... Mar 20 22 h 46.31 m summer: Jun 21 16 h 39.11 m autumn: Sep 23 8 h 21.54 m winter: Dec 22 4 h 48.99 m Earth in perihelion: Jan 04 6.62 h aphelion : Jul 06 19.69 h Mean obliquity of ecliptic (eps) at J2015.5: 23.437275 o = 23 o 26 ' 14.19" Sin(eps) = 0 ...

... At this point in its orbit, Halley had recently passed perihelion on February 9, 1986 and was at its most active. ...

... none . 0.023 . 0.015 . Argument of perihelion . deg . 188.000 . 30.000 . ...

... Astronomers think the outburst occurred when Comet Hergenrother reached perihelion, its closest approach to the Sun, October 1. Chris Schur. ...

... In December and January 2014/2015, Lovejoy is rising from the South and will be getting higher as it approaches perihelion on January 30th. ...

... Note that for the M11 (absolute magnitude) plot as a function of perihelion distance q, the red lines indicate opposition magnitudes of R=20, 22, 24. ...

... Comet discoveries made with the U. K. Schmidt Telescope Status as at 2005 Jan 17 Perihelion q Q a P e i g k Name 2002 09 05 2.31 4.9 3.60 6.8 0.359 24.4 7.0 8.0 77P/Longmore 2003 02 15 1.23 4.8 3.03 5.3 0.594 2.9 79P/du Toit-Hartley 2006 09 26 1.63 6.5 4 ...

... It was led on the 1st of December 1989 by the Soviet launch vehicle "Proton" on the elliptical orbit of the Earth with the apogee of 200 thousand kilomitres 2 thousand km perihelion, 4 tones mass. ...