| November 2008 |
 |
| November 14 - Kuiper Belt Object 90377 Sedna
Closest Approach To Earth |
Kuiper Belt Object 90377 Sedna
Closest Approach To Earth (86.999 AU) |
| November 15 - Comet 193P/LINEAR-NEAT
Closest Approach To Earth |
Comet 193P/LINEAR-NEAT
Closest Approach To Earth (1.900 AU) |
| November 16 - Comet C/2007 G1
Perihelion |
Comet C/2007 G1 (LINEAR)
Perihelion (2.647 AU) |
| November 17 - Leonids Meteor Shower Peak |
Leonids Meteor Shower Peak |
| November 17-21 - 5th European Space Weather Week, Brussels, Belgium |
5th European Space Weather Week, Brussels, Belgium |
| November 20 - Comet C/2008 O3
Closest Approach To Earth |
Comet C/2008 O3 (Boattini)
Closest Approach To Earth (2.046 AU) |
| November 26 - Comet 150P/LONEOS
Perihelion |
Comet 150P/LONEOS
Perihelion (1.768 AU) |
| December 2008 |
 |
| December 1 - Conjunction of Moon, Venus, and Jupiter |
Conjunction of Moon, Venus, and Jupiter (3 Degree Triangle) |
| December 1 - Moon Occults Venus |
Moon Occults Venus |
| December 2 - Cassini, Distant Flyby of Calypso |
Cassini, Distant Flyby of Calypso |
| December 2 - Kuiper Belt Object 19521 Chaos
Closest Approach To Earth |
Kuiper Belt Object 19521 Chaos
Closest Approach To Earth (40.798 AU) |
| December 6 - Kuiper Belt Object 2004 XR190
Closest Approach To Earth |
Kuiper Belt Object 2004 XR190
Closest Approach To Earth (57.093 AU) |
| December 6 - Comet P/2001 X2
Closest Approach To Earth |
Comet P/2001 X2 (Scotti)
Closest Approach To Earth (1.573 AU) |
| December 8 - Comet C/2007 M2
Perihelion |
Comet C/2007 M2 (Catalina)
Perihelion (3.541 AU) |
| December 9 - Cassini, Distant Flyby of Calypso |
Cassini, Distant Flyby of Calypso |
| December 9 - Comet P/2001 TU80
Perihelion |
Comet P/2001 TU80 (LINEAR-NEAT)
Perihelion (1.940 AU) |
| December 10 - Asteroid 2 Pallas
At Opposition |
Asteroid 2 Pallas
At Opposition (8.0 Magnitude) |
| December 13 - Geminids Meteor Shower Peak |
Geminids Meteor Shower Peak |
| December 14 - Comet 146P/Shoemaker-LINEAR
Closest Approach To Earth |
Comet 146P/Shoemaker-LINEAR
Closest Approach To Earth (1.783 AU) |
| December 14 - Comet 144P/Kushida
Closest Approach To Earth |
Comet 144P/Kushida
Closest Approach To Earth (0.589 AU) |
| December 16 - Comet 85P/Boethin
Perihelion |
Comet 85P/Boethin
Perihelion (1.147 AU) |
| December 19 - Comet Tsuchinshan 2 Near-Jupiter Flyby |
Comet Tsuchinshan 2 Near-Jupiter Flyby (0.328 AU) |
| December 21 - Cassini, Titan Flyby |
Cassini, Titan Flyby |
| December 21 - Winter Solstice,
12:04 UT |
Winter Solstice,
12:04 UT |
| December 22 - Ursids Meteor Shower Peak |
Ursids Meteor Shower Peak |
| December 23 - Comet 85P/Boethin
Closest Appproach To Earth |
Comet 85P/Boethin
Closest Appproach To Earth (0.873 AU) |
| December 25 - Comet 57P/du Toit-Neujmin-Delporte
Perihelion |
Comet 57P/du Toit-Neujmin-Delporte
Perihelion (1.724 AU) |
| December 29 - Moon Occults Jupiter |
Moon Occults Jupiter |
| December 29 - Comet C/2008 Q1
Perihelion |
Comet C/2008 Q1 (Maticic)
Perihelion (2.960 AU) |
| January 2009 |
 |
| January - Lunar CRater Observation and Sensing Satellite Impacts Moon |
Lunar CRater Observation and Sensing Satellite (LCROSS) Impacts Moon |
| January 1 - International Year of Astronomy 2009 |
International Year of Astronomy 2009 |
| January 3 - Quadrantids Meteor Shower Peak |
Quadrantids Meteor Shower Peak |
| January 4 - Earth
At Perihelion |
Earth
At Perihelion (0.983 AU From Sun) |
| January 5 - Comet P/2002 CW134
Perihelion |
Comet P/2002 CW134 (LINEAR)
Perihelion (1.844 AU) |
| January 7 - Asteorid 6735 Madhatter Closest Approach To Earth |
Asteorid 6735 Madhatter Closest Approach To Earth (1.033 AU) |
| January 10 - Comet C/2007 N3
Perihelion |
Comet C/2007 N3 (Lulin)
Perihelion (1.211 AU) |
| January 14 - Stardust, Earth Flyby |
Stardust, Earth Flyby |
| January 14 - Venus At Its Greatest Eastern
Elongation |
Venus At Its Greatest Eastern
Elongation (47 Degrees) |
| April 2009 |
 |
| April 4 - Cassini, Titan Flyby |
Cassini, Titan Flyby |
| April 7 - Kuiper Belt Object 136108
Closest Approach To Earth |
Kuiper Belt Object 136108 (2003 EL61)
Closest Approach To Earth (50.179 AU) |
| April 9 - Comet P/2008 G2
Perihelion |
Comet P/2008 G2 (Shoemaker)
Perihelion (2.935 AU) |
| April 10 - Comet 2004 CB Near-Earth Flyby |
Comet 2004 CB (LINEAR) Near-Earth Flyby (0.263 AU) |
| April 11 - Comet Shoemaker 4
Perihelion |
Comet Shoemaker 4
Perihelion (2.935 AU) |
| April 12 - Easter Sunday |
Easter Sunday |
| April 20 - Cassini, Titan Flyby |
Cassini, Titan Flyby |
| April 22 - Lyrids Meteor Shower Peak |
Lyrids Meteor Shower Peak |