THE HIT LIST
DECEMBER 1999

This month's current comets and near earth asteroids - 1 DECEMBER 1999 05:00UT
Thanks to Starry Night for a great program!
Comet Positions are from
Harvard's Minor Planet Center

COMETS
Positions of comets may be deceiving. Remember this is a two dimensional image. The first image is looking from above, down upon the sun and inner planets.

LEGEND:
Sun = Center of image
Comets = named
Red Lines w/ arrows indicate Comet orbit and direction
Earth's orbit in green
Venus orbit in white
Mercury's orbit in red

Comet Lee's Current Position:

This is the current relative position of Machholz 2


The image below is looking from the ecliptic.
The earth in this image is headed toward the other side of the sun and we are about 3 A.U.'s from the sun.
Again the image is deceiving as this is only a two dimensional image. I have included only relevant comets.

LEGEND:
Sun = Center of image
Earth orbit = green
Comets = blue and named
The general direction of each comet is depicted by a small blue line
(the comet is going away from the blue dot and toward the direction of the line.
For instance, Machholz 2 is traveling downward in this image).


ASTEROIDS(and some comets!)
Close Approaches (and other valuable info)
1 A.U. = 92,870,000 miles = 149,790,000 Kilometers
The following information has been gleaned from NASA's SPACE CALENDAR

Dec 01 - Venus At Perihelion
Dec 02 - Mars Polar Lander, Trajectory Correction Maneuver #5 (TCM-5)
Dec 02 - Asteroid 1999 VN6 Near-Earth Flyby (0.182 AU)
Dec 03 - Mars Polar Lander/ Deep Space 2 Lands On Mars
Dec 03 - Mercury At Its Greatest Western Elongation (20 Degrees)
Dec 04 - Comet Shoemaker 1 Closest Approach to Earth (2.027 AU)
Dec 05 - Comet Wiseman-Skiff Closest Approach To Earth (0.700 AU)
Dec 06 - Asteroid 1999 SK10 Near-Earth Flyby (0.111 AU)
Dec 07 - Asteroid 3951 Zichichi Closest Approach To Earth (0.955 AU)
Dec 09 - Comet Machholz 2 Perihelion (0.749 AU)
Dec 10 - Asteroid 1999 RH27 Near-Earth Flyby (0.260 AU)
Dec 13 - Asteroid 1999 VT25 Near-Earth Flyby (0.210 AU)
Dec 14 - Asteroid 1998 CS1 Closest Approach To Earth (0.753 AU)
Dec 15 - Asteroid 1992 QN Closest Approach To Earth (0.722 AU)
Dec 16 - Asteroid 1991 VF Closest Approach To Earth (0.763 AU)
Dec 17 - Asteroid 1996 FG3 Closest Approach To Earth (0.483 AU)
Dec 20 - Asteroid 1999 US3 Near-Earth Flyby (0.368 AU)
Dec 22 - Winter Solstice, 07:44 UT
Dec 22 - Ursids Meteor Shower Peak
Jan 05 - Asteroid 1999 VO11 Near-Earth Flyby (0.218 AU)
Jan 11 - Asteroid 1998 VO33 Closest Approach To Earth (0.658 AU
Jan 12 - Asteroid 1998 OH Closest Approach To Earth (0.558 AU)
Jan 13 - Asteroid 4034 (1986 PA) Closest Approach To Earth (0.401 AU)
Jan 15 - Comet Machholz 2 Near-Earth Flyby (0.319 AU)


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