April Moon at Apogee

 Our Moon reaches apogee, (greatest distance from Earth), on Saturday April 15th. At that time the Moon will more or less be at a distance of 31.78 Earth diameters (405,475 km or 251,950 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*

*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 on graphic to see it larger   On the morning of the apogee Moon the 18-day old waning gibbous Moon rises a couple of hours before the Sun and is visible over the southern horizon.

   
   
   

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 Apogee

 Our Moon reaches apogee, (greatest distance from Earth), on Saturday March 18th. At that time the Moon will more or less be at a distance of 31.72 Earth diameters (404,640 km or 251,432 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*

*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 morning of the apogee Moon the 20-day old waning gibbous Moon rises a couple of hours before the Sun and is visible over the southern horizon.

   
   
   

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

3mar-perigee_moon   The Moon reaches perigee, (minimum distance from Earth), this month on Friday March 3rd. At that time the Moon will more or less be at a distance of 29.83 Earth diameters (369,062 km or 229,324 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 5.5-day old waxing crescent Moon is above the wstern horizon at sunset local time and sets a few hours later.

   *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 Apogee Moon

18mar-apogee_moon Our Moon reaches apogee, (greatest distance from Earth), on Saturday February 18th. At that time the Moon will more or less be at a distance of 31.70 Earth diameters (404,650 km or 251,438 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 as they both rotate around a common balance point, the barycenter.*

*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 apogee Moon the 21-day old last quarter Moon rises a couple of hours before the Sun and is visible over the southern horizon before sunrise.

   
   
   

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.

January Moon at Apogee

22jan-apogee_moon Our Moon reaches apogee, (greatest distance from Earth), on Sunday January 22nd. At that time the Moon will more or less be at a distance of 31.74 Earth diameters (404,914 km or 251,601 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*

*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 morning of the apogee Moon the 24-day old waning crescent Moon rises a couple of hours before the Sun and is visible over the southern horizon.

   
   
   

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.

January Moon at Perigee

10jan-perigee_moon   The Moon reaches perigee, (minimum distance from Earth), this month on Tuesday January 10th. At that time the Moon will more or less be at a distance of 28.4 Earth diameters (363,238 km or 225,705 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.

   
   
   *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.

December Apogee Moon and A Special BirthDate

25dec-apogee_moonOur Moon reaches apogee, (greatest distance from Earth), on Sunday December 25th. At that time the Moon will more or less be at a distance of 31.80 Earth diameters (405,870 km or 252,196 miles) from the Earth.
   A Special Birth Date:
   Centuries ago on December 25th a birth occurred that would later lead to a knew understanding of the universe and our place within the universe. Were he alive today Isaac Newton would be 374 years old. Happy B-Day Isaac!
   But wait! Was Isaac Newton born on December 25th 1642, or January 4th 1643? At that time there were two calendars in use and the part of England where he was born had not yet switched to the new Gregorian Calendar which would have his birthdate in January rather than December as shown on the Julian Calendar. Here is an interesting explanation about this.

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

   
   The nearly new Moon, a 26-day old thin waning crescent Moon, rises about 2 hours before the Sun.

   
   
   
   

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.