Current Lunar Phases Viewed From Four Sides

Lunar Hemispheric Phase Explorers Current Lunar Phases as Viewed From Above the Four Hemispheres With the Option of Changing to Any Custom Phase Angle 1500×1500-pixel HD Edition
Current Geocentric Lunar Coordinates, Distance and Phase Based on the NASA/JPL DE405 Ephemeris Model Working Date UD = 2024 Apr 26 - Fri Working Time UT = 16:09:03 Astronomical JD TT = 2460427.17380838 Right Ascension = 16.3422108 hr = 16h 20m 31.96s Declination = -25.676228 deg = -25° 40' 34.42" Distance = 391632.6 km = 243349.2 mi Phase Angle = 210.759 deg REFRESH Page to Update Statistics and Images For Current Date and Time CLICK On Hemispheric Image For Full HD View In a New Tab
N Current Near Side View Standard Geocentric Earth View Sans Librations Geocentric Phase: 211°	N Current Far Side View Behind the Moon Looking Back Earth is Directly Behind Moon Relative Phase: 31°
N Current West Side View Centered Over Western Hemisphere Earth is Directly to the Right Relative Phase: 121°	N Current East Side View Centered Over Eastern Hemisphere Earth is Directly to the Left Relative Phase: 301°

LUNAR HEMISPHERIC PHASE EXPLORERS - HD EDITION FOR LARGE MONITORS DEVELOPED USING AN ULTRA-WIDE (2560x1080) HD MONITOR Author : Jay Tanner Revised : 2017-2022 Language : PHP v5.6.11 - v7.4.9 This program displays shaded lunar phase simulations of the four lunar hemispheres based on the NASA/JPL DE405 ephemeris model and lunar surface map composed from Clementine imaging and a digital elevation model (DEM) derived from the Lunar Orbiter Laser Altimeter (LOLA) altimetry data. Although the images appear like photographs, they are computer-generated simulations based on NASA data and the phase shading computed from actual solar and lunar positions at the moment of computation, simulating reality very closely. There are 4 sets of lunar surface maps centered on the front side, far side, east and west hemispheres which can be viewed at any relative phase angle from 0 to 360 degrees. The images are 1500x1500 PNG images on transparent backgrounds. In terms of 3D perspective, all the hemispheric phase images are as viewed from the same mean geocentric distance of 238857 mi (384403 km) and then magnified through a virtual telescope. Imagine the moon at the center of a circle with the sun moving around it from 0 to 360 degrees in a clockwise direction. The position of the sun on this phase circle is the phase angle. The new moon is at zero degrees with the sun behind the moon, progressing clockwise from there cycling through all the lunar phases according to the table below. ------------------------------------------------------ RELATIVE PHASE ANGLES (NORTH IS UPWARD) ------------------------------------------------------ Relative Phase Angle Direction of Illumination ------------------ ----- ------------------------- (NM) New Phase 0° From behind the moon (FQ) First Quarter 90° Directly from the right (FM) Full Phase 180° From behind the eye (LQ) Last Quarter 270° Directly from the left ------------------------------------------------------ On initial startup, the current phases are computed using the NASA/JPL DE405 ephemeris model spanning the 600-year period from 1600 to 2200, referred to the true equinox and ecliptic of the date. Refreshing the page updates the geocentric phases and ephemeris statistics for the current date and UTC. Simply click on any of the 4 hemispheric views for a full 1500x1500 HD view. INTERFACE BUTTON PHASE VIEWING OPTIONS ---------------------- ------------------------------------------ [−] Decrement Phase Image by −1 degree [+] Increment Phase Image by +1 degree [Mirror Phase] Mirrors the Currently Displayed Phase [Invert Illumination] Swaps Dark/Light [Random Phase] Displays a Random Phase Image [Current Phase] Displays Phase For Current Date and UTC
Program and Graphics by Jay Tanner Revised: Thursday, January 01, 1970 at 12:00:00 AM UTC