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Дата изменения: Tue Jan 21 18:03:54 2014 Дата индексирования: Fri Feb 28 01:56:46 2014 Кодировка: |
COMETS In 2004 the 17 periodical comets will return to perihelions. Two of them may be visible with the naked eye. |
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Name |
Perihelion |
Period |
Number |
Perihelion |
Eccentricity |
Magnitude |
---|---|---|---|---|---|---|
58P/Jackson - Neujmin |
Jan. 10 |
8.27 |
5 |
1.39 |
0.66 |
16.5m |
C/2003 A2 (Gleason) |
Jan. 16 |
- |
1 |
11.43 |
1.01 |
19.2m |
40P/Vaisala 1* |
Jan. 23 |
10.8 |
6 |
1.80 |
0.63 |
14.5m |
C/2003 E1 (NEAT) |
Feb. 13 |
50.8 |
1 |
3.25 |
0.76 |
17.8m |
C/2003 H1 (LINEAR) |
Feb. 23 |
|
1 |
2.24 |
1.0 |
10.6m |
43P/Wolf - Harrington* |
Mar. 18 |
6.45 |
9 |
1.58 |
0.54 |
12.0m |
C/2002 L9 (NEAT) |
Apr. 6 |
- |
1 |
7.03 |
1.00 |
16.4m |
88P/Howell |
Apr. 13 |
5.50 |
5 |
1.37 |
0.56 |
10.3m |
Apr. 23 |
- |
1 |
0.61 |
1.00 |
0.27m ! | |
104P/Kowal 2 |
May 10 |
6.18 |
3 |
1.40 |
0.59 |
13.7m |
May 16 |
- |
1 |
0.96 |
1.00 |
2.45m ! | |
103P/Hartley 2 |
May 18 |
6.40 |
3 |
1.04 |
0.70 |
9.8m |
P/1996 R2 (Lagerkvist) |
June 7 |
7.39 |
1 |
2.62 |
0.31 |
16.7m |
29P/Schwassmann - Wachmann 1 |
July 11 |
14.7 |
5 |
5.72 |
0.04 |
13.1m |
42P/Neujmin 3 |
July 16 |
10.7 |
4 |
2.01 |
0.58 |
18.5m |
121P/Shoemaker - Holt 2 |
Sept. 2 |
8.01 |
2 |
2.65 |
0.34 |
16.8m |
120P/Mueller 1 |
Sept. 30 |
8.43 |
2 |
2.75 |
0.34 |
17.2m |
48P/Johnson |
Oct. 12 |
6.96 |
8 |
2.31 |
0.37 |
16.3m |
130P/McNaught - Hughes |
Oct. 23 |
6.67 |
2 |
2.10 |
0.41 |
15.8m |
78P/Gehrels 2 |
Oct. 27 |
7.22 |
4 |
2.01 |
0.46 |
10.8m |
131P/Mueller 2 |
Dec. 18 |
7.07 |
2 |
2.42 |
0.34 |
15.8m |
111P/Helin - Roman - Crockett |
Dec. 27 |
8.12 |
2 |
3.47 |
0.14 |
18.5m |
* Jupiter comet family. |
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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Note: All the times in this page
are expressed in universal time (UT). |