Waxing Crescent Moon Passes Jupiter and Saturn

   Wednesday and Thursday evenings November 18th and 19th at sunset local time look westward for our Moon and two planets. The 4-day old waxing crescent Moon will be about 6o to the west, right from Jupiter and about 9o from Saturn.

   During the 24-hours between the two evenings our Moon will have aged 1 day and will have moved approximately 15o toward the east. And by Friday the Moon will be about 5o to the east, left from Saturn and about 7o from Jupiter.

   
   
   

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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the Moon and the Twins

   Late Thursday evening November 5th look toward the eastern horizon for the 20-day old waning gibbous Moon to be about 7-8o from the ‘Twins Stars’ Pollux and Castor as they rise together.

   
   
   

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November Moon at Ascending Node

   Wednesday November 4th the 19-day old waning gibbous 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 19-day old waning gibbous Moon will be over the eastern horizon around sunset local time. Mars is higher over the southeastern horizon while Jupiter and Saturn are low over the western horizon.

   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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October Moon at Apogee #2

   Our Moon reaches apogee, (furthest from Earth), for this orbit, on Friday October 30th. For this apogee the 14-day old waxing gibbous Moon will be at a distance of 31.86 Earth diameters, 252,525 miles (406,400 km) from the Earth.

   On the date of the apogee the 14-day old waxing gibbous Moon will be 13-14o from the planet Mars. The Moon will also be about 11o west from the outer planet Uranus, and about 11o east from Dwarf Planet Eris.


   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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Moon – Mars Conjunction

   Over the next two evenings the 12-13 day old waxing gibbous Moon will pass by the ‘Red Planet’ Mars coming within about 7-8o on Wednesday October 28th and within about 3-4o on Thursday evening October 29th.

   
   
   

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-Jupiter/Saturn Conjunction

   Thursday October 22nd and Friday October 23rd our Moon will be in conjunction with Jupiter and Saturn. On Thursday the 6.5-day old first quarter Moon will be about 3-4o east from Jupiter. Then, on Friday the 7.5-day old waxing gibbous Moon will be about 11-12o east from Saturn.
   Joining the trio across the horizon toward the east are the planets Neptune and Mars, as well as Dwarf Planet Ceres.

   
   
   

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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October Moon at Descending Node

   Tuesday October 20th the 4-day old waxing crescent Moon crosses 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 date of the descending node the waxing crescent Moon will be over the southwestern horizon at sunset local time. Spread across the horizon from west to east are Jupiter, Saturn, Dwarf Planet Ceres, Neptune, and 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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Saturn at 2020 Eastern Quadrature

   Sunday October 18th the position of the planet Saturn with respect to the Earth and the Sun places this ringed planet at what is called eastern quadrature. Saturn is at a 90 degree angle from us as this graphic shows. Think first quarter Moon as that is a fair comparison of the relative positions. At this position Saturn follows the Sun across the sky from east to west as the Earth is rotating, meaning that Saturn rises after the Sun and sets after the Sun.

   Where is Saturn now? Saturn is over the southern horizon at sunset and is about 6o east (to the left) from the planet Jupiter. Further east is the Dwarf Planet Ceres, then Neptune, and over the eastern horizon is the still brightly shining Mars.

   
   
   Learn a little (or a lot) more about Saturn by visiting the Cassini at Saturn mission web site. Click here to go to the Cassini Mission web site.

   This is a short 5 minute video I made as part of a live musical performance called “Orbit” that I was part of in May 2011. This is a piece from the much longer tour of the solar system performance and video and shows Saturn and some of its moons as viewed from the Cassini spacecraft that month.

   
   
   

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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Taurus Eyes the Moon!

   Late Tuesday evening October 6th the 20-day old waning gibbous Moon will be 4-5o from the reddish star Aldebaran in the constellation Taurus the Bull.

   Aldebaran with its reddish color is known from mythology as the ‘angry eye‘ of the Bull. Aldebaran is also one of the two end stars in the v-shaped group of stars making up the face of the bull. This group of stars is an open star cluster, the Hyades, and is one two open star clusters easily seen with the unaided eye within the constellation. The tiny dipper-shaped Pleiades is the other open star cluster.

   
   
   

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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October Moon at Apogee

   Our Moon reaches apogee, (furthest from Earth), for this orbit, on Saturday October 3rd. For this apogee the 16-day old waning gibbous Moon will be at a distance of 31.85 Earth diameters, 252,463 miles (406,300 km) from the Earth.


   On the date of the apogee the 16-day old waning gibbous Moon will be about 1-2o to the east from the planet Mars and both very visible through the night hours, and shining brightly over the western horizon at sunrise.

   Our Moon and Mars should make for an interesting view with binoculars but considering the difference in apparent brightness (Moon: -12.6 vs Mars: -2.52) the Moon’s reflected sunlight will ‘drown out’ Mars. On the other hand, or direction, Venus is still close to the ‘heart of the Lion’ the star Regulus. Venus is unmistakable with an apparent magnitude -4.07 of compared to the 1.34 apparent magnitude of Regulus.


   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.


Also Follow me and other great resources at Feedspot.