July Full Moon at Apogee, Descending Node, A Lunar Eclipse, and Conjunction with Mars

Apogee Moon
   Our Moon reaches apogee, (greatest distance from Earth), on Friday July 27nd. At that time the Moon will more or less be at a distance of 31.84 Earth diameters (406,223 km or 252,415. 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?”

Descending Node
   Friday July 27th the full 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.

Total Lunar Eclipse
   When the Moon crosses the ecliptic, a node crossing, and the Moon is either at full or new phase there will be an eclipse. The length of the eclipse and whether or not it will be partial or total depends upon the timing. The closer the two events are to each other the greater the eclipse. This total lunar eclipse will be a long one at nearly 2 hours for totality. However the eclipse will not be visible from North America.
   Get eclipse information from the Hermit Eclipse web site.
   Watch the Lunar Eclipse live. Webcast hosted by the Bareket Observatory in Israel. Webcast starts at 18:30 UTC (1:30 pm CDT).

Conjunction
   On the day of the apogee and descending node the full Moon will be over the southern horizon and within about 6-7o from the planet Mars.

   
   
   

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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Saturn at 2018 Opposition

saturn-opposition-ani
   Wednesday June 27th the outer planet Saturn reaches its orbital position known as opposition. This is a position which has the faster moving Earth passing Saturn and at opposition is centered between the outer planet and the Sun. Picture the arrangement with the Moon at full phase; Sun – Earth – Moon, and that is similar to the arrangement for Saturn at opposition.

   When an outer planet, like Saturn, reaches opposition that planet rises around local time for sunset and is visible all night. Coincidentally the full Moon will rise with Saturn and be within about 1-2o from Saturn and should make for an interesting view with binoculars or picture.

   
   
   
   
   

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.

Moon in Conjunction with Jupiter

   Monday evening April 30th the just past full Moon, waning gibbous, will be rising within 3-4o from the ringed planet Jupiter. Both are located within the constellation of Libra the Scales. Both the Moon and Jupiter will easily fit within a binocular field of view.

   Very close to the Moon is 4th magnitude Gamma Librae – but given the brightness of the Moon that star may be difficult to see.

   
   
   

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.

A Second Blue Moon

   Saturday evening March 31st the second full Moon of this month will be rising in the east at sunset local time. According to the popular definition for a ‘Blue Moon’ the second full Moon in a month is known as the ‘Blue Moon’. This happens about every 2.5 years with this year being a little more different in that there were two Blue Moons, the first this past January and the second Blue Moon this month.

   
   
   

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.

January Super Full Moon at Perigee


   Our Moon reaches perigee, (closest distance from Earth), for this orbit on Monday January 1st. At that time the Moon will be at a distance of 27.98 Earth diameters (356,600 km or 221,581 miles) from the Earth making this full Moon the year’s Super Moon.
   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 full Moon is above the eastern horizon about 1 hour after sunset local time. The Moon 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.

Venus – Mars Conjunction


   Thursday morning October 5th the inner planet Venus will be within about 0.5o from the planet Mars. With either a telescope or through binoculars the two planets will make for a great view.

   
   
   

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.

Full Moon – Partial Lunar Eclipse


   Monday August 7th the full Moon, just one day before it will be at descending node, passes through the Earth’s outer shadow and briefly crosses through part of the darker inner shadow, the umbra. This sets up a partial lunar eclipse.
   The Earth has two distinct shadows, an inner and much darker umbra, and the outer and fainter penumbra as this NASA graphic shows.
   This eclipse will not be visible across the continental United States.

    For additional information about this or other eclipses go to the Hermit Eclipse web site.

   
   
   

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.