1P/Halley
 
r (AU)HNInbound / OutboundMag. codeDateReported Mag.PhaseObservatory codeMPC NumberObserver/Observatory Name
18.80 14.3 O 3 1994/01/11 26.5 1.8 809 23152 European Southern Observatory, La Silla
12.80 13.6 I 0 1982/03/19 13.6 3.0 - - B Sicardy
12.72 14.2 I 2 1982/04/04 14.2 2.0 - - D Jewitt
11.04 13.8 I 2 1983/01/31 13.8 5.2 - - D Jewitt
11.03 13.4 I 0 1983/02/01 13.4 5.2 - - B Sicardy
10.72 14.2 I 0 1983/03/27 14.2 2.8 - - R West
10.51 13.4 I 0 1983/05/01 13.4 1.9 - - R West
10.12 8.3 O 1 1989/04/20 8.3 4.6 - - R West
8.62 14.5 O 3 1988/05/19 23.6 6.7 809 13926 European Southern Observatory, La Silla
8.61 14.1 O 3 1988/05/17 23.2 6.7 809 13926 European Southern Observatory, La Silla
8.61 13.8 O 3 1988/05/18 22.9 6.7 809 13926 European Southern Observatory, La Silla
8.61 13.7 O 3 1988/05/17 22.8 6.7 809 13926 European Southern Observatory, La Silla
8.60 14.9 O 3 1988/05/16 24.0 6.8 809 13926 European Southern Observatory, La Silla
8.60 14.8 O 3 1988/05/16 23.9 6.8 809 13926 European Southern Observatory, La Silla
8.60 14.6 O 3 1988/05/16 23.7 6.8 809 13926 European Southern Observatory, La Silla
8.60 14.4 O 3 1988/05/16 23.5 6.8 809 13926 European Southern Observatory, La Silla
8.60 13.7 O 3 1988/05/17 22.8 6.8 809 13926 European Southern Observatory, La Silla
8.60 13.6 O 3 1988/05/17 22.7 6.8 809 13926 European Southern Observatory, La Silla
8.59 8.2 O 1 1988/08/29 8.2 6.7 - - R West
8.59 14.9 O 3 1988/05/15 24.0 6.8 809 13926 European Southern Observatory, La Silla
8.59 14.5 O 3 1988/05/15 23.6 6.8 809 13926 European Southern Observatory, La Silla
8.59 14.4 O 3 1988/05/14 23.5 6.8 809 13926 European Southern Observatory, La Silla
8.59 14.0 O 3 1988/05/15 23.1 6.8 809 13926 European Southern Observatory, La Silla
8.59 14.0 O 3 1988/05/14 23.1 6.8 809 13926 European Southern Observatory, La Silla
8.41 8.2 O 1 1988/08/03 8.2 6.1 - - R West
8.35 8.3 O 1 1988/07/25 8.3 5.6 - - R West
8.22 10.3 O 9 1988/03/23 19.4 4.2 807 13356 Cerro Tololo Observatory, La Serena
8.18 13.9 I 2 1984/04/20 13.9 2.2 - - D Jewitt
8.16 9.2 O 3 1988/06/30 9.2 3.6 - - S Larson
8.16 13.1 I 2 1984/04/23 13.1 2.4 - - D Jewitt
8.15 14.4 I 2 1984/04/24 14.4 2.4 - - D Jewitt
8.02 14.7 I 0 1984/05/13 14.7 4.2 - - R West
8.02 14.4 I 0 1984/05/13 14.4 4.2 - - R West
8.01 8.4 O 3 1988/06/09 8.4 2.7 - - S Larson
8.01 8.0 O 1 1988/06/09 8.0 2.7 - - D Levy
8.01 7.7 O 1 1988/06/09 7.7 2.7 - - C Morris
8.01 14.1 I 0 1984/05/13 14.1 4.3 - - R West
8.01 14.0 I 0 1984/05/14 14.0 4.3 - - R West
8.01 13.9 I 0 1984/05/14 13.9 4.3 - - R West
8.01 13.8 I 0 1984/05/14 13.8 4.3 - - R West
8.01 13.8 I 0 1984/05/14 13.8 4.3 - - R West
8.01 13.8 I 0 1984/05/14 13.8 4.3 - - R West
8.00 14.2 I 0 1984/05/15 14.2 4.4 - - R West
8.00 14.2 I 0 1984/05/15 14.2 4.4 - - R West
8.00 14.0 I 0 1984/05/14 14.0 4.4 - - R West
8.00 14.0 I 0 1984/05/14 14.0 4.4 - - R West
7.99 13.8 I 0 1984/05/16 13.8 4.5 - - R West
7.99 13.8 I 0 1984/05/16 13.8 4.5 - - R West
7.99 13.8 I 0 1984/05/16 13.8 4.5 - - R West
7.99 13.7 I 0 1984/05/16 13.7 4.5 - - R West
7.99 13.7 I 0 1984/05/16 13.7 4.5 - - R West
7.99 13.7 I 0 1984/05/15 13.7 4.5 - - R West
7.99 13.7 I 0 1984/05/15 13.7 4.5 - - R West
7.99 13.5 I 0 1984/05/16 13.5 4.5 - - R West
7.99 13.5 I 0 1984/05/16 13.5 4.5 - - R West
7.97 13.1 I 0 1984/05/19 13.1 4.9 - - O Le Fevre
7.96 14.7 I 0 1984/05/21 14.7 5.1 - - O Le Fevre
7.96 13.5 I 0 1984/05/21 13.5 5.1 - - O Le Fevre
7.95 9.1 O 7 1988/02/14 17.9 2.8 691 12855 Steward Observatory, Kitt Peak-Spacewatch
7.95 14.8 I 0 1984/05/22 14.8 5.2 - - O Le Fevre
7.95 12.5 O 11 1988/02/14 21.3 2.8 691 12855 Steward Observatory, Kitt Peak-Spacewatch
7.94 13.4 I 0 1984/05/23 13.4 5.3 - - O Le Fevre
7.73 6.9 O 1 1988/05/01 6.9 5.7 - - D Levy
7.57 5.0 O 1 1988/04/09 5.0 7.2 - - A Hale
7.55 8.1 O 7 1988/04/07 8.1 7.3 - - Gehrels&Scotti
7.55 12.3 O 11 1988/04/07 12.3 7.3 - - Gehrels&Scotti
7.54 6.3 O 1 1988/04/06 6.3 7.4 - - D Levy
7.38 4.5 O 1 1988/03/15 4.5 7.7 - - A Hale
7.31 5.4 O 1 1988/03/06 5.4 7.6 - - D Levy
7.30 5.6 O 1 1988/03/05 5.6 7.5 - - D Levy
6.05 5.6 O 1 1987/10/02 5.6 8.7 - - D Levy
6.04 5.2 O 1 1987/09/30 5.2 8.9 - - A Hale
5.90 5.7 O 1 1987/09/14 5.7 9.7 - - D Levy
5.90 13.7 I 2 1985/02/06 13.7 9.3 - - K Meech
5.90 13.5 I 2 1985/02/06 13.5 9.3 - - K Meech
5.90 13.4 I 2 1985/02/06 13.4 9.3 - - K Meech
5.90 13.1 I 2 1985/02/06 13.1 9.3 - - K Meech
5.89 5.4 O 1 1987/09/13 5.4 9.7 - - E Jacobson
5.89 5.3 O 1 1987/09/13 5.3 9.7 - - E Jacobson
5.89 5.2 O 1 1987/09/13 5.2 9.7 - - C Morris
5.89 13.4 I 2 1985/02/08 13.4 9.2 - - K Meech
5.89 13.2 I 2 1985/02/08 13.2 9.2 - - K Meech
5.89 13.2 I 2 1985/02/08 13.2 9.2 - - K Meech
5.89 13.1 I 2 1985/02/08 13.1 9.2 - - K Meech
5.89 13.1 I 2 1985/02/08 13.1 9.2 - - K Meech
5.89 13.1 I 2 1985/02/08 13.1 9.2 - - K Meech
5.89 12.9 I 2 1985/02/08 12.9 9.2 - - K Meech
5.88 5.5 O 1 1987/09/11 5.5 9.8 - - A Hale
5.88 5.2 O 1 1987/09/11 5.2 9.8 - - R Keen
5.88 5.0 O 1 1987/09/12 5.0 9.7 - - R Keen
5.86 13.9 I 2 1985/02/11 13.9 9.1 - - K Meech
5.86 13.8 I 2 1985/02/11 13.8 9.1 - - K Meech
5.85 5.0 O 1 1987/09/08 5.0 9.8 - - A Hale
5.77 5.5 O 1 1987/08/30 5.5 9.9 - - E Jacobson
5.65 6.1 O 1 1987/08/15 6.1 9.5 - - J Merlin
5.63 5.1 O 1 1987/08/13 5.1 9.4 - - R van der Weg
5.63 4.8 O 1 1987/08/13 4.8 9.4 - - A Scholten
5.61 6.3 O 1 1987/08/12 6.3 9.3 - - D Green
5.61 6.0 O 1 1987/08/11 6.0 9.2 - - D Green
5.61 4.9 O 1 1987/08/12 4.9 9.3 - - A Hale
5.60 5.9 O 7 1987/08/10 5.9 9.2 - - J Scotti
5.60 5.3 O 1 1987/08/10 5.3 9.2 - - E Jacobson
5.60 13.5 I 0 1985/03/13 13.5 5.9 - - S Wyckoff
5.59 5.7 O 1 1987/08/09 5.7 9.1 - - R Keen
5.59 5.6 O 1 1987/08/09 5.6 9.1 - - R Keen
5.59 5.5 O 1 1987/08/09 5.5 9.1 - - D Levy
5.59 5.2 O 1 1987/08/09 5.2 9.1 - - A Hale
5.59 5.0 O 1 1987/08/09 5.0 9.1 - - A Hale
5.58 5.9 O 1 1987/08/08 5.9 9.0 - - R Keen
5.58 5.8 O 1 1987/08/08 5.8 9.0 - - R Keen
5.58 5.1 O 1 1987/08/08 5.1 9.0 - - A Hale
5.57 6.0 O 1 1987/08/07 6.0 9.0 - - R Keen
5.57 5.0 O 1 1987/08/06 5.0 8.9 - - R van der Weg
5.55 5.7 O 1 1987/08/05 5.7 8.8 - - C Morris
5.53 5.6 O 1 1987/08/02 5.6 8.5 - - E Jacobson
5.52 6.0 O 1 1987/08/01 6.0 8.5 - - J Merlin
5.52 5.6 O 1 1987/08/01 5.6 8.4 - - E Jacobson
5.51 6.1 O 1 1987/07/31 6.1 8.4 - - J Merlin
5.42 5.5 O 1 1987/07/21 5.5 7.2 - - E Jacobson
5.39 5.7 O 1 1987/07/18 5.7 6.8 - - A Hale
5.37 5.7 O 1 1987/07/16 5.7 6.6 - - E Jacobson
5.37 5.6 O 1 1987/07/16 5.6 6.6 - - E Jacobson
5.37 5.1 O 1 1987/07/15 5.1 6.6 - - E Bus
5.37 11.4 I 0 1985/04/07 11.4 3.0 - - J Merlin
5.36 5.1 O 1 1987/07/14 5.1 6.4 - - R van der Weg
5.36 12.4 I 0 1985/04/08 12.4 3.0 - - J Merlin
5.34 6.2 O 1 1987/07/12 6.2 6.1 - - R Keen
5.34 5.8 O 1 1987/07/12 5.8 6.1 - - A Hale
5.33 5.8 O 1 1987/07/11 5.8 6.0 - - C Morris
5.29 6.4 O 1 1987/07/07 6.4 5.5 - - D Levy
5.29 6.0 O 1 1987/07/07 6.0 5.5 - - W Hasubick
5.28 6.3 O 1 1987/07/06 6.3 5.3 - - R Keen
5.28 5.5 O 1 1987/07/06 5.5 5.4 - - E Jacobson
5.27 5.7 O 1 1987/07/05 5.7 5.2 - - A Hale
5.25 5.8 O 1 1987/07/03 5.8 5.0 - - C Morris
5.25 5.8 O 1 1987/07/03 5.8 5.0 - - C Morris
5.16 5.7 O 1 1987/06/23 5.7 4.3 - - E Jacobson
5.16 5.6 O 1 1987/06/22 5.6 4.3 - - A Hale
5.15 5.6 O 1 1987/06/22 5.6 4.3 - - E Jacobson
5.14 6.5 O 1 1987/06/21 6.5 4.3 - - R Keen
5.14 5.8 O 1 1987/06/20 5.8 4.3 - - E Jacobson
5.13 6.4 O 1 1987/06/19 6.4 4.3 - - R Keen
5.12 5.7 O 1 1987/06/18 5.7 4.4 - - E Jacobson
5.12 5.5 O 1 1987/06/18 5.5 4.4 - - A Hale
5.12 5.3 O 1 1987/06/18 5.3 4.3 - - A Hale
5.12 12.9 I 2 1985/05/05 12.9 7.0 - - K Meech
5.11 6.4 O 1 1987/06/17 6.4 4.4 - - R Keen
5.11 5.7 O 1 1987/06/17 5.7 4.4 - - E Jacobson
5.11 13.0 I 2 1985/05/06 13.0 7.2 - - K Meech
5.11 13.0 I 2 1985/05/06 13.0 7.2 - - K Meech
5.11 12.9 I 2 1985/05/06 12.9 7.2 - - K Meech
5.11 12.7 I 2 1985/05/06 12.7 7.2 - - K Meech
5.11 12.7 I 2 1985/05/06 12.7 7.2 - - K Meech
5.11 12.6 I 2 1985/05/06 12.6 7.2 - - K Meech
5.10 6.5 O 1 1987/06/16 6.5 4.4 - - R Keen
5.10 6.4 O 1 1987/06/16 6.4 4.4 - - R Keen
5.10 12.8 I 2 1985/05/07 12.8 7.4 - - K Meech
5.10 12.8 I 2 1985/05/07 12.8 7.4 - - K Meech
5.10 12.8 I 2 1985/05/07 12.8 7.4 - - K Meech
5.10 12.7 I 2 1985/05/07 12.7 7.4 - - K Meech
5.10 12.7 I 2 1985/05/07 12.7 7.4 - - K Meech
5.10 12.6 I 2 1985/05/07 12.6 7.4 - - K Meech
5.10 12.5 I 2 1985/05/07 12.5 7.4 - - K Meech
5.09 12.5 I 2 1985/05/08 12.5 7.6 - - K Meech
5.08 5.7 O 1 1987/06/14 5.7 4.6 - - E Jacobson
5.07 12.6 I 0 1985/05/10 12.6 8.0 - - S O'Meara
5.05 7.2 O 1 1987/06/11 7.2 4.9 - - W Morrison
5.04 5.6 O 1 1987/06/10 5.6 5.0 - - A Hale
5.04 5.4 O 1 1987/06/10 5.4 5.0 - - C Morris
5.03 5.4 O 1 1987/06/09 5.4 5.2 - - E Jacobson
5.02 7.2 O 1 1987/06/08 7.2 5.3 - - W Morrison
5.02 6.7 O 1 1987/06/08 6.7 5.3 - - D Green
5.02 5.4 O 1 1987/06/08 5.4 5.3 - - E Jacobson
5.01 7.2 O 1 1987/06/07 7.2 5.5 - - W Morrison
4.89 6.2 O 1 1987/05/25 6.2 7.6 - - R Keen
4.88 6.1 O 1 1987/05/24 6.1 7.8 - - R Keen
4.88 5.6 O 1 1987/05/24 5.6 7.8 - - A Hale
4.88 5.1 O 1 1987/05/24 5.1 7.8 - - C Morris
4.88 4.9 O 1 1987/05/24 4.9 7.8 - - C Morris
4.88 4.9 O 1 1987/05/24 4.9 7.8 - - C Morris
4.87 7.0 O 1 1987/05/23 7.0 8.0 - - W Morrison
4.84 5.6 O 1 1987/05/19 5.6 8.7 - - C Morris
4.84 12.8 I 0 1985/06/04 12.8 11.4 - - S Wyckoff
4.84 12.4 I 0 1985/06/04 12.4 11.4 - - D Tholen
4.83 12.5 I 0 1985/06/05 12.5 11.5 - - D Cruikshank
4.82 5.8 O 1 1987/05/18 5.8 8.9 - - R van der Weg
4.82 5.5 O 1 1987/05/17 5.5 9.0 - - A Hale
4.82 12.6 I 0 1985/06/06 12.6 11.6 - - D Cruikshank
4.81 12.5 I 0 1985/06/07 12.5 11.7 - - D Cruikshank
4.78 5.5 O 1 1987/05/13 5.5 9.7 - - C Morris
4.77 5.2 O 1 1987/05/12 5.2 9.8 - - A Hale
4.62 6.3 O 1 1987/04/27 6.3 11.8 - - R Keen
4.61 5.3 O 1 1987/04/26 5.3 11.9 - - A Hale
4.61 5.3 O 1 1987/04/25 5.3 12.0 - - C Morris
4.60 6.8 O 1 1987/04/25 6.8 12.0 - - W Morrison
4.56 5.6 O 1 1987/04/21 5.6 12.4 - - E Bus
4.56 5.4 O 1 1987/04/21 5.4 12.4 - - G Comello
4.56 5.3 O 1 1987/04/21 5.3 12.4 - - R Bouma
4.56 5.2 O 1 1987/04/20 5.2 12.4 - - A Hale
4.55 6.4 O 1 1987/04/20 6.4 12.4 - - R Keen
4.55 5.5 O 1 1987/04/20 5.5 12.4 - - G Comello
4.55 5.4 O 1 1987/04/20 5.4 12.4 - - R Bouma
4.55 5.3 O 1 1987/04/20 5.3 12.4 - - R Bouma
4.52 5.5 O 1 1987/04/17 5.5 12.7 - - G Comello
4.52 5.3 O 1 1987/04/17 5.3 12.7 - - R Bouma
4.52 5.3 O 1 1987/04/16 5.3 12.7 - - A Hale
4.52 5.0 O 1 1987/04/16 5.0 12.7 - - D Seargent
4.51 5.3 O 1 1987/04/16 5.3 12.7 - - R Bouma
4.51 5.0 O 1 1987/04/15 5.0 12.7 - - C Morris
4.50 5.5 O 1 1987/04/15 5.5 12.8 - - G Comello
4.50 5.3 O 1 1987/04/15 5.3 12.8 - - R Bouma
4.50 12.3 I 0 1985/07/09 12.3 12.1 - - S Wyckoff
4.49 5.4 O 1 1987/04/14 5.4 12.8 - - G Comello
4.49 5.0 O 1 1987/04/14 5.0 12.8 - - R Bouma
4.49 5.0 O 1 1987/04/13 5.0 12.8 - - C Morris
4.48 5.3 O 1 1987/04/12 5.3 12.9 - - G Comello
4.48 5.2 O 1 1987/04/13 5.2 12.9 - - R Bouma
4.48 5.1 O 1 1987/04/13 5.1 12.9 - - R Bouma
4.48 5.0 O 1 1987/04/12 5.0 12.9 - - A Hale
4.35 5.8 O 1 1987/03/30 5.8 13.1 - - W Morrison
4.34 5.0 O 1 1987/03/29 5.0 13.1 - - A Hale
4.32 5.0 O 1 1987/03/27 5.0 13.0 - - R Keen
4.30 6.4 O 1 1987/03/25 6.4 13.0 - - W Morrison
4.30 5.0 O 1 1987/03/25 5.0 13.0 - - C Morris
4.30 5.0 O 1 1987/03/25 5.0 13.0 - - C Morris
4.30 4.9 O 1 1987/03/25 4.9 13.0 - - C Morris
4.30 4.9 O 1 1987/03/25 4.9 13.0 - - C Morris
4.30 4.8 O 1 1987/03/25 4.8 13.0 - - D Seargent
4.26 5.5 O 1 1987/03/21 5.5 12.8 - - D Seargent
4.25 11.8 I 0 1985/08/03 11.8 9.9 - - S Wyckoff
4.24 5.3 O 1 1987/03/19 5.3 12.7 - - R Keen
4.24 5.0 O 1 1987/03/19 5.0 12.7 - - A Hale
4.24 4.9 O 1 1987/03/20 4.9 12.8 - - C Morris
4.24 4.8 O 1 1987/03/20 4.8 12.8 - - C Morris
4.22 4.9 O 1 1987/03/17 4.9 12.6 - - C Morris
4.22 4.7 O 1 1987/03/17 4.7 12.6 - - C Morris
4.22 4.6 O 1 1987/03/17 4.6 12.6 - - C Morris
4.21 5.9 O 1 1987/03/17 5.9 12.6 - - W Morrison
4.21 5.1 O 1 1987/03/17 5.1 12.6 - - W Hasubick
4.21 4.6 O 1 1987/03/17 4.6 12.6 - - C Morris
4.20 6.0 O 1 1987/03/15 6.0 12.5 - - D Seargent
4.19 5.1 O 1 1987/03/15 5.1 12.5 - - C Morris
4.19 4.7 O 1 1987/03/15 4.7 12.5 - - C Morris
4.18 5.9 O 1 1987/03/14 5.9 12.4 - - W Morrison
4.18 5.1 O 1 1987/03/14 5.1 12.4 - - A Hale
4.00 4.3 O 1 1987/02/24 4.3 10.7 - - R Keen
3.98 5.3 O 1 1987/02/22 5.3 10.4 - - C Morris
3.95 5.3 O 1 1987/02/20 5.3 10.2 - - A Hale
3.94 5.0 O 1 1987/02/19 5.0 10.0 - - C Morris
3.91 5.4 O 1 1987/02/16 5.4 9.6 - - D Machholz
3.91 5.4 O 1 1987/02/16 5.4 9.6 - - A Hale
3.90 5.4 O 1 1987/02/15 5.4 9.5 - - A Hale
3.16 8.1 I 0 1985/11/10 8.1 10.6 - - J Merlin
3.15 9.1 I 0 1985/11/11 9.1 10.7 - - C Morris
3.15 8.1 I 0 1985/11/11 8.1 10.8 - - J Merlin
3.15 6.6 I 0 1985/11/11 6.6 10.7 - - A Hale
3.14 9.2 I 0 1985/11/12 9.2 11.0 - - C Morris