Moon
Full Moons - 2021-22
Panorama illustrating the geocentric declination, distance, angular diameter and brightness of 15 Full Moons
Panorama illustrating the geocentric declination, distance, angular diameter and brightness of 15 Full Moons
Lunar Libration
Graph of the monthly apparent swings of the lunar surface in both longitude and latitude
Graph of the monthly apparent swings of the lunar surface in both longitude and latitude
Lunar & Solar Eclipses
Preview graphics with data for upcoming eclipses with high Solex numerical intergration accuracy & precise elliptical shadow of Earth
Preview graphics with data for upcoming eclipses with high Solex numerical intergration accuracy & precise elliptical shadow of Earth
Moon
Lunar Terminator on Rayed Craters & Lunar X
Table of sunrises and sunsets on craters as the lunar terminator sweeps across them during the current lunar month
Table of sunrises and sunsets on craters as the lunar terminator sweeps across them during the current lunar month
Lunar Occultations of Planets & Stars
Graze maps, preview graphics and Besselian elements for upcoming occultations of bright planets & stars by the Moon
Graze maps, preview graphics and Besselian elements for upcoming occultations of bright planets & stars by the Moon
New Moon Spotting - 2021 NOV 05
View of the western sky from Chicagoland, with the young crescent Moon lower right of Antares at 20 minutes after sunset
View of the western sky from Chicagoland, with the young crescent Moon lower right of Antares at 20 minutes after sunset
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It’s a challenge every month to spot the New Moon after sunset by naked eye (or eyeglasses) as early as possible. I use the term New Moon in its classical 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 reach a geocentric minimum illuminated fraction of its apparent disk on 2021 NOV 04 at 21:31 UT (15:31 CST).
Sharp eyed observers may attempt to spot the one-day-old Moon on November 5. Others should have better luck the following evening. See my New Moon Spotting chart above.
The Dark Moon (which some call New Moon) will reach a geocentric minimum illuminated fraction of its apparent disk on 2021 NOV 04 at 21:31 UT (15:31 CST).
Sharp eyed observers may attempt to spot the one-day-old Moon on November 5. Others should have better luck the following evening. See my New Moon Spotting chart above.