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.

A Lunar Conjunction with a Dwarf Planet


   Thursday evening March 2nd watch for the 4.5-day young waxing crescent Moon to be about 2o away from Dwarf Planet Ceres. Seeing Ceres with an apparent magnitude of around 8 may be difficult when the Moon is this close, especially using binoculars. 2march-tele
   However with a telescope Ceres should resolve into a small disc shape as this simulated view with a 25mm eyepiece on a 6″ reflector shows. There are two 6th magnitude stars on either side of Ceres that could be used as reference points for Ceres location if you are following the Dwarf Planet as it moves along its orbit.

   
   
   
   
   

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.

Crescent Moon, Venus, and Comet Encke


   Tuesday evening February 28th the 2.5-day young waxing crescent Moon will be about 9o from the inner planet Venus and about the same distance from Comet Encke (2P).
   Mars and Venus as well as three Dwarf Planets are also above the horizon at sunset local time as the graphic is showing.
   
   
   

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.

Moon and Saturn Conjunction


   Tuesday morning February 21st the 23.5-day old waning crescent Moon will be 4-5o away from the planet Saturn as this graphic shows. With 7×50 binoculars the two should make for a striking pair.

   
   
   

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 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.

Moon Cruises Past Planets and Stars

feb5-bino
   Over the next several evenings the Moon, as it orbits toward the east and waxes from crescent to first quarter phase will pass by several planets, dwarf planets, and star clusters. On the evening of February 5th the Moon will be close to the reddish star Aldebaran, the ‘eye’ in the face of the angry bull, Taurus. This should make for a nice view with binoculars or low power eyepiece when the Moon will sort of overlay the stars of the open star cluster the Hyades.

   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 go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

Moon Near Jupiter and Spica


   Thursday January 19th morning several hours before sunrise local time the last quarter Moon will be within a few degrees from Jupiter and the blue-white star Spica in Virgo the Harvest Maiden.
This graphic simulates a view using 10×50 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.