MOON

Calendar Moon 10 Occultations Moon 11 Moon 12 Moon 01 Moon 02 Moon 03 Moon 04

Rising Full Moon Timetable - Chicago - 2015

Rising time, illumination, brightness, azimuth and diameter of Full Moon calculated for Adler Planetarium observers, but good for all Chicagolanders each lunar month


Moon 05

Mean Lunar Orbit

Diagram depicting the true scale of the lunar orbit at a mean eccentricity of 0.0550 and a mean ellipticity of 1.0015 drawn relative to the center of a fixed Earth


Path of the Moon - 2015 January

Chart of the Moon’s monthly path indicating dates for phases, conjunctions and other key relationships


Lunar Occultations of Planets and Stars

Graze maps, preview graphics, data and Besselian elements for upcoming occultations (coverings) of planets and stars by the Moon


Moon Photos

Landscape photos taken from Arlington Heights, Illinois by Curt Renz featuring the Moon usually during twilight while amid clouds or other foreground objects



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Path of the Moon - 2014 December

Chart of the Moon’s monthly path indicating dates for phases, conjunctions and other key relationships


New Moon Spotting - 2014 DEC 22

Preview of western sky from Chicagoland with the Moon to the right of Venus at 20 minutes after sunset - See article below.


Waxing Crescent Moon - 2014 DEC 23

Preview of western sky from Chicagoland with the Moon above Venus at 40 minutes after sunset - See article below.


Waxing Crescent Moon - 2014 DEC 24

Preview of western sky from Chicagoland with the Moon to the right of Mars at 60 minutes after sunset - See article below.


Moon 06 Moon 08 Moon 07

                                       DECEMBER NEW MOON SPOTTING


It’s a challenge every month to spot the New Moon by naked-eye from near ground level after sunset at the earliest date possible. I use the term New Moon in its traditional sense of one’s first sighting of the Moon after its monthly solar conjunction (Dark Moon). The Dark Moon (which some call New Moon) will be in geocentric longitudinal conjunction with the Sun on 2014 DEC 22 at 01:36 UT (21 at 19:36 CST).


   The early spotting of a New Moon becomes much easier for observers north of the tropics as we move past the time of the winter solstice. This causes the angle at sunset to become wider between the ecliptic and the horizon. The young Moon being north of the ecliptic also helps.


   Some observers may set personal records when spotting the less than a day old Moon to the right of Venus on DEC 22. Others should have no problem the following evening. See my previews above for DEC 22-24.


Also above is a link to a panorama including all Diana’s Bows in 2015. That’s a waxing crescent Moon about 10% illuminated and aged about three days. The name is a reference to the archery equipment of the ancient Roman Goddess of Hunting and the Moon. The graphic nicely illustrates how the season of the year affects the viewing of a waxing crescent Moon.


© Curt Renz


Moon 09

Partial Lunar Eclipse - 2015 APR 04

Panorama of 7 eclipse phases as seen from San Francisco - Other sources simply assume Earth to be perfectly spherical and call this eclipse total. I account for Earth’s oblate shape.


Moon Photos
Orion Telescopes and Binoculars

Monthly Lunar Calendar

Daily lunar phases, eclipses, planetary events and meteor showers

A Great Computer Desktop Background Wallpaper!


Diana’s Bows - 2015

Panorama of all 12 evening waxing crescent Moons approximately 10% illuminated and aged about 3 days - See last paragraph of article below.


Morning Bows - 2015

Panorama of all 12 morning waning crescent Moons approximately 10% illuminated about 3 days prior to solar conjunction


Full Moons - 2015

Panorama illustrating the geocentric declination, distance, angular diameter and relative brightness of 15 Full Moons


Cycle of Lunar Phases

Simplified diagram not to true scale illustrating how the shape of the illuminated portion of the Moon’s apparent disk changes as our natural satellite orbits the Earth