Posts Tagged ‘Mercury Greatest Western Elongation’

October 2009

Thursday, October 1st, 2009

Lunar Events

The Full Moon for October occurs on October 3rd.  Being the Full Moon closest to the Autumnal Equinox, it is the Harvest Moon.

The New Moon for the month occurs on Saturday, October 17th, which make the weekend of October 17-18 as the best weekend for dark sky observation

Mercury

Mercury is visible in the morning during the first half of October and disappears into the glare of the sunrise around October 18thMercury begins this month in the constellation Leo (The Lion) until October 4th when it crosses into the constellation Virgo (The Maiden).

Mercury Elongation On October 5th, Mercury reaches its Greatest Western Elongation, which is the best morning view for its current orbit.  Mercury is 17°56’42” from the Sun at this day and rising over a hour before the Sun.
On October 8th, Mercury, Venus and Saturn are in triple conjunction being less than 5°50’ of each other. Mercury and Saturn are a mere 0°30′ from each other.
M2ercury, Venus and Saturn

Venus

Venus is the Morning Star this month. Venus starts October in the constellation Leo (The Lion) and on October 9th moves into the constellation Virgo (The Maiden) where it will spend the rest of the month.

M2ercury, Venus and Saturn On October 8th, Mercury, Venus and Saturn are in triple conjunction being less than 5°50’ of each other. Mercury and Saturn are a mere 0°30′ from each other.
On October 13th, Venus is a mere 0°30’ from Saturn.
Mercury, Venus and Saturn

Mars

Mars is visible from the early morning hours of October.  Mars rises around 12:45 am (PDT) at the beginning of the month and rises around midnight by the end of the month.  Mars begins the month in the constellation Gemini (The Twins) until October 12th when it moves into the constellation Cancer (The Crab) where it will spend the remainder of the month.

On October 11th, the waning, crescent Moon will pass less than 2° of Mars.

Mars and M44
On October 31st through November 2nd, Mars will pass through the
Beehive Cluster (M44).

Jupiter

Jupiter is observable in the morning hours of October, rising around 2:45 am (PDT) at the beginning of the month and rising around 12:50 am (PDT at the end of the month.  Jupiter is located in the constellation Capricornus (The Sea Goat) until January 2010.  Jupiter is in retrograde motion until October 12th.

On October 26th, the waxing, gibbous Moon passes with 2°45’ of Jupiter.
Jupiter, Neptune and Moon

Saturn

Saturn appears briefly in the morning hours of October.  At the beginning of the month Saturn rises about 5:55 am (PDT) and by the end of October, Saturn rises around 4:15 am (PDT).  Saturn is located in the constellation Virgo (The Maiden) until December 2012.

M2ercury, Venus and Saturn On October 8th, Mercury, Venus and Saturn are in triple conjunction being less than 5°50’ of each other. Mercury and Saturn are a mere 0°30′ from each other.
On October 13th, Venus is a mere 0°30’ from Saturn.
Mercury, Venus and Saturn

As October proceeds, Saturn continues to improve its position rising earlier and earlier and further away from the Sun.

Uranus

Uranus begins the month in the constellation Pisces (The Fish) until October 13th when it passes into the constellation Aquarius (The Water Bearer) where it will remain until January 2010.  Uranus is observable most of the night, setting around 5:45 am (PDT) at the start of October and setting around 3:40 am (PDT) at the end of the month.

Uranus and Moon
On October 2nd, the waxing, gibbous Moon passes within 5°30’ of Uranus.

Neptune

Neptune is located in the constellation Capricornus (The Sea Goat) until the year 2010.  Neptune is viewable until the very early morning hours of October, setting around 3:20 am (PDT) at the beginning of October at setting around 1:20 am (PDT) at the end of the month. 

Neptune and Jupiter Neptune can be found within 6° of the planet Jupiter for the entire month of October.

Neptune continues in retrograde motion until November 5th.

Pluto

Located in the constellation Sagittarius (The Archer) until the year 2023, Pluto is observable in the evening hours of October.  Pluto sets around 11:20 pm (PDT) at the start of October and sets around 9:20 pm (PDT) at its end.

On October 22nd, the waxing, crescent Moon passes about 4°20’ of Pluto.
Pluto and Moon

August 2009

Saturday, August 1st, 2009

Lunar Events

The Full Moon for August occurs on August 5th.  It is known as the Full Sturgeon Moon.  It is also known as the Grain or Green Corn Moon. On August 5th, there will be a Penumbral Lunar Eclipse visible from Africa, South America, Europe and the Middle East.

The New Moon occurs on Thursday, August 20th.  This will make the weekend of August 22-23 as the best weekend for dark sky viewing this month.

Mercury

M2ercury Opposition
The planet Mercury is visible in the evening this month and reaches its

Greatest Eastern Elongation on August 24thMercury’s Greatest Eastern

Elongation provides the best evening view for its current orbit. At this

point, Mercury is 27°21’55” from the Sun, making it visible for almost

2 hours after sunset.

Mercury begins August in the constellation Leo (The Lion) until August 20th when it moves into the constellation Virgo (The Maiden).

On August 1st Mercury is a mere 0°40’ from the star Regulus.

Mercury, Saturn
On August 16th Mercury passes within 3° from the planet Saturn.

M2ercury, Moon
On August 21st, the waxing crescent Moon passes less than 5°30 on
Mercury.

Venus

Venus is the Morning Star for August. Venus begins this month in the constellation Gemini (The Twins) and on August 24th, Venus moves into the constellation Cancer (The Crab).

On August 2nd, Venus is within 2°30’ of the open cluster, M35. Venus M35

Mars

Mars is observable during the morning hours of August.  At the beginning of the month Mars rises around 2:00 am (PDT) and by the end of the month Mars rises around 1:20 am (PDT).  Mars begins this month in the constellation Taurus (The Bull) and on August 25 it moves into the constellation Gemini (The Twins) where it will finish out the month.

On August 15th and 16th Mars is located about 7° from the waning crescent Moon.

Mars M35 On August 29th, Mars will pass within 0°50’ of the open cluster, M35.

Jupiter

This month is the best time to observe Jupiter this year since Jupiter reaches opposition on August 14thJupiter is visible all night, all month in the constellation Carpicornus (The Sea Goat), where it can be found until January 2010.  Currently, Jupiter is moving in retrograde motion.

On August 6th, Jupiter sets within 4°45’ of the Full Moon. Jupiter Moon

Saturn

Saturn is visible in the early evening hours during August.  At the beginning of the Month Saturn sets around 9:50 pm (PDT) and by the end of August Saturn sets around 8:00 pm (PDT). Saturn is located in the constellation Leo (The Lion) until September.  Saturn disappears into the glare of the Sunset at the end of August.

Saturn Mercury
On August 16th, Mercury passes within 3° from the planet Saturn.

Uranus

Uranus is located in the constellation Pisces (The Fish) until October.  At the beginning of August Uranus rises around 10:05 pm (PDT) and by the end of the month Uranus rises around 8:00 pm (PDT).

Uranus Moon
On August 9th, the waning, gibbous moon passes within 5° of Uranus.

Neptune

Moving in retrograde this month, the planet Neptune is visible, all night, since it will reach Opposition on August 17th.  This month will be the best time this year to observe Neptune, which is located in the constellation Capricornus (The Sea Goat) until the year 2010.

Neptune JupiterNeptune starts August less than 1°50’ from the planet Jupiter.

N2ptune, Jupiter Moon
And on August 6th, Neptune, Jupiter and the waning, gibbous Moon can be found less than 5° of each other.

 

Pluto

Pluto can be observed in the morning hours of August in the constellation Sagittarius (The Archer), where it is located unto the year 2023.  The planet Pluto is currently in retrograde motion.

August 2nd finds Pluto about 9° from the waning, gibbous Moon. Pluto Moon

June 2009

Monday, June 1st, 2009

Summer Solstice

Summer begins on June 20th (22:46 PDT) when the Summer Solstice occurs. The Summer Solstice occurs when the tilt of the Earth is pointed directly toward the Sun.  This point marks the beginning of Summer.  The Summer Solstice has the longest amount of daylight and the shortest night.

Lunar Events

The New Moon for June occurs on Monday, June 22nd, which will make the weekend of June 20-21 the best weekend for dark sky viewing.

The Full Moon for June occurs on June 7th, and is known as the Full Strawberry Moon or Rose Moon.

Mercury

Mercury is located in the constellation Taurus (The Bull) for the entire month.

June 12 - Mercury Opposition
The Planet Mercury is observable during the morning hours all month

and reaches its Greatest Western Elongation on June 13 for the best
morning view in this orbit.  On this date, Mercury will be 23°27′17″
from the sun.
 

On June 12th, Mercury will pass within 8° of the asterism Pleiades (M45).

June 21 - Mercury and Moon
On June 21st, Mercury will rises within 6°30′ of the waning, crescent moon.

Venus

Venus is the Morning Star all month and will reach its Greatest Western Elongation on June 5th, and will be 45°50′58″ from the sun.  Venus begins June in the constellation Pisces (The Fish) until June 9th when it briefly crosses through the constellation Cetus (The Sea Monster).  The next day, June 10th, Venus moves into the constellation Aries (The Ram) until it crosses into the constellation Taurus (The Bull) on June 28th, where it will spend the rest of the month.

June 19 - Venus, Mars and Moon
June 19th, will find Venus, Mars and a waning, crescent moon within
7°15′ of each other.

On June 22, Venus and Mars will be in conjunction less than 1°50′ apart.

Mars

Mars is observable in the morning hours of June, rising around 3:40 am (PDT) at the beginning of the month and rising around 2:45 am (PDT) by the end of the month. Mars is located in the constellation Aries (The Ram) for the entire month of June.

June 19th, will find Mars, Venus and a waning, crescent moon within 7°15′ of each other.

June 22 - V2enus and Mars
On June 22, Mars and Venus will be in conjunction less than 1°50′ apart.

Jupiter

Jupiter is located in the constellation Capricorn (The Sea Goat) until January 2010. Jupiter is observable from the very late evening until sunrise this month.  At the beginning of June Jupiter rises around 12:50 am (PDT) and by the end of the month Jupiter will rise around 10:50 pm (PDT).

June 13 - Jupiter, Neptune and MoonJupiter, Neptune and a waning, gibbous moon will come to conjunction
on June 13 being less than 3° from each other.

On June 15, Jupiter will start retrograde motion and will continue to appear moving eastward across the stars until October 12th, when it will resume apparent normal motion.

Saturn

Saturn is observable during the evening and late hours of June.  Saturn sets around 1:40 am (PDT) at the beginning of the month and sets around 11:50 pm by the end of the month.  Saturn is located in the constellation Leo (The Lion) until September.

June 27 - Saturn and Moon
On June 27 around 11:40 pm (PDT) Saturn sets within 8°25′ from the
waxing , crescent moon.

Uranus

Uranus is located in the constellation Pisces (The Fish) until October.  Uranus can be observed during the morning hours this month.  Uranus rises around 2:10 am (PDT) at the start of June and by the end is ring around 12:15 am (PDT).

June 15 - Uranus
June 15, 2009 - The relative position of Uranus in the sky for mid-June.

Neptune

Neptune is located in the constellation Capricornus (The Sea Goat) until the year 2010.  Neptune is observable during the morning hours of June, rising around 12:45 am (PDT) at the start of the month and rises around10:45 pm (PDT) by the end of June.

June 13 - Jupiter, Neptune and MoonJupiter, Neptune and a waning, gibbous moon will come to
conjunction on June 13 being less than 3° from each other.

Neptune is moving in retrograde motion until November 5th.

Pluto

Pluto is observable all night, all month and is located in the constellation Sagittarius (The Archer) until the year 2023.  Pluto is moving in retrograde motion until September 12th.

June 15 - Pluto
June 15, 2009 - The relative position of Pluto in mid-June.


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