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Astronomical
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June 2009
5: Venus at most westerly elongation
7: Full Moon
13: Mercury at most westerly elongation
15:
Moon in Last Quarter
21: Summer Solstice (beginning of summer)
21: Pluto closest to Earth (30,65au)
22: New Moon
23: Pluto in opposition with the Earth
29: Moon in
First Quarter
May 2009
1:
Moon in First Quarter
9: Full Moon
17: Moon in Last Quarter
18:
Mercury in lower conjunction with the Earth
19:
Mercury closest to Earth (0,55au)
24: New Moon
31: Moon in First Quarter
April 2009
2:
First Quarter Moon
9:
Full Moon
15:
Mars and Uranus are just 31 apart. Very low in East at 5:35am
17:
Last Quarter Moon
26:
Mercury Greatest Eastern Elongation. 20 degrees above horizon at the time of
sunset
March 2009
2: Mars and Mercury are just 35
apart. Very low in East at dawn in 6:30am
11: Full Moon
13: Uranus conjunction
28: Venus Inferior Conjunction
30: A Crescent Moon occults M45
February 2009
13:
Neptune in the largest distance from the Earth. Neptun will be at 32,04 AU from Earth, or about
4.8 milliard km from Earth.
January 2009
4: The planet Mercury is at its greatest elongation.
An elongation takes place whenever Mercury lies at its greatest distance
from the sun, as seen from Earth.
Mercury is an inner planet, it's orbit around the Sun is inside the Earth
orbit, so Mercury in this elongation can be seen for 1.5 hour after sunset
and 1.5 hours before sunrise. In every 4 months Mercury is at it's greatest
elongation this is the synodic period of Mercury.
14: The planet Venus is at its greatest elongation
(47 Degrees).
An elongation takes place whenever Venus lies at its greatest distance
from the sun, as seen from Earth.
Venus is an inner planet, it's orbit around the Sun is inside the Earth
orbit, so Venus in this elongation can be seen for 3 hour after sunset and 3
hours before sunrise. In every 20 months Venus is at it's greatest
elongation this is the synodic period of Venus.
22: Mercury closest to Earth (0.66 AU).
One AU is the distance of the Earth from the Sun, some 150 million km.
Mercury is the planet closest to the Sun, at an average distance from the
Sun of about 58 million kilometers. Thursday, 22 January 2009, the Earth and
Mercury will get closer nearly 100 million km from each-other. Then mercury
and the Earth will move out until 200 million km. In 22 January is the best
moment for observation of this planet.
23: Jupiter will be in the largest point from Earth
(6.09 Nj.A.).
Jupiter is a outer planet. Jupiter orbit the sun at the distance of 780
million km. The Earth-Jupiter distance varies from 620 to 930 million km. In
23 January, Jupiter will be at the farthest point from Earth measuring about
912 million km.
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