. 7.70131 -0.00635002 +0.31462106
P 22.05
From 32 observations 2017...
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Comet C/2015 D4 (Borisov)
(Preview)
A meteor shower from C/2015 D4 (Borisov) on July 29? Discovered on 2015, February 23rd, by Gennady Borisov, the comet C/2015 D4 (Borisov) is a long-period one, which will be back in the inner Solar system in more than 200 years. Its last perihelion was thus in October 2014, just before it was discovere...
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Comet C/2017 C1 (NEOWISE)
(Preview)
Comet C/2017 C1 (NEOWISE) is at Opposition (1.102 AU) on the 6th April 2017
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Comet C/1471 Y1
(Preview)
The Great Comet of 1472 (C/1471 Y1) was discovered on the 21st December 1471, and was visible for a total of 59 days. The English 'Chronicles of the White Rose of York' (1483) reported that "...this star was seen two or three hours before the Sun('s) rising in December, four days before Christmas, in th...
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