Moon – Regulus Conjunction

   Wednesday morning November 20th watch for the 3rd quarter Moon to be about 5-6o to the east from the heart of Leo the Lion, the star Regulus. This graphic shows the skies at 1:00 am CST – my time zone, and is great for those up late or cannot sleep!
   However a more reasonable time for seeing this conjunction may be a few hours later as the Sun rises.
   
   
   
   
   

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The Leonids Peak and the Moon May Get Stung!

   Sunday night November 17th the 21-day old waning gibbous Moon will pass by the open star cluster M-44, aka the Beehive Cluster. M-44 is a group of stars, an Open Star Cluster, approximately 160 light years distant, within the constellation of Cancer the Crab. Actually seeing the stars in M-44 may not be possible due to the difference in the apparent magnitude of the Moon (-12.4) and the Beehive Cluster (3.4).
   Over the hours when the Moon is above the horizon it will pass by the Beehive Cluster. From some locations you may be able to see the Moon eclipse some of the stars.

   The Leonid Meteor Shower reaches its peak at 6 UT November 18th which for the U.S.A. Central Time Zone (UT-6) the peak is at 12:00 am CST, (just after 11:59 pm CST on the 17th). This means that for my location Leo and the meteor radiant rise around midnight. And then after the meteor radiant and the constellation are above the horizon the reflected sunlight from the Moon will brighten the sky making it difficult to see any but the very brightest meteors.

   
   
   

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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November Moon at Ascending Node

   Late in the evening of Saturday night November 16th the 20-day old waning gibbous Moon rises. As it is rising the Moon will be crossing the plane of the ecliptic moving north. This is known as the ascending node, one of two intersections the Moon’s orbital path has with the ecliptic. The ecliptic is actually the Earth’s orbit and the Moon’s orbit is inclined about 6o from the ecliptic. So there are two node intersections, the ascending and descending nodes.

   On the day of the node crossing the waning gibbous Moon will be about 7o from the star Pollux in the constellation of the Gemini Twins.

   Does our Moon actually go around the Earth as many graphics show? 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)

   
   
   

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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Moon – Hyades Conjunction

   Wednesday evening November 13th watch for the 17-day old waning gibbous Moon to be rising with the stars of the Hyades, a v-shaped open cluster of stars making up the face of the Bull. The Moon will be about 1o from the brightest of the stars in the Hyades, the reddish star Aldebaran. Both, as well as the v-shaped Hyades will easily fit within the field of view of binoculars.
   From mythology Aldebaran with its reddish color represents the angry eye of Taurus. In that mythology the angry bull has its head lowered as it appears to be reading an attack on Orion the Hunter.

   
   
   

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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Venus – Antares Conjunction

   Friday evening November 8th the inner planet Venus will be about 4-5o from the reddish star Antares in Scorpius the Scorpion. Both will easily fit within the field of view of binoculars. Along with Venus there are several planets visible as this graphic shows.

   
   
   

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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November Moon at Apogee

   Our Moon reaches apogee, (greatest distance from Earth), for this orbit, on Thursday November 7th. At that time the Moon will be at a distance of 31.75 Earth diameters 251,693 miles (405,060 km) from the Earth.

   On the day of the apogee Moon the 11-day old waning gibbous Moon rises during mid-afternoon and sets later the following morning.

   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)

   
   
   

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.


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Visualize the Ecliptic

Above the Terrestrial Planets this Month

   Once in a while the planets are arranged such that they are spread across the sky. The planets are not lined up in a straight line outward from the Sun but rather are arranged along the ecliptic. The ecliptic is the Earth’s orbital path around the Sun and the respective orbit of each planet is inclined from the ecliptic. And this is one of those times when it is easier to visualize the ecliptic. (see graphics below) Click here to read a previous posting about the ecliptic and planet inclination.

   As the animated graphic is showing the terrestrial planets are not arranged in a straight line. This graphic shows the solar system out to Neptune and from this perspective the planets are obviously not in a straight line.


   
   
   

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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