November Moon at Perigee


   Our Moon reaches perigee, (closest distance from Earth), for this orbit on Monday November 6th. At that time the Moon will be at a distance of 28.33 Earth diameters (361,438 km or 224,587 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*


   On the day of the perigee Moon the 18-day old waning gibbous Moon is above the eastern horizon around 10:30 pm local time. The Moon is located just west of Orion’s club and Orion appears to be swinging his club as if it were a baseball bat toward the Moon.

   *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 go to bobs-spaces.

August Perigee Moon

Our Moon reaches perigee, (closest distance to Earth), for this orbit on Friday August 18th. At that time the Moon will be at a distance of 28.70 Earth diameters (366,121 km or 227,497 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*

   On the day of the perigee Moon the 26-day old thin waning crescent Moon is above the eastern horizon about 30 minutes to an hour before the Sun rises. The inner planet Venus (-3.97 apparent magnitude) is within about 9o from the Moon while the Dwarf Planet Ceres, at an apparent 8th magnitude is too dim to be visible to the naked eye, is about 8o from the Moon.

   *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 go to bobs-spaces.

March Moon at Perigee #2


   The Moon reaches perigee for the second time, (minimum distance from Earth), this month on Thursday March 30th. At that time the Moon will more or less be at a distance of 28.5 Earth diameters (363,853 km or 226,088 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*
   On the day of the perigee Moon the 3-day old waxing crescent Moon is over the western horizon at sunset local time, above to the left from Mars, and Mars sets a few hours after the Sun sets.

   *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 go to bobs-spaces.

February Perigee Moon

6feb-perigee_moon   The Moon reaches perigee, (minimum distance from Earth), this month on Monday February 6th. At that time the Moon will more or less be at a distance of 28.91 Earth diameters (368,816 km or 229,172 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*

   On the day of the perigee Moon 13-day old nearly full Moon rises just before sunset local time and is located near the feet of the Gemini Twins.
   These two animated graphics show the sky as viewed from Quito Ecuador at 0o latitude, and my home latitude of approximately 40o North. They show the sky at one day intervals starting with February 1st and ending with February 5th.


   
   
   *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 go to bobs-spaces.

November Perigee, and Full Moon

14nov-perigee_moon   The Moon reaches perigee, (minimum distance from Earth), this month on Monday November 14th. At that time the Moon will more or less be at a distance of 27.95 Earth diameters (356,509 km or 221,524 miles) from the Earth.
   The Moon reaches perigee Monday at 11:30 UT (5:30 am CST) and this is about 2 hours before it will be at full Moon phase at 13:52 UT, (7:52 am CST November 14th). Since the full Moon is this close to its closest to the Earth for this orbit the full Moon could be considered one of the ‘Super Moons’ this year. In fact this is the closest one for this year and according to records the closest full Moon in the past 30 years.
full-moons2016-ani
   This animated graphic shows the full Moons of 2016. Are you able to see a difference in the sizes?

   Read more about the idea of a super Moon or super mini-Moon in a previous posting.

   Does our Moon actually go around the Earth as the first 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?”

   On the day of the lunar perigee the full Moon rises at around sunset local time and is setting at sunrise the following morning.

   
   
   

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.

July Perigee Moon #2

   The Moon reaches perigee, (minimum distance from Earth), this month on Wednesday July 27th. At that time the Moon will more or less be at a distance of 28.98 Earth diameters (369,662 km or 229,697 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*


On the morning of the 27th the thin 23-day old last quarter Moon rises around midnight local time, and is west from the open star cluster the Pleiades.
   
   
   
   
   
   
   *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 go to bobs-spaces.

July Moon at Perigee

   The Moon reaches perigee, (minimum distance from Earth), this month on Friday July 1st. At that time the Moon will more or less be at a distance of 28.69 Earth diameters (365,983 km or 227,411 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*


On the morning of the 1st the thin 26.5-day old waning crescent Moon rises a couple of hours before sunrise. The Moon forms the west pointing corner of a celestial triangle with the base formed by the open star clusters the Pleiades and the Hyades.
   
   
   
   
   
   
   *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?”

   
   
   
Caution: Objects viewed with an optical aid are further than they appear.
   Click here to go to the Qué tal in the Current Skies web site for more observing information for this month.