Moon and the Hyades

   Wednesday and Thursday January 16th and the 17th the waning gibbous Moon will be passing past the open star cluster the Hyades and the reddish star Aldebaran. This is a v-shaped group of stars that make up the face of Taurus the Bull. The Hyades is one of two open star clusters in the constellation Taurus. The other is a small dipper-shaped group of stars, the Pleiades, located on the shoulder of Taurus.

   
   
   

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 – Uranus Conjunction

   Monday evening January 14th the 9-day old waxing gibbous Moon will be about 6-7o from the outer planet Uranus. Both are close enough to fit within a binocular field of view.
   However don’t realistically expect to see Uranus as Uranus has an apparent magnitude of 5.78 compared to the much brighter -12.0 apparent magnitude of the Moon.

   
   
   

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 – Mars Conjunction

   Saturday evening January 12th, after sunset, the 7-day old waxing crescent Moon will be about 4o from the planet Mars. The two will easily fit within the field of view of binoculars.

   
   
   

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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January Moon at Apogee

   Our Moon reaches apogee, (greatest distance from Earth), on Wednesday January 9th. At that time the Moon will more or less be at a distance of 31.83 Earth diameters 406,116 km (252,349 mi.) from the Earth.

   Does our Moon actually go around the Earth? 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*

   On the day of the apogee the 4-day old waxing crescent Moon will be over the southwestern horizon at sunset local time.

*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?”

   
   
   

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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January Moon at Descending Node


   Monday December 7th the 2-day old waxing 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 2-day old thin waxing crescent Moon will be over the southwest horizon about an hour after the Sun sets.

   
   
   
   
   

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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Crescent Moon and Jupiter Follow-Up

   This morning, January 3rd on my way to the gym I paused along Highway 50 and then near the small lake by the gym for a couple of pictures of the waning crescent Moon, Jupiter, and Venus.

   
   
   

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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Thin Crescent Moon Conjunction with Jupiter

   Thursday morning January 3rd the 27.25-day old thin waning crescent Moon will be within 3-4o from the outer planet Jupiter. The two will easily within the field of view of binoculars. Jupiter is about 5-6o from the heart of Scorpius the Scorpion, the reddish star Antares.

   
   
   

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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