July Full Moon at Apogee, Descending Node, A Lunar Eclipse, and Conjunction with Mars

Apogee Moon
   Our Moon reaches apogee, (greatest distance from Earth), on Friday July 27nd. At that time the Moon will more or less be at a distance of 31.84 Earth diameters (406,223 km or 252,415. miles) from the Earth.
   Does our Moon actually go around the Earth as this graphic shows? From our perspective on the Earth the Moon appears to circle around the Earth. However, in reality, the Moon orbits the Sun together with the Earth*
*Click here to read my 2006 Scope on the Sky column “The Real Shape of the Moon’s Orbit”. (PDF)
Read this very informative article about the Earth-Moon system and their orbital motions, written by Joe Hanson. “Do We Orbit the Moon?”

Descending Node
   Friday July 27th the full Moon will be crossing the plane of the ecliptic moving south. This is known as the descending node, one of two intersections the Moon’s orbital path (dark green line) has with the ecliptic.

Total Lunar Eclipse
   When the Moon crosses the ecliptic, a node crossing, and the Moon is either at full or new phase there will be an eclipse. The length of the eclipse and whether or not it will be partial or total depends upon the timing. The closer the two events are to each other the greater the eclipse. This total lunar eclipse will be a long one at nearly 2 hours for totality. However the eclipse will not be visible from North America.
   Get eclipse information from the Hermit Eclipse web site.
   Watch the Lunar Eclipse live. Webcast hosted by the Bareket Observatory in Israel. Webcast starts at 18:30 UTC (1:30 pm CDT).

Conjunction
   On the day of the apogee and descending node the full Moon will be over the southern horizon and within about 6-7o from the planet Mars.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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June Moon at Descending Node and Conjunction with Mars


   Sunday June 3rd the waning gibbous Moon will be crossing the plane of the ecliptic moving south. This is known as the descending node, one of two intersections the Moon’s orbital path (dark green line) has with the ecliptic.
   


   On the morning of the node crossing the 19-day old waning gibbous Moon will be over the south-southeastern horizon about an hour before the Sun rises local time. The Moon will also be about 3o from the ‘red planet’ Mars. Off to the west is the planet Saturn nestled within the glow of the eastern side of the Milky Way.

   Depending on how dark the sky is where you are viewing from and how early you want to go outside, the area around Saturn is rich with some of the best deep-sky objects visible with binoculars. So the earlier you are out, before moonrise, the darker the sky will appear making it easier to see some of Messier Objects in the area near Saturn.

   
   
   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to go to bobs-spaces.

May Moon at Descending Node


   Monday May 7th the waning gibbous Moon will be crossing the plane of the ecliptic moving south. This is known as the descending node, one of two intersections the Moon’s orbital path (dark green line) has with the ecliptic.
   
   
   

   On the day of the node crossing the 21-day old waning gibbous Moon will be over the southeastern horizon about an hour before the Sun rises.

   
   
   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to go to bobs-spaces.

Orbital Ups and Downs


   All solar orbiting objects will at some point in their respective orbit cross the plane of the ecliptic. The ecliptic is actually the Earth’s orbit around the Sun, however from our perspective on the Earth it appears as if the Sun is moving eastward along the ecliptic.
   On April 12th the inner planet Venus will be at its ascending node as it crosses the ecliptic moving north. And the next day, April 13th, Mercury will be at its descending node moving south as it crosses the ecliptic.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

April Moon at Descending


   Tuesday April 10th the thin waning crescent Moon will be crossing the plane of the ecliptic moving south. This is known as the descending node, one of two intersections the Moon’s orbital path (dark green line) has with the ecliptic.
   
   
   


   On the day of the node crossing the 24-day old waning crescent Moon will be over the eastern horizon about an hour before the Sun rises.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to go to bobs-spaces.

March Moon at Descending Node


   Wednesday March 14th the thin waning crescent Moon will be crossing the plane of the ecliptic moving south. This is known as the descending node, one of two intersections the Moon’s orbital path (dark green line) has with the ecliptic.
   
   
   


   On the day of the node crossing the 26-day old waning crescent Moon will be over the eastern horizon about an hour before the Sun rises.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to go to bobs-spaces.

February Moon at Descending Node


   Wednesday February 14th the thin waning crescent Moon will be crossing the plane of the ecliptic moving south. This is known as the descending node, one of two intersections the Moon’s orbital path (dark green line) has with the ecliptic.
    
   
     

   On the day of the node crossing the 28-day old waning crescent Moon will be over the eastern horizon about an hour before the Sun rises. The Moon will reach new phase approximately 24 hours after this node crossing.
   
   
   
      

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to go to bobs-spaces.