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Celestial calendar - Comets
Celestial calendar

COMETS

      

In 2006 the 20 periodical comets will return to perihelions.

 

Name

Perihelion
Time

Period
(years)

Number
of appearance

Perihelion
Distance (AU)

Eccentricity

Magnitude
(max)

132P/Helin-Roman-Alu

Feb. 15

8.28

2

1.92

0.53

17.2m

98P/Takamizawa

Mar. 6

7.40

3

1.66

0.56

15.1m

83P/Russell

Apr. 8

7.62

2

2.17

0.44

19.4m

P/1999 RO28(LONEOS)

May 12

6.61

1

1.23

0.65

23.0m

71P/Clark

June 7

5.52

6

1.56

0.50

11.4m

102P/Shoemaker

June 7

7.23

2

1.97

0.47

18.3m

73P/Schwassmann-Wachmann

June 7

5.36

5

0.94

0.69

4.9m

41P/Tuttle-Giacobini-Kresak

June 11

5.42

9

1.05

0.66

10.8m

45P/Honda-Mrkos-Pajdusakova

June 30

5.25

10

0.53

0.82

7.6m

P/1999 X1 (Hug-Bell)

July 7

7.06

1

1.95

0.47

>18m

84P/Giclas

Aug. 7

6.97

5

1.85

0.49

15.0m

52P/Harrington-Abell

Aug. 15

7.54

7

1.76

0.54

16.4m

114P/Wiseman-Skiff

Sept. 13

6.68

3

1.58

0.56

15.3m

80P/Peters-Hartley

Sept. 26

8.14

4

1.63

0.60

14.1m

112P/Urata-Niijima

Oct. 30

6.67

3

1.46

0.59

11.1m

P/2000 C1 (Hergenrother)

Nov. 7

6.62

1

2.09

0.41

17.9m

4P/Faye

Nov. 15

7.55

19

1.67

0.57

10.0m

P/1991 V1 (Shoemaker-Levy)

Nov. 17

7.53

1

1.13

0.71

13.0m

76P/West-Kohoutek-Ikemura

Nov. 20

6.48

4

1.60

0.54

13.6m

P/2000 R2 (LINEAR)

Dec. 15

6.13

1

1.46

0.56

21.1m

 

 

Glossary

Astronomical Unit (AU):

middle distance from Earth to Sun, equal 149.6 millions km.

Eccentricity:

a parameter that specifies the shape of a conic section; one of the standard elements used to describe an elliptic orbit.

Perihelion::

the point at which a body in orbit around the Sun most closely approaches the Sun.

Period:

the interval of time required to complete one revolution in an orbit or one cycle of a periodic phenomenon, such as a cycle of phases.

 

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