March Moon at 2nd Perigee

   Our Moon reaches perigee, (closest to Earth), for the second time this orbit, on Tuesday March 30th. For this perigee the 18-day old waning gibbous Moon will be at a distance of 28.24 Earth diameters, 223,880 miles (360,300 km) from the Earth.

   On the date of the perigee Moon the 18-day old waning gibbous Moon will rise around 10 pm local time. The Moon is within the boundaries of Libra the Scales and on either side of the Moon are two stars with interesting sounding names. They are the stars Zubeneschamali and Zubenelgenubi. Despite these two stars belonging to the constellation Libra the Scales the translation of the star names mean “Northern Claw” (Zubeneschamali), and “Southern Claw” (Zubenelgenubi) of Scorpius the Scorpion.


   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 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.

Virgo Grabs for the Moon


   Monday evening the 16-day old waning gibbous Moon will be about 7-8o from the blue-white star Spica in Virgo the Harvest Maiden.

   
   
   

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.

February Moon at Perigee & Spica Conjunction

   Our Moon reaches perigee, (closest to Earth), for this orbit, on Wednesday February 3rd. At that time the Moon will be at a distance of 28.8 Earth diameters, 229,986 miles (370,127 km) from the Earth.

   Before sunrise on the date of the perigee Moon the 20.4-day old waning gibbous Moon and will be about 7-8o from the star Spica in Virgo the Harvest Maiden.

   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 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 – Regulus Conjunction


   Late Saturday evening January 2nd, or early Sunday morning the 3rd, watch for the 20-day old waning gibbous Moon to be about 6-7o from the star Regulus. Regulus is the ‘heart’ of the lion, the constellation Leo the Lion.

   
   
   

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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Waning Gibbous Moon and the Twins

   Thursday evening December 3rd the 20-day old waning gibbous Moon will be in the arms of the Gemini Twins. Look for the Moon, Pollux and Castor as they rise a couple of hours after sunset local time.

   
   
   

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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Mars at Ascending Node

click on graphic to see it larger   Two or three times each month I post information about the location of our Moon as it crosses the ecliptic, the Earth’s orbital path around the Sun. These are known as nodes and there is an ascending node and a descending node representing the location where the Moon crosses the ecliptic moving north or south.

   The ecliptic is used as the reference for all solar orbiting objects and with regard to the planets each of them is tilted or inclined from the ecliptic. So each planet, like our Moon, has an ascending and descending node.

   On Wednesday December 2nd the planet Mars crosses the ecliptic moving north, it’s ascending node.

   Click here to learn a little more about the ecliptic. This was a previous post from December 2019, but it still illustrates the ecliptic and the planets respective orbits relative to the ecliptic.

   This table shows the inclination of planets relative to the ecliptic as well as the Sun’s equator extended outward.

   
   
   
   
   
   
   

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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A Missouri Morning with the ISS

   This morning opened up with a colorful sunrise as the background for the ISS as it orbited toward the southeast. High overhead toward the south was the near last quarter Moon brightening the sky in that direction. However this was not a morning for taking pictures of the Moon.
   Right on time the ISS appeared over the northwest horizon and steadily moved past Polaris, the North Star, then past the Big Dipper’s Dipper heading toward the star Arcturus in Bootes the Herdsman. On its way toward the southeastern horizon the ISS went past Venus, Mercury and the star Spica in Virgo the Harvest Maiden.
   While waiting and taking random pictures in different directions I managed to catch a Taurid Meteor!

   
   
   

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 Beehive Cluster

   During the early morning hours of November 7th and 8th our Moon, as it wanes from gibbous to last quarter, will be passing by M-44, an open star cluster. M-44 is also known as the Beehive Cluster, and is located within the constellation Cancer the Crab.

   
   
   

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.

   
   
   

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

   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.


Also Follow me and other great resources at Feedspot.