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Дата изменения: Tue Jan 21 17:45:37 2014 Дата индексирования: Fri Feb 28 02:11:43 2014 Кодировка: Поисковые слова: saturn |
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Celestial calendar Visibility of Small Solar-System Bodies |
On August 24, 2006, astronomers at the 26th General Assembly of the International Astronomical Union in Prague declare that (1) Ceres is no longer a asteroid. Now Ceres will be known as "dwarf planet".
|
Name |
Opposition |
Magnitude |
Diameter |
Mean |
Daily |
Eccentricity |
---|---|---|---|---|---|---|
(40) Harmonia |
Jan. 12, 2009 |
+9.5m |
108 |
2.27 |
0.29° |
0.05 |
(27) Euterpe |
Feb. 4 |
+8.8m |
118 |
2.35 |
0.27° |
0.17 |
(29) Amphitrite |
Mar. 21 |
+9.1m |
212 |
2.55 |
0.24° |
0.07 |
(15) Eunomia |
Apr. 8 |
+9.8m |
320 |
2.64 |
0.23° |
0.19 |
(8) Flora |
Apr. 19 |
+9.8m |
138 |
2.20 |
0.30° |
0.16 |
(14) Irene |
Apr. 20 |
+8.9m |
180 |
2.58 |
0.24° |
0.17 |
(6) Hebe |
May 2 |
+9.9m |
190 |
2.42 |
0.26° |
0.20 |
(7) Iris |
July 4 |
+8.7m |
211 |
2.39 |
0.27° |
0.23 |
(16) Psyche |
Aug. 6 |
+9.3m |
239 |
2.92 |
0.20° |
0.14 |
(3) Juno |
Sept. 21 |
+7.6m |
274 |
2.67 |
0.23° |
0.25 |
(20) Massalia |
Sept. 24 |
+9.2m |
145 |
2.41 |
0.26° |
0.14 |
(89) Julia |
Oct. 10 |
+9.3m |
151 |
2.55 |
0.24° |
0.18 |
(18) Melpomene |
Oct. 10 |
+7.9m |
138 |
2.30 |
0.28° |
0.22 |
(11) Parthenope |
Dec. 26 |
+9.9m |
153 |
2.45 |
0.26° |
0.10 |
(324) Bamberga |
Dec. 27 |
+9.8m |
228 |
2.68 |
0.22° |
0.34 |
(10) Hygiea |
Feb. 7, 2010 |
+9.8m |
444 |
3.14 |
0.18° |
0.12 |
(532) Herculina |
Mar. 13, 2010 |
+8.8m |
207 |
2.77 |
0.21° |
0.18 |
(7) Iris
is at opposition on July 4, 2009
Date |
Apparent |
Apparent |
Magnitude |
Distance | |
---|---|---|---|---|---|
for 0 hour UT |
from Sun (AU) |
from Earth (AU) | |||
June 18 |
19h 09.6m |
-19° 34' |
+9.2m |
2.61 |
1.63 |
July 8 |
18h 49.0m |
-19° 18' |
+8.8m |
2.57 |
1.56 |
July 28 |
18h 29.3m |
-19° 07' |
+9.2m |
2.52 |
1.58 |
(3) Juno
is at opposition on September 21, 2009
Date |
Apparent |
Apparent |
Magnitude |
Distance | |
---|---|---|---|---|---|
for 0 hour UT |
from Sun (AU) |
from Earth (AU) | |||
July 28 |
0h 10.7m |
+3° 54' |
+9.1m |
2.35 |
1.66 |
Aug. 27 |
0h 13.4m |
+1° 07' |
+8.3m |
2.27 |
1.34 |
Sept. 26 |
23h 56.8m |
-4° 52' |
+7.7m |
2.20 |
1.20 |
Oct. 26 |
23h 42.0m |
-9° 59' |
+8.3m |
2.13 |
1.28 |
Nov. 25 |
23h 50.5m |
-10° 53' |
+8.8m |
2.08 |
1.51 |
(18) Melpomene
is at opposition on October 10, 2009
Date |
Apparent |
Apparent |
Magnitude |
Distance | |
---|---|---|---|---|---|
for 0 hour UT |
from Sun (AU) |
from Earth (AU) | |||
Aug. 27 |
1h 35.4m |
+0° 45' |
+8.8m |
1.81 |
0.98 |
Sept. 16 |
1h 41.1m |
-2° 57' |
+8.3m |
1.80 |
0.86 |
Oct. 6 |
1h 33.8m |
-7° 25' |
+7.9m |
1.79 |
0.81 |
Oct. 26 |
1h 20.9m |
-10° 34' |
+8.1m |
1.80 |
0.85 |
Nov. 15 |
1h 14.0m |
-10° 56' |
+8.6m |
1.81 |
0.95 |
Glossary Astronomical Unit (AU): middle distance between Earth and 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. Mean Distance: the semimajor axis of an elliptic orbit. Opposition: a configuration of the Sun, Earth and a planet in which the apparent geocentric longitude of the planet differs by 180° from the apparent geocentric longitude of the Sun. Semimajor Axis: half the length of the major axis of an ellipse; a standard element used to describe an elliptical orbit. |
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Note:
All time moments are given in Universal Time (UT) units. |